SUBCUTICULAR SECRETION BY CACTUS SEEDS IMPROVES GERMINATION BY MEANS OF RAPID UPTAKE AND DISTRIBUTION OF WATER

@article{Bregman1997SUBCUTICULARSB,
  title={SUBCUTICULAR SECRETION BY CACTUS SEEDS IMPROVES GERMINATION BY MEANS OF RAPID UPTAKE AND DISTRIBUTION OF WATER},
  author={Rob Bregman and Peter Graven},
  journal={Annals of Botany},
  year={1997},
  volume={80},
  pages={525-531}
}
Abstract We report a formerly unknown mechanism in seeds which improves germination under relatively dry conditions. During seed development of several South American cacti, epidermal cells produce proteinaceous material that appears to pass through ectodesmata in the outer cell wall and which accumulates under the cuticle. Once moistened, this secretory layer readily absorbs water and distributes it over the seed surface. It thus improves water uptake and ensures germination with the minimum… 

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References

SHOWING 1-10 OF 19 REFERENCES

The Plant Cuticle

There is good evidence that the cuticle is penetrated by the attacking pathogen before the sequential steps of disease development are halted by the active defense reactions of the challenged plant.

Factors Affecting Seed Germination in Three Annual Species from an Arid Region of Western Australia

Since arid regions are usually zones in which rain falls in sporadic heavy showers, plant growth is limited to the periods of high soil moisture content following these showers (e.g. see Koller

Structure and Macromolecular Composition of the Seed Coat of the Musaceae

The macromolecular ‘fingerprint’ of the seed coats of Musaceae showed unique components of aromatic phenols, which is characteristic at the family level and most complex within the Zingiberales.

Seed Germination in Desert Plants

The reader is provided with an understanding of the complex influences acting upon each seed, traced from initial development to germination stage, regarding germination preparation and the subsequent survival.

STUDIES ON OUTER EPIDERMAL CELL WALLS WITH MICROCHANNELS IN A XEROPHYTIC SPECIES

In the thick cutinized outer epidermal wall in the stem of Spartocytisus filipes radiating microchannels have been observed, and the micro-channels contain pectic substances and branch richly.

Handbuch der Pflanzenanatomie

THE separation of plant parts from the parent organs has been much studied in more or less isolated examples, but for the first time the very scattered results have been fully classified and

Forms of seed dispersal in Cactaceae

A survey is given of the possible types of seed dispersal in Cactaceae and a clear difference in the floating capacity between seeds with a small hilum cup and others with a large one is demonstrated.

Plant histochemistry and cytochemistry : an introduction

The blotting of fresh tissue sections onto nitrocellulose and the detection of enzyme activities on the blots for polyphenol oxidase, peroxidase, glycosidases, and this research article is aiming at histochemical investigation.

CITES Cactaceae checklist

This checklist gives information on a number of species of Cactaceae included in Appendices I and II of CITES regarding their identification, nomenclature and distribution. It is a first step towards

Raster - Elektronenmikroskopie der Epidermisoberfla $ chen von Spermatophyten

  • Tropische und Sub - tropische Pflanzenwelt
  • 1977