North American Fruit Explorers mailing list at ibiblio

[Suzi Teghtmeyer <srt175f@smsu.edu>]

MRK,
I did a quick (note 'quick') search in some of my databases and found 9 
titles.  I searched for keywords 'auxin' and 'grafting'.
----Suzi

> Database: AGRICOLA, ArticleFirst, BioAgIndex
> Query: kw: auxin and kw: grafting
>
> Author(s):           Morris, S.E. ; Turnbull, C.G.N. ; Murfet, I.C. ;
>                      Beveridge, C.A.
> Title:               Mutational analysis of branching in pea. Evidence
>                      that Rms1 and Rms5 regulate the same novel signal.
> Source:              Plant physiology. 126, no. 3 (July 2001): p.
>                      1205-1213.
>                      Additional Info:     Rockville, MD : American
>                      Society of Plant Physiologists, 1926- Publishing 
> Agencies: US Imprint,
>                      not USDA
> Standard No:         ISSN:                0032-0889
> Language:            English
> Abstract:            The fifth increased branching ramosus (rms)
>                      mutant, rms5, from pea (Pisum sativum), is described 
> here for phenotype
>                      and grafting responses with four other rms mutants. 
> Xylem sap zeatin
>                      riboside concentration and shoot auxin levels in 
> rms5 plants have also
>                      been compared with rms1 and wild type (WT). Rms1 and 
> Rms5 appear to act
>                      closely at the biochemical or cellular level to 
> control branching,
>                      because branching was inhibited in reciprocal 
> epicotyl grafts between
>                      rms5 or rms1 and WT plants, but not inhibited in 
> reciprocal grafts
>                      between rms5 and rms1 seedlings. The weakly 
> transgressive or slightly
>                      additive phenotype of the rms1 rms5 double mutant 
> provides further
>                      evidence for this interaction. Like rms1, rms5 
> rootstocks have reduced
>                      xylem sap cytokinin concentrations, and rms5 shoots 
> do not appear
>                      deficient in indole-3-acetic acid or 
> 4-chloroindole-3-acetic acid. Rms1
>                      and Rms5 are similar in their interaction with other 
> Rms genes.
>                      Reciprocal grafting studies with rms1, rms2, and 
> rms5, together with
>                      the fact that root xylem sap cytokinin 
> concentrations are reduced in
>                      rms1 and rms5 and elevated in rms2 plants, indicates 
> that Rms1 and Rms5
>                      may control a different pathway than that controlled 
> by Rms2. Our
>                      studies indicate that Rms1 and Rms5 may regulate a novel
>                      graft-transmissible signal involved in the control 
> of branching.
> Class Descriptors:   NAL:                 450 P692
> SUBJECT(S)
> Identifier:          Pisum sativum.
>                      Mutations.
>                      Branching.
>                      Biochemical pathways.
>                      Genotypes.
>                      Grafting.
>                      Mutants.
>                      Xylem.
>                      Sap.
>                      Zeatin riboside.
>                      Plant composition.
>                      Auxins.
>
> Database:            AGRICOLA
>
> ------------------------------------------------------------------------
>
> Author(s):           Foo, E. ; Turnbull, C.G.N. ; Beveridge, C.A.
> Title:               Long-distance signaling and the control of
>                      branching in the rms1 mutant of pea.
> Source:              Plant physiology. 126, no. 1 (May 2001): p.
>                      203-209.
>                      Additional Info:     Rockville, MD : American
>                      Society of Plant Physiologists, 1926- Publishing 
> Agencies: US Imprint,
>                      not USDA
> Standard No:         ISSN:                0032-0889
> Language:            English
> Abstract:            The ramosus (rms) mutation (rms1) of pea (Pisum
>                      sativum) causes increased branching through 
> modification of
>                      graft-transmissible signal(s) produced in rootstock 
> and shoot.
