Crown sprouting

Crown sprouting

Crown sprouting is the ability of a plant to regenerate its shoot system after destruction (usually by fire) by activating dormant vegetative structures to produce regrowth from the root crown (the junction between the root and shoot portions of a plant).[1] These dormant structures take the form of lignotubers or basal epicormic buds. Plant species that can accomplish crown sprouting are called crown resprouters (distinguishing them from stem or trunk resprouters) and, like them, are characteristic of fire-prone habitats such as chaparral.[2]

In contrast to plant fire survival strategies that decrease the flammability of the plant, or by requiring heat to germinate, crown sprouting allows for the total destruction of the above ground growth. Crown sprouting plants typically have extensive root systems in which they store nutrients allowing them to survive during fires and sprout afterwards. Early researchers suggested that crown sprouting species might lack species genetic diversity; however, research on Gondwanan shrubland[clarification needed] suggests that crown sprouting species have similar genetic diversity to seed sprouters.[3] Some genera, such as Arctostaphylos and Ceanothus, have species that are both resprouters and not, both adapted to fire.

California Buckeye, Aesculus californica, is an example of a western USA tree which can regenerate from its root crown after a fire event, but can also regenerate by seed.[4]

See also

Line notes

  1. ^ A.W. Sampson
  2. ^ Knox, Kirsten J. E.; Briggs, Morrison, David A. (2005). "Effects of inter-fire intervals on the reproductive output of resprouters and obligate seeders in the Proteaceae". Austral Ecology 3 (2): 407–413. 
  3. ^ W.J. Bond, 2003
  4. ^ C.M. Hogan, 2008

References


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Fire ecology — The Old Fire burning in the San Bernardino Mountains (image taken from the International Space Station) Fire ecology is concerned with the processes linking the natural incidence of fire in an ecosystem and the ecological effects of this fire.… …   Wikipedia

  • Coppicing — Coppice redirects here. For the locality in Oldham, see Coppice, Greater Manchester. For Bahamian coppice forests, see Bahamian dry forests. A recently coppiced alder stool in Hampshire …   Wikipedia

  • Sequoia sempervirens — S. sempervirens along US 199 Conservation status …   Wikipedia

  • Sequoia — Taxobox name = Sequoia sempervirens status = VU | status system = IUCN3.1 trend = down image width = 250px image caption = Sequoia sempervirens in Redwood National and State Parks regnum = Plantae divisio = Pinophyta classis = Pinopsida ordo =… …   Wikipedia

  • Osiris — For other uses, see Osiris (disambiguation). Osiris Osiris, lord of the dead. His green skin symbolizes re birth. God of the afterlife Name in hieroglyphs …   Wikipedia

  • Osiris — Osirian /oh suy ree euhn/, adj. /oh suy ris/, n. Egyptian Relig. the king and judge of the dead, the husband and brother of Isis, and father (or brother) of Horus, killed by Set but later resurrected (after Horus killed Set): usually depicted as… …   Universalium

  • Debate on the monarchy in Canada — Debate between monarchists and republicans in Canada has been taking place since before the country s Confederation in 1867, though it has rarely been of significance since the rebellions of 1837.[1] Open support for republicanism only came from… …   Wikipedia

  • India — /in dee euh/, n. 1. Hindi, Bharat. a republic in S Asia: a union comprising 25 states and 7 union territories; formerly a British colony; gained independence Aug. 15, 1947; became a republic within the Commonwealth of Nations Jan. 26, 1950.… …   Universalium

  • Mockernut Hickory — Taxobox name = Mockernut Hickory image width = 240px image caption = regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Fagales familia = Juglandaceae genus = Carya species = C. tomentosa binomial = Carya tomentosa binomial… …   Wikipedia

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”