Differential responses of root and root hair traits of spring wheat genotypes to phosphorus deficiency in solution culture

doi:10.17221/485/2016-PSE

	Differential responses of root and root hair traits of spring wheat genotypes to phosphorus deficiency in solution culture
	Wang, Y. S.1,2; Jensen, L. S.2; Magid, J.2
刊名	PLANT SOIL AND ENVIRONMENT
	2016
卷号	62 期号:12 页码:540-546
关键词	hydroponics macronutrient Triticum aestivum L. nutrient accumulation root vigour
ISSN号	1214-1178
DOI	10.17221/485/2016-PSE
通讯作者	Wang, Y. S.
英文摘要	Root plasticity is important for plants to adapt to heterogeneous nutrient environments. The differential responses of six spring wheat genotypes were investigated; the plants had been subjected to deficient (2 mu mol) and abundant phosphorus (P) (200 mu mol) concentration. Root (length, surface area and diameter) and root hair traits (length and density), soil acidification and uptake of macro- and micronutrients were determined. Under low P supply all genotypes exhibited symptoms of P stress, such as poor shoot and root growth, starch accumulation and a release of substantial quantities of proton and acid from roots. Larger genotypic differences in root hair length and density than root length, surface area and diameter were observed. In response to P stress genotype April Bearded responded strongly by increasing its root hair density, while A35-213 and Hankkijan Tapio substantially increased root hair length. Other genotypes showed less positive responses or even negative ones in root hair traits. Thus, density of root hairs appears to be a more P-regulated and P-responsive trait than root hair length. April Bearded acidified the most and Hindy62 released most organic acid in response to P deficiency.
学科主题	Agronomy
语种	英语
出版者	CZECH ACADEMY AGRICULTURAL SCIENCES
WOS记录号	WOS:000388411000002
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/105447]
专题	农业环境与可持续发展研究所
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 2.Univ Copenhagen, Dept Plant & Environm Sci, Frederiksberg C, Denmark
推荐引用方式 GB/T 7714	Wang, Y. S.,Jensen, L. S.,Magid, J.. Differential responses of root and root hair traits of spring wheat genotypes to phosphorus deficiency in solution culture[J]. PLANT SOIL AND ENVIRONMENT,2016,62(12):540-546.
APA	Wang, Y. S.,Jensen, L. S.,&Magid, J..(2016).Differential responses of root and root hair traits of spring wheat genotypes to phosphorus deficiency in solution culture.PLANT SOIL AND ENVIRONMENT,62(12),540-546.
MLA	Wang, Y. S.,et al."Differential responses of root and root hair traits of spring wheat genotypes to phosphorus deficiency in solution culture".PLANT SOIL AND ENVIRONMENT 62.12(2016):540-546.