>                      Additional grafting techniques have led us to 
> propose that the novel
>                      signal regulated by Rms1 moves acropetally in shoots 
> and acts as a
>                      branching inhibitor. Epicotyl interstock grafts 
> showed that wild-type
>                      (WT) epicotyls grafted between rms1 scions and 
> rootstocks can revert
>                      mutant scions to a WT non-branching phenotype. 
> Mutant scions grafted
>                      together with mutant and WT rootstocks did not 
> branch despite a
>                      contiguous mutant root-shoot system. The primary 
> action of Rms1 is,
>                      therefore, unlikely to be to block transport of a 
> branching stimulus
>                      from root to shoot. Rather, Rms1 may influence a 
> long-distance signal
>                      that functions, directly or indirectly, as a 
> branching inhibitor. It
>                      can be deduced that this signal moves acropetally in 
> shoots because WT
>                      rootstocks inhibit branching in rms1 shoots, and 
> although WT scions do
>                      not branch when grafted to mutant rootstocks, they 
> do not inhibit
>                      branching in rms1 cotyledonary shoots growing from 
> the same rootstocks.
>                      The acropetal direction of transport of the Rms1 
> signal supports
>                      previous evidence that the rms1 lesion is not in an 
> auxin biosynthesis
>                      or transport pathway. The different branching 
> phenotypes of WT and rms1
>                      shoots growing from the same rms1 rootstock provides 
> further evidence
>                      that the shoot has a major role in the regulation of 
> branching and,
>                      moreover, that root-exported cytokinin is not the only
>                      graft-transmissible signal regulating branching in 
> intact pea plants.
> Class Descriptors:   NAL:                 450 P692
> SUBJECT(S)
> Identifier:          Pisum sativum.
>                      Apical dominance.
>                      Shoots.
>                      Roots.
>                      Growth.
>                      Plant morphology.
>                      Branching.
>                      Genetic regulation.
>                      Signals.
>                      Mutants.
>                      Genetic variation.
> Database:            AGRICOLA
>
> ------------------------------------------------------------------------
> Author(s):           Beveridge, C.A.
> Title:               Long-distance signalling and a mutational analysis
>                      of branching in pea.
> Source:              Plant growth regulation. 32, no. 2/3 (Nov 2000):
>                      p. 193-203.
>                      Additional Info:     Dordrecht : Kluwer Academic
>                      Publishers. Publishing Agencies: Non-US Imprint, not FAO
> Standard No:         ISSN:                0167-6903
> Language:            English
> Abstract:            Four ramosus mutants with increased branching at
>                      basal and aerial nodes have been used to investigate 
> the genetic
>                      regulation of bud outgrowth in Pisum sativum L. 
> (garden pea). Studies
>                      of long-distance signalling, xylem sap cytokinin 
> concentrations, shoot
>                      auxin level, auxin transport and auxin response are 
> discussed. A model
>                      of branching control is presented that encompasses two
>                      graft-transmissible signals in addition to auxin and 
> cytokinin. Mutants
>                      rms1 through rms4 are not deficient in 
> indole-3-acetic acid (IAA) or in
>                      the basipetal transport of this hormone. Three of 
> the four mutants,
>                      rms1, rms3 and rms4, have very reduced cytokinin 
> concentrations in
>                      xylem sap from roots. This reduction in xylem sap 
> cytokinin
>                      concentration appears to be caused by a property of 
> the shoot and may
>                      be part of a feedback mechanism induced by an aspect 
> of bud outgrowth.
