Cholodny went hypothese
WebAbstract. The existence of different auxin sensitivities in epidermal and subepidermal tissues (KV Thimann, CL Schneider 1938 Plant Physiol 25: 627-641) suggests a refinement to …
Cholodny went hypothese
Did you know?
Web20世纪20年代苏联科学家乔罗尼(N. Cholodny)和荷兰科学家文特(F. W. Went)提出的解释重力和单侧光诱导植物器官弯曲生长机制模型。 在重力和单侧光的诱导下，生长素在植物器官伸长区发生单向运输，单侧较高浓 … WebThese ideas were improved upon by Boysen-Jensen and Paál and were later developed into the Cholodny-Went hypothesis that tropisms were caused by the asymmetric distribution of a growth-promoting substance. These observations led to many efforts to identify this elusive growth-promoting substance, which we now know as auxin.
WebThe Cholodny–Went hypothesis suggested auxin as the main mediator of gravitropism. So far, ample evidence has been gathered with regard to auxin asymmetrical detection, polar and lateral WebDec 1, 1996 · The Cholodny-Went hypothesis holds that gravitropic curvature of a growing plant organ depends on regulated transport of the plant hormone auxin; new studies of the agravitropic mutant aux1 of Arabidopsis provide strong evidence in support of this hypothesis. Publication types Review MeSH terms Arabidopsis / metabolism
WebMay 1, 1992 · The cholodny-went “theory”. K. Thimann. Published 1 May 1992. Environmental Science. Plant Molecular Biology Reporter. Editor's Note. A paper by Li et … WebJul 28, 2005 · The Cholodny–Went hypothesis that is traditionally used to explain gravi- and phototropic bending is based on the assumptions that a redistribution of auxin …
WebJan 1, 2013 · Since its introduction, the Cholodny–Went hypothesis has received wide acceptance and experimental support (Whippo and Hangarter, 2006; Holland et al., 2009). For phototropism, the …
WebWinslow Briggs tested the Cholodny-Went hypothesis. Briggs removed the tip of grass coleoptiles, divided the tips with a thin piece of mica, and measured the levels of auxin … md houston txWebMay 26, 2015 · Although central to the Cholodny-Went hypothesis, a complete cellular assessment of these lateral auxin movements and how they are regulated is still lacking. However, much progress has been made in the last decade or so in defining key signalling events associated with phototropism using the dicotyledonous genetic model Arabidopsis … md-hpbt01 headphones manualWebThe Cholodny–Went hypothesis holds that gravitropic curvature of a growing plant organ depends on regulated transport of the plant hormone auxin; new studies of … md how to writeWebJul 1, 1987 · Abstract The existence of different auxin sensitivities in epidermal and subepidermal tissues (KV Thimann, CL Schneider 1938 Plant Physiol 25: 627-641) suggests a refinement to the Cholodny-Went theory which overcomes some of the difficulties associated with it. md-hpbt01 headphonesWebAn important elaboration on the Cholodny-Went theory is the auxin fountain model, that proposed how differential auxin levels in the root ... the ecological function, if any, is still uncertain. One hypothesis for the ecological relevance of phonotropism is long distance locating of water in soils. Preliminary results show that roots of ... mdh paxlovid pharmacyWebJul 9, 2002 · Again, it has not been demonstrated that pin3 roots fail to establish asymmetric auxin gradients in the cap or elongation zone, but the circumstantial evidence suggests that PIN3 redistribution may represent the first visualisation of the lateral polarisation envisaged by the Cholodny–Went hypothesis. mdh pediatricsWeb阅读量： 53 作者： 刘承宪 摘要： 本文着重介绍生长素在植物向重性生长反应中作用的研究进展,存在问题和研究方向. 关键词： 植物向重性 重力生物学 生长素 DOI： … mdh pfizer training