NDLI: Effects of phosphorus stress on the root morphology and root exudates in different sugar beet genotypes

Content Provider	IEEE Xplore Digital Library
Author	Jianchao Zhou Xiaochun Wang Yanhong Deng Yan Wang
Copyright Year	2011
Description	Author affiliation: Heilongjiang University, Harbin 150080, China (Jianchao Zhou; Xiaochun Wang; Yanhong Deng; Yan Wang)
Abstract	Phosphorus deficiency was induced in sugar beet plants (Beta Vulgaris L., ‘var. 14’, ‘var. 17’ and ‘var. 20’ with different resistance ability to phosphorus stress), cultured hydroponically and sandily under standardized environmental conditions, by removing phosphorus from the nutrient supply at the seedling stage. Root morphology, $H^{+}$ excretion and organic acid in rhizosphere were investigated. The main results were showed as following: the average length of roots and the ratio of root to shoot in all genotypes were increased significantly (p<0.05), among which, the decreasing range of ‘var. 14’ was the biggest one; sugar beet root mainly excreted oxalic, lactic, maleic acid and trans-butenedioic acid, among which, the first two kinds of the organic acids were the main ingredient, and the phenomena of the significant increase in the secretion amount of those two kinds acids was only appeared in ‘var. 20’ with higher resistance to phosphorus stress; phosphorus deficiency stimulated the environment changed in root vicinity of sugar beet, and showed as an increase of the $H^{+}$ secretion in all the genotypes used in the experiment, but the increased amount of $H^{+}$ were genetic dependent, i.e. ‘var.20’>‘var.17’>‘var.14’.
Starting Page	1151
Ending Page	1154
File Size	291846
Page Count	4
File Format	PDF
ISBN	9781424491728
e-ISBN	9781424491711
DOI	10.1109/RSETE.2011.5964484
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-24
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resistance Reactive power Root exudates Phosphorus deficiency Root morphology Morphology Soil Sugar beet Sugar industry Physiology Stress
Content Type	Text
Resource Type	Article

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