>                      The shoot-to-root feedback signal is unlikely to be 
> auxin itself, as
>                      auxin levels and transport are not correlated with 
> xylem sap cytokinin
>                      concentrations in various intact and grafted mutant 
> and wild-type
>                      plants. Rms1 and Rms2 act in shoot and rootstock to 
> regulate the level
>                      or transport of graft-transmissible signals. Various 
> grafting studies
>                      and double mutant analyses have associated Rms2 with 
> the regulation of
>                      the shoot-to-root feedback signal. Rms1 is 
> associated with a second
>                      unknown graft-transmissible signal that is 
> postulated to move in the
>                      direction of root-to-shoot. Exogenous auxin appears 
> to interact with
>                      both of the signals regulated by Rms1 and Rms2 in 
> the inhibition of
>                      branching after decapitation. The action of Rms3 and 
> Rms4 is less
>                      apparent at this stage, although both appear to act 
> largely in the
>                      shoot.
> Class Descriptors:   NAL:                 QK745.P56
> SUBJECT(S)
> Identifier:          Ramosus mutants
>                      Pisum sativum.
>                      Shoots.
>                      Roots.
>                      Apical dominance.
>                      Branching.
>                      Buds.
>                      Leaves.
>                      Growth.
>                      Regulation.
>                      Signals.
>                      Auxins.
>                      Cytokinins.
>                      Mutants.
>                      Genotypes.
>                      Genetic variation.
>                      Literature reviews.
> Database:            AGRICOLA
>
> ------------------------------------------------------------------------
> Author(s):           House, S. ; Dieters, M. ; Johnson, M. ; Haines, R.
> Title:               Inhibition of orthotropic replacement shoots with
>                      auxin treatment on decapitated hoop pine, Araucaria 
> cunninghamii, for
>                      seed orchard management.
> Source:              New forests. 16, no. 3 (Nov 1998): p. 221-230.
>                      Additional Info:     Dordrecht : Kluwer Academic
>                      Publishers. Publishing Agencies: Non-US Imprint, not FAO
> Standard No:         ISSN:                0169-4286
> Language:            English
> Abstract:            Seed production in orchards of Araucaria
>                      cunninghamii involves grafting plagiotropic scions 
> (using a
>                      terminal-side graft) which exhibit a lateral growth 
> habit onto
>                      decapitated stock trees. Decapitation effectively 
> releases buds in the
>                      leaf axils of the stock plant from apical dominance 
> and orthotropic
>                      replacement shoots develop rapidly. To prevent 
> suppression of the
>                      grafted scion, frequent removal of orthotropic 
> shoots is necessary. The
>                      trial application of several plant auxins at 
> different concentrations
>                      to decapitated stock plants identified a suitable 
> technique to simulate
>                      apical dominance and temporarily suppress the 
> production of replacement
>                      shoots. The synthetic auxin IBA most effectively 
> controlled the
>                      production and growth rate of replacement shoots 
> with the least amount
>                      of damage to the treated tissues. Auxin application 
> apparently enhanced
>                      the growth of lateral branches in the whorl 
> immediately below the
>                      treated stem, suggesting that grafted scions would 
> not be adversely
>                      affected by auxin treatment. Routine application of 
> auxin to
>                      plagiotropic grafts will reduce maintenance costs in 
> seed orchards and
>                      clone banks of A. cunninghamii.
> Class Descriptors:   NAL:                 SD409.N48
> SUBJECT(S)
> Identifier:          Plagiotropic branches; Lateral branches
>                      Araucaria cunninghamii.
>                      Seed orchards.
>                      Shoots.
>                      Iaa.
>                      Iba.
>                      Seed production.
>                      Branches.
>                      Grafting.
>                      Queensland.
> Database:            AGRICOLA
>
> ------------------------------------------------------------------------
> Author(s):           Beveridge, C.A. ; Symons, G.M. ; Murfet, I.C. ;
>                      Ross, J.J. ; Rameau, C.
> Title:               The rms1 mutant of pea has elevated
>                      indole-3-acetic acid levels and reduced root-sap 
> zeatin riboside
>                      content but increased branching controlled by 
> graft-transmissible
>                      signal(s).
> Source:              Plant physiology. 115, no. 3 (Nov 1997): p.
>                      1251-1258.
