Dominance among fruits/sinks and the search for a correlative signal

The present problems with hormonal signals transferring dominance effects are reviewed and, as a new hypothesis, it is stated that the sequence of sink development may establish the dominance effect. ‘Primigenic dominance’ (PD) is suggested to describe this kind of correlative inhibition, in which the earlier developed sink inhibits later developed organs. New results show that the polar IAA export of the earlier developed sink inhibits the IAA export of later developed sinks. This ‘autoinhibition’ occurs at ‘junctions’, where auxin streams from various sinks meet. It is suggested that this depressed IAA-export of the subordinated fruit/sink acts as the signal that leads to inhibited development. This hypothesis avoids some of the problems related with other hypotheses, such as the requirement of a multidirectional signal. Primigenic dominance is a unifying hypothesis, which can be applied to most correlative dominance phenomena in the plant. Primigenic dominance is less complicated than the traditional ‘apical dominance’ (AD) hypothesis, because it does not require secondary messengers.

[1]  H. Beringer,et al.  The role of hormones in yield formation. , 1980 .

[2]  A. Leopold.  CONTEMPLATIONS ON HORMONES AS BIOLOGICAL REGULATORS , 1987 .

[3]  H. Marschner,et al.  Allocation of Photosynthate to Individual Tubers of Solanum tuberosum L.III. RELATIONSHIP BETWEEN GROWTH RATE OF INDIVIDUAL TUBERS, TUBER WEIGHT AND STOLON GROWTH PRIOR TO TUBER INITIATION , 1986 .

[4]  I. Tamàs,et al.  Role of indoleacetic Acid and abscisic Acid in the correlative control by fruits of axillary bud development and leaf senescence. , 1981, Plant physiology.

[5]  B. Loveys.  Abscisic acid transport and metabolism in grapevine (Vitis vinifera L.) , 1984 .

[6]  S. P. Burg,et al.  Ethylene formation in pea seedlings; its relation to the inhibition of bud growth caused by indole-3-acetic Acid. , 1968, Plant physiology.

[7]  H. Stigter.  Growth relations between individual fruits, and between fruits and roots in cucumber. , 1969 .

[8]  L. Noodén.  Integration of soybean pod development and monocarpic senescence , 1984 .

[9]  J. D. Quinlan,et al.  The Influence of Shoot Competition on Fruit Retention and Cropping of Apple Trees , 1971 .

[10]  C. D. Dybing,et al.  Factors Affecting Shedding of Flowers in Soybean (Glycine max (L.) Merrill) , 1980 .

[11]  S. Rood,et al.  Ethylene, indoleacetic acid and apical dominance in peas: A reappraisal , 1983 .

[12]  L. Eliasson.  Factors affecting the inhibitory effect of indolylacetic acid on root formation in pea cuttings , 1981 .

[13]  M. E. Foley,et al.  Correlative Inhibition and Dormancy in Root Buds of Leafy Spurge (Euphorbia esula) , 1987, Weed Science.

[14]  F. Bangerth.  THINNING OF APPLE FRUITS AND RELATIONS TO ENDOGENOUS HORMONES , 1986 .

[15]  I. Tamàs,et al.  Effect of Older Fruits on Abortion and Abscisic Acid Concentration of Younger Fruits in Phaseolus vulgaris L. , 1979, Plant physiology.

[16]  McIntyre Gi.  The role of nutrition in apical dominance. , 1977 .

[17]  R. V. Steveninck.  Factors Affecting the Abscission of Reproductive Organs in Yellow Lupins ( Lupinus luteus L.) III. ENDOGENOUS GROWTH SUBSTANCES IN VIRUS-INFECTED AND HEALTHY PLANTS AND THEIR EFFECT ON ABSCISSION , 1959 .

[18]  W. Aufhammer,et al.  Dry matter accumulation at specific pod positions on field bean (Vicia faba L.) plants and possible relations with indoleacetic acid and abscisic acid levels , 1988, Plant Growth Regulation.

[19]  B. Coombe,et al.  The Effect of Removing Leaves, Flowers and Shoot Tips on Fruit-Set in Vitis Vinifera L. , 1962 .

[20]  T. K. Prasad,et al.  Gibberellin-enhanced elongation of inverted Pharbitis nil shoot prevents the release of apical dominance. , 1987, Plant science : an international journal of experimental plant biology.

[21]  P. Wareing,et al.  Apical Dominance in Phaseolus vulgaris L. , 1984 .

[22]  R. Aloni,et al.  Differentiation of Vascular Tissues , 1987 .

[23]  J. Bohner,et al.  Effects of fruit set sequence and defoliation on cell number, cell size and hormone levels of tomato fruits (Lycopersicon esculentum Mill.) within a truss , 1988, Plant Growth Regulation.

[24]  R. Snow.  ON THE NATURE OF CORRELATIVE INHIBITION , 1937 .

