The rice RCN1/OsABCG5 mutation is associated with root de-velopment in response to nutrient shortage

IF 1 Q3 PLANT SCIENCES Plant Root Pub Date : 2012-01-01 DOI:10.3117/PLANTROOT.6.28
A. Ureshi, Shuichi Matuda, Emiko Ohashi, K. Onishi, I. Takamure, K. Kato
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引用次数: 7

Abstract

Plants constantly sense changes in their environment. When nutrient elements are scarce, plants often allocate a greater proportion of their biomass to the root system. In the present study, we characterized the early root development of rice reduced culm number (rcn) mutants under standard growth conditions. Short lateral root length was consistent in five rcn mutants, and the remaining root traits varied between the rcn mutants. Subsequently, we characterized the effects of rcn1 mutation in response to nutrient shortage. Root development, involving the elongation of seminal, crown, and lateral roots and branching of the lateral roots, was promoted in wild type in response to nutrient shortage. However, in rcn1 mutants, crown root elongation was constant and lateral root branching was reduced in response to nutrient shortage. The present results indicate that RCN1/OsABCG5 is associated with root development in response to nutrient shortage.
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水稻RCN1/OsABCG5突变与根系在营养短缺条件下的发育有关
植物不断地感知环境的变化。当营养元素缺乏时,植物通常会将更大比例的生物量分配给根系。在本研究中,我们对标准生长条件下水稻茎数减少(rcn)突变体的早期根系发育进行了研究。5个rcn突变体的侧根长度较短是一致的,其余根系性状在rcn突变体之间存在差异。随后,我们描述了rcn1突变对营养短缺的影响。野生型的根发育,包括种子、树冠、侧根的伸长和侧根的分枝,在营养缺乏的情况下得到促进。然而,在rcn1突变体中,由于营养缺乏,冠根伸长保持不变,侧根分枝减少。研究结果表明,RCN1/OsABCG5与根系发育有关,是根系对养分缺乏的响应。
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来源期刊
Plant Root
Plant Root PLANT SCIENCES-
CiteScore
1.50
自引率
0.00%
发文量
2
期刊介绍: Plant Root publishes original papers, either theoretical or experimental, that provide novel insights into plant roots. The Journal’s subjects include, but are not restricted to, anatomy and morphology, cellular and molecular biology, biochemistry, physiology, interactions with soil, mineral nutrients, water, symbionts and pathogens, food culture, together with ecological, genetic and methodological aspects related to plant roots and rhizosphere. Work at any scale, from the molecular to the community level, is welcomed.
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