>                      Additional Info:     Rockville, MD : American
>                      Society of Plant Physiologists, 1926- Publishing 
> Agencies: US Imprint,
>                      not USDA
> Standard No:         ISSN:                0032-0889
> Language:            English
> Abstract:            Rms1 is one of the series of five ramosus loci in
>                      pea (Pisum sativum L.) in which recessive mutant 
> alleles confer
>                      increased branching at basal and aerial vegetative 
> nodes. Shoots of the
>                      nonallelic rms1 and rms2 mutants are phenotypically 
> similar in most
>                      respects. However, we found an up to 40-fold 
> difference in root-sap
>                      zeatin riboside ([9R]Z) concentration between rms1 
> and rms2 plants.
>                      Compared with wild-type (WT) plants, the 
> concentration of [9R]Z in rms1
>                      root sap was very low and the concentration in rms2 
> root sap was
>                      slightly elevated. To our knowledge, the rms1 mutant 
> is therefore the
>                      second ramosus mutant (rms4 being the first) to be 
> characterized with
>                      low root-sap [9R]Z content. Like rms2, the apical 
> bud and upper nodes
>                      of rms1 plants contain elevated indole-3-acetic acid 
> levels compared
>                      with WT shoots. Therefore, the rms1 mutant 
> demonstrates that high shoot
>                      auxin levels and low root-sap cytokinin levels are 
> not necessarily
>                      correlated with increased apical dominance in pea. A
>                      grain-transmissible basis of action has been 
> demonstrated for both
>                      mutants from reciprocal grains between mutant and WT 
> plants. Branching
>                      was also largely inhibited in rms1 shoots when 
> grafted to rms2
>                      rootstocks, but was not inhibited in rms2 shoots 
> grafted to rms1
>                      rootstocks. These grafting results are discussed, 
> along with the
>                      conclusion that hormone-like signals other than 
> auxin and cytokinin are
>                      also involved.
> Class Descriptors:   NAL:                 450 P692
> SUBJECT(S)
> Identifier:          Pisum sativum.
>                      Roots.
>                      Sap.
>                      Buds.
>                      Plant composition.
>                      Zeatin riboside.
>                      Iaa.
>                      Quantitative analysis.
>                      Shoots.
>                      Apical dominance.
>                      Branching.
>                      Genetic regulation.
>                      Grafting.
>                      Rootstocks.
>                      Signals.
>                      Mutants.
>                      Wild strains.
>                      Genetic variation.
>                      Loci.
>                      Alleles.
>                      Phenotypes.
> Database:            AGRICOLA
>
> ------------------------------------------------------------------------
> Author(s):           Meilan, R.
> Title:               Floral induction in woody angiosperms.
> Source:              New forests. 14, no. 3 (Nov 1997): p. 179-202.
>                      Additional Info:     Dordrecht : Kluwer Academic
>                      Publishers. Publishing Agencies: Non-US Imprint, not FAO
> Standard No:         ISSN:                0169-4286
> Language:            English
> Abstract:            The long juvenile period of trees is a severe
>                      impediment to study of reproductive biology and 
> genetic inheritance,
>                      and is a serious constraint for traditional breeding 
> programs. Very
>                      little effort has been directed toward the 
> development of practical
>                      methods for inducing early flowering in most woody 
> angiosperms,
>                      particularly members of the genus Populus. This 
> review is intended to
>                      stimulate interest in, and provide direction for, 
> future research in
>                      this area. An emphasis is placed on techniques that 
> can be applied
>                      easily and inexpensively. Inductive treatments 
> discussed include:
>                      phytohormones (gibberellins, cytokinins, abscisic 
> acid, ethylene and
>                      auxin); growth retardants (paclobutrazol, 
> uniconazole, daminozide,
>                      chlormequat and cimecthacarb); physical constraints 
> (girdling, root
>                      restriction and shoot training); cultural conditions 
> (photoperiod,
>                      mineral nutrition, moisture stress and temperature); 
> and grafting.
