Effect of sexual systems and dichogamy on levels of abortion and biomass allocation in plant reproductive structures

@article{Ramrez1997EffectOS,
  title={Effect of sexual systems and dichogamy on levels of abortion and biomass allocation in plant reproductive structures},
  author={Nelson Ram{\'i}rez and Paul E. Berry},
  journal={Botany},
  year={1997},
  volume={75},
  pages={457-461},
  url={https://api.semanticscholar.org/CorpusID:85172598}
}
Results indicate that hermaphroditic plants do not compensate for their inability to independently control the number of male and female flowers by producing an excess of flowers that function mainly as pollen donors.
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Ovule and Seed Abortion in Japanese Morning Glory (Ipomoea nil (L.) Roth.)

It is concluded that the high percentage of abortion that leads to low seed production in Japanese morning glory is attributable to the lack of fertilization and zygote formation.

Is allocation among reproductive tissues coordinated with seed size?

It is shown that relative investment in pollen‐attraction versus provisioning tissues and in successful versus discarded ovules are also associated with seed mass, and the seed mass spectrum among angiosperms is therefore connected with a spectrum of reproductive allocation strategies.

Unfertilized ovules of Epilobium obcordatum (Onagraceae) continue to grow in developing fruits.

It is concluded that caution is necessary when attempting to infer ovule fertilization histories from the appearances of ovules in developing and mature fruits, as diffusible hormones produced by developing seeds cause nearby unfertilized ovules to grow.

Size-dependent flowering behavior and heat production of a sequential hermaphrodite, Symplocarpus renifolius (Araceae).

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Coordinated shifts in allocation among reproductive tissues across 14 coexisting plant species

It is already well-established that the seed size axis aligns with the colonization-competition life history spectrum; here it is shown that relative construction costs of pollen-attraction versus provisioning tissues and seedset are also part of this trajectory, expanding the understanding of the relatives sizes of floral and fruiting structures observed across angiosperms.

Pollen viability, germination, and seed setting of Nelumbo nucifera

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Reproductive biology of Amasonia campestris was studied in the Venezuelan Central Llanos and the number of opened flowers per inflorescence varies between 1 and 5 (X X).

16 References

SEXUAL STRATEGIES IN PLANTS

Summary It is postulated that in one reproductive session the level of maternal expenditure of an angiosperm plant is determined by a temporal series of controls on the number of potential fruit in…

On the Importance of Male Fitness in Plants: Patterns of Fruit-Set

The male function hypothesis predicts a lower fruit-to-flower ratio for hermaphrodites as compared to monoecious or dioecious plants, and the self-incompatibility hypothesis is tested and rejected on the basis of fruit-set patterns in self-Incompatibility andromonoecious species.

Flower and Fruit Biology in Southern Spanish Mediterranean Shrublands

Flower and fruit biology was studied in a coastal, southern Spanish scrub community composed of 30 plant taxa, finding that sprouting taxa had, on average, lower fruit production than those that were unable to sprout.

COSTS AND BENEFITS OF FLOWER ABSCISSION AND FRUIT ABORTION IN ASCLEPIAS SPECIOSA

Results suggest that pods differ in ability to compete for limiting resources and through selective elemination of the poorest competitors (the slower growing, smaller pods) at an early age, pod abortion may result in survival of the fittest offspring.

THE EVOLUTION OF INFLORESCENCE SIZE IN ASCLEPIAS (ASCLEPIADACEAE)

This study centers on three sources of reproductive failure: failure of pod initiation, failure of fruit maturation, and failure to donate pollen, and focuses on intraspecific comparisons.

The avoidance of interference between the presentation of pollen and stigmas in angiosperms I. Dichogamy

It is suggested that the separation of pollen and stigmas acts in general to reduce this self-interference and it often also reduces self-fertilisation.

Fruit Set, Herbivory, Fruit Reduction, and the Fruiting Strategy of Catalpa Speciosa (Bignoniaceae)

The overall pattern of fruit reduction is interpreted as an adaptive trade-off between seed number and seed quality which permits the parent plant to match fruit production with available resources.

PATTERNS OF FRUIT‐SET: WHAT CONTROLS FRUIT‐FLOWER RATIOS IN PLANTS?

    S. Sutherland
    Biology
    Evolution; international journal of organic…
  • 1986
The results indicate that the selective‐abortion and bet‐hedging hypotheses may be important factors contributing to the low fruit‐set in self‐incompatible plants, while the male‐function hypothesis may explain the lower fruit‐flower ratios in hermaphrodites.

Patterns of resource allocation in fleshy fruits of nine European tall-shrub species

Within-fruit reproductive allocation was studied in the nine major fleshy-fruited shrub species of southern England. The partitioning of dry mass and nitrogen between flesh and stone, and between the…

Produccion y costo de frutos y semillas entre formas de vida

The correlations between the characteristics of reproductive structures and the abortion levels revealed an increase of ovules aborted with the weight of fruits and seeds, the number of seeds per fruit and flower, fruit weight/flower weight ratio and seed per fruit weight / flower weight ratio from annual herbs to trees.