Drought rhizogenesis

Drought rhizogenesis is an adaptive root response to drought stress. New emerging roots are short, swollen, and hairless, capable of retaining turgor pressure and resistant to prolonged desiccation. Upon rewatering, they are capable of quickly forming an absorbing root surface and hair growth. This rhizogenesis has been called a drought tolerance strategy for after-stress recovery.^[1][2]

Structural features

These drought induced short roots can be found on either both the tap root and lateral roots or on lateral roots only. These patterns are mostly likely a reflection of the plants' individual ability to maintain meristematic activity under low water potential.^[3]

This morphological phenomenon was found in some families of Angiosperm dicot perennials.

References

1. ^ Vartanian, N. (1996), "The Drought Rhizogenesis", in Waisel, Yoav; Eshel, Amram; Kafkafi, Uzi, Plant Roots: The Hidden Half, CRC Press, March 2002, pp. 471–482, ISBN 0824706315 
2. ^ Vartanian, N., "Some aspects of structural and functional modifications induced by drought in root systems", Plant Soil 63 (1981): 83-92.
3. ^ Balestrini, S. and N. Vartanian, "Rhizogenic activity during water stress-induced senescence in Brassica napus var. oleifera", Physiologie Vegetale 21, volume 2 (1983a): 269-277.

This botany article is a stub. You can help Wikipedia by expanding it.v · Categories: Drought-tolerant plants Botany stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем решить контрольную работу Drought Research Initiative Drought deciduous Look at other dictionaries: Root — This article is about the part of a plant. For other uses, see Root (disambiguation). Primary and secondary roots in a cotton plant In vascular plants, the root is the organ of a plant that typically lies below the surface of the soil. This is… …   Wikipedia 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”