[25]  J. Hillman.  Apical Dominance and Correlations by Hormones , 1986 .

[26]  J. Fisher.  DEVELOPMENTAL MORPHOLOGY OF THE INFLORESCENCE IN HEXAPLOID WHEAT CULTIVARS WITH AND WITHOUT THE CULTIVAR NORIN 10 IN THEIR ANCESTRY , 1973 .

[27]  T. Sage,et al.  Flowering and Fruiting Patterns of Phaseolus vulgaris L. , 1987, Botanical Gazette.

[28]  J. Carbonell,et al.  Fruit-set of unpollinated ovaries of Pisum sativum L. , 1980, Planta.

[29]  E. Keller,et al.  Auxins, ABA and gibberellin-like activity in abscising and non-abscising flowers and pods of Vicia faba L. , 1988, Plant Growth Regulation.

[30]  T. Sachs.  The Control of the Patterned Differentiation of Vascular Tissues , 1981 .

[31]  J. Couot-Gastelier.  Etude de quelques modalités de la croissance des bourgeons axillaires de la fève Vicia faba L. liberés de la contrainte apicale , 1978 .

[32]  W. W. Schwabe,et al.  Parthenocarpic fruit in Cox’s Orange Pippin apples, obtained without hormones , 1975 .

[33]  K. Thimann,et al.  Studies on the Growth Hormone of Plants: III. The Inhibiting Action of the Growth Substance on Bud Development. , 1933, Proceedings of the National Academy of Sciences of the United States of America.

[34]  J. Patrick.  ARE HORMONES INVOLVED IN ASSIMILATE TRANSPORT , 1987 .

[35]  L. Ho,et al.  Fruit Position and Fruit Set Sequence in a Truss as Factors Determining Final Size of Tomato Fruits , 1984 .

[36]  A. Everat‐Bourbouloux.  Distribution of free and bound forms of cis-trans and trans-trans abscisic acid in broad-bean plants in relation to apical dominance , 1987 .

[37]  J. Hillman.  18 – ETHYLENE, LATERAL BUD GROWTH AND INDOLE-3-ACETIC ACID TRANSPORT , 1985 .

[38]  L. Ho,et al.  The effect of assimilate supply on fruit growth and hormone levels in tomato plants , 1982, Plant Growth Regulation.

[39]  I. Rylski,et al.  Effects of floral position and cluster size on fruit development in eggplant , 1983 .

[40]  G. F. Katekar,et al.  Auxin Transport Inhibitors: III. Chemical Requirements of a Class of Auxin Transport Inhibitors. , 1977, Plant physiology.

[41]  N. Porter.  The Role of Abscisic Acid in Flower Abscission of Lupinus luteus , 1977 .

[42]  R. Hertel.  The Mechanism of Auxin Transport as a Model for Auxin Action , 1983 .

[43]  M. G. Mullins,et al.  AUXIN, ETHYLENE AND KINETIN IN A CARRIER‐PROTEIN MODEL SYSTEM FOR THE POLAR TRANSPORT OF AUXINS IN PETIOLE SEGMENTS OF PHASEOLUS VULGARIS , 1969 .

[44]  A. Everat‐Bourbouloux,et al.  Endogenous abscisic acid levels in stems and axillary buds of intact or decapitated broad-bean plants (Vicia faba L.) , 1982 .

[45]  D. G. Morgan,et al.  Defoliation and its Effects on Pod and Seed Development in Oil Seed Rape (Brassica napus L.) , 1985 .

[46]  D. J. Tucker.  Apical dominance in the tomato: The possible roles of auxin and abscisic acid , 1978 .

[47]  S. Gilbert,et al.  Basal Localization of the Presumptive Auxin Transport Carrier in Pea Stem Cells , 1983, Science.

[48]  H. Marschner,et al.  Relationship between polar basipetal auxin transport and acropetal Ca2+ transport into tomato fruits , 1987 .

[49]  L. Ho.  Control of Import into Tomato Fruits , 1980 .

[50]  Ben W. Smith.  ARACHIS HYPOGAEA. REPRODUCTIVE EFFICIENCY , 1954 .

[51]  L. Ho.  The Relationship Between the Rates of Carbon Transport and of Photosynthesis in Tomato Leaves , 1976 .

[52]  R. Snow.  The Correlative Inhibition of the Growth of Axillary Buds , 1925 .

[53]  O. Ojehomon.  Effect of continuous removal of open flowers on the seed yield of two varieties of cowpea, Vigna unguiculata (L.) Walp. , 1970, The Journal of Agricultural Science.

[54]  K. Oparka.  Changes in Partitioning of Current Assimilate During Tuber Bulking in Potato (Solarium tuberosum L.) cv Maris Piper , 1985 .

[55]  M. Goldsmith,et al.  The Polar Transport of Auxin , 1977 .