Gravitropisms and reaction woods of forest trees - evolution, functions and mechanisms

No claim to US Government works New Phytologist © 2016 New Phytologist Trust.

Détails bibliographiques
Publié dans:The New phytologist. - 1990. - 211(2016), 3 vom: 15. Aug., Seite 790-802
Auteur principal: Groover, Andrew (Auteur)
Format: Article en ligne
Langue:English
Publié: 2016
Accès à la collection:The New phytologist
Sujets:Journal Article Review Research Support, U.S. Gov't, Non-P.H.S. compression wood genomics poplar tension wood wood development
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520 |a No claim to US Government works New Phytologist © 2016 New Phytologist Trust. 
520 |a Contents 790 I. 790 II. 792 III. 795 IV. 797 V. 798 VI. 800 VII. 800 800 References 800 SUMMARY: The woody stems of trees perceive gravity to determine their orientation, and can produce reaction woods to reinforce or change their position. Together, graviperception and reaction woods play fundamental roles in tree architecture, posture control, and reorientation of stems displaced by wind or other environmental forces. Angiosperms and gymnosperms have evolved strikingly different types of reaction wood. Tension wood of angiosperms creates strong tensile force to pull stems upward, while compression wood of gymnosperms creates compressive force to push stems upward. In this review, the general features and evolution of tension wood and compression wood are presented, along with descriptions of how gravitropisms and reaction woods contribute to the survival and morphology of trees. An overview is presented of the molecular and genetic mechanisms underlying graviperception, initial graviresponse and the regulation of tension wood development in the model angiosperm, Populus. Critical research questions and new approaches are discussed 
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650 4 |a Review 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a compression wood 
650 4 |a genomics 
650 4 |a poplar 
650 4 |a tension wood 
650 4 |a wood development 
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