>                      Recent reports on stimulation of flowering by 
> genetic transformation
>                      with floral homeotic genes are also described. 
> Several research avenues
>                      which appear promising are proposed for near-term study.
> Class Descriptors:   NAL:                 SD409.N48
> SUBJECT(S)
> Identifier:          Cimecthacarb
>                      Dicotyledons.
>                      Flowering.
>                      Induction.
>                      Genetic improvement.
>                      Breeding programs.
>                      Juvenility.
>                      Populus.
>                      Gibberellins.
>                      Cytokinins.
>                      Abscisic acid.
>                      Ethylene.
>                      Auxins.
>                      Paclobutrazol.
>                      Uniconazole.
>                      Daminozide.
>                      Chlormequat.
>                      Growth retardants.
>                      Girdling.
>                      Roots.
>                      Space requirements.
>                      Shoots.
>                      Photoperiod.
>                      Mineral nutrition.
>                      Water stress.
>                      Temperature.
>                      Grafting.
>                      Literature reviews.
> Accession No:        IND20630818
> Database:            AGRICOLA
>
> ------------------------------------------------------------------------
> Author(s):           Samuelson, A.I. ; Rickson, F.R. ; Mok, D.W.S. ;
>                      Mok, M.C.
> Title:               A temperature-dependent morphological mutant of
>                      tobacco.
> Source:              Planta. 201, no. 3 (1997): p. 303-310.
>                      Additional Info:     Berlin ; New York :
>                      Springer-Verlag, 1925- Publishing Agencies: Non-US 
> Imprint, not FAO
> Standard No:         ISSN:                0032-0935
> Language:            English
> Abstract:            A recessive temperature dependent shooty mutant
>                      (tds) of Nicotiana tabacum L. (W38) is described. 
> The mutant phenotype
>                      is expressed at low temperature (21 degrees C). 
> Mutant characteristics
>                      include thick, narrow leaves with abnormal mesophyll 
> cells, short
>                      internodes, and near absence of apical dominance. 
> Most plants remain
>                      vegetative and the occasional flower has petaloid 
> stamens. High
>                      temperature (30 degrees C) reverses the mutant 
> phenotype, with
>                      formation of normal leaves and restoration of apical 
> dominance.
>                      However, many flowers still have petaloid stamens. 
> Reciprocal grafting
>                      and auxin-cytokinin interaction experiments do not 
> suggest shifts in
>                      auxin-cytokinin balance. Overall this mutant bears 
> some resemblance to
>                      transgenic tobacco overexpressing homeodomain genes 
> from maize and
>                      Arabidopsis.
> Class Descriptors:   NAL:                 450 P693
> SUBJECT(S)
> Identifier:          Tds mutant
>                      Nicotiana tabacum.
>                      Phenotypes.
>                      Air temperature.
>                      Leaves.
>                      Mesophyll.
>                      Internodes.
>                      Apical dominance.
>                      Vegetative period.
>                      Flowers.
>                      Stamens.
>                      Pleiotropy.
>                      Mutants.
>                      Auxins.
>                      Cytokinins.
>                      Transgenic plants.
>                      Plasmid vectors.
>                      Oxidoreductases.
>                      Shoots.
>                      Histology.
>                      Genetic transformation.
>                      Plant morphology.
> Database:            AGRICOLA
>
> ------------------------------------------------------------------------
> Author(s):           Napoli, C.
> Title:               Highly branched phenotype of the petunia dad1-1
>                      mutant is reversed by grafting.
> Source:              Plant physiology. 111, no. 1 (May 1996): p. 27-37.
>                      Additional Info:     Rockville, MD : American
>                      Society of Plant Physiologists, 1926- Publishing 
> Agencies: US Imprint,
>                      not USDA
> Standard No:         ISSN:                0032-0889
> Language:            English
> Abstract:            The recessive dad1-1 allele conditions a highly
>                      branched growth habit resulting from a proliferation 
> of first- and
>                      second-order branches. Unlike the wild-type parent, 
> which has lateral
>                      branching delayed until the third or fourth leaf 
> node distal to the
>                      cotyledons, dad1-1 initiates lateral branching from 
> each cotyledon
>                      axil. In addition to initiating lateral branching 
> sooner than the wild
>                      type, dad1-1 sustains branching through more nodes 
> on the main shoot
>                      axis than the wild type. In keeping with a 
> propensity for branching at
>                      basal nodes, dad1-1 produces second-order branches 
> at the proximal-most
>                      nodes on first-order branches and small shoots from 
> accessory buds at
>                      basal nodes on the main shoot axis. Additional 
> traits associated with
>                      the mutation are late flowering, adventitious root 
> formation, shortened
>                      internodes, and mild leaf chlorosis. Graft studies 
> show that a dad1-1
>                      scion, when grafted onto wild-type stock, is 
> converted to a phenotype
>                      resembling the wild type. Furthermore, a small 
> wild-type interstock
>                      fragment inserted between a mutant root stock and a 
> mutant scion is
>                      sufficient to convert the dad1-1 scion from mutant 
> to a near wild-type
>                      appearance. The recessive dad1-1 phenotype combines 
> traits associated
>                      with cytokinin overexpression, auxin overexpression, 
> and gibberellin
>                      limitation, which suggests a complex interaction of 
> hormones in
>                      establishing the mutant phenotype.
> Class Descriptors:   NAL:                 450 P692
> SUBJECT(S)
> Identifier:          Decreased apical dominance mutants
>                      Petunia hybrida.
>                      Mutants.
>                      Apical dominance.
>                      Branching.
>                      Genetic regulation.
>                      Alleles.
>                      Recessive genes.
>                      Gene expression.
>                      Growth stages.
>                      Auxins.
>                      Grafting.
>                      Phenotypes.
>                      Genetic variation.
>                      Plant morphology.
>                      Stems.
>                      Internodes.
>                      Length.
> Database:            AGRICOLA
>
> ------------------------------------------------------------------------
> Author(s):           Glenn, D.M. ; Scorza, R.
> Title:               Reciprocal grafts of standard and dwarf peach
>                      alter dry-matter partitioning and root physiology.
> Source:              HortScience. 27, no. 3 (Mar 1992): p. 241-243.
>                      Additional Info:     Alexandria, Va. : American
>                      Society for Horticultural Science. Publishing 
> Agencies: US Imprint, not
>                      USDA
> Standard No:         ISSN:                0018-5345
> Language:            English
> Abstract:            In reciprocal grafts of tall ('Elberta' and
>                      'Loring') and dwarf ('Empress' and 'Juseito') peach 
> (Prunus persica
>                      Batsch.) phenotypes, we measured dry-matter 
> partitioning, resistance to
>                      root system water flow, and phytohormone content of 
> xylem exudate.
>                      Scion characteristics determined the phenotype and 
> growth
>                      characteristics of the tree irrespective of the 
> rootstock. Tall
>                      phenotypes had higher dry weight and lower root 
> resistance to water
>                      flow than dwarf phenotypes. Cytokinin-like activity 
> and auxin levels in
>                      xylem sap were higher in dwarf than in tall 
> phenotypes; whereas
>                      gibberellin-like activity was unaffected by either 
> rootstock or scion.
>                      The scion of peach influenced phytohormone levels 
> and resistance to
>                      water flow in the root system in addition to root 
> and shoot growth.
> Class Descriptors:   NAL:                 SB1.H6
> SUBJECT(S)
> Descriptor:          Prunus persica
>                      Rootstock scion relationships
>                      Dwarf cultivars
>                      Grafting
>                      Plant height
>                      Phenotypes
>                      Root systems
>                      Plant water relations
>                      Source sink relations
>                      Photosynthates
>                      Dry matter accumulation
> Database:            AGRICOLA