Effect of Drought Stress During Flowering Stage on Starch Accumulation and Starch Synthesis Enzymes in Sorghum Grains

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	Effect of Drought Stress During Flowering Stage on Starch Accumulation and Starch Synthesis Enzymes in Sorghum Grains
其他题名	Effect of Drought Stress During Flowering Stage on Starch Accumulation and Starch Synthesis Enzymes in Sorghum Grains
	Yi Bing 1; Zhou Yufei 1; Gao Mingyue 1; Zhang Zhuang 1; Han Yi 1; Yang Guangdong 2; Xu Wenjuan 1; Huang Ruidong 1
	2014
发表期刊	JOURNAL OF INTEGRATIVE AGRICULTURE
ISSN	2095-3119
卷号	13 期号:11 页码:2399-2406
摘要	Starch content is a key factor affecting sorghum grain quality. The research of sorghum grain starch accumulation and the related synthesis enzyme activities has great significance for understanding the mechanisms of starch metabolisms. The differences between a high and a low starch content sorghum hybrids (Tieza 17 and Liaoza 11, respectively) in grain starch accumulation and the related synthesis enzyme activities were assessed following imposition of water stress during flowering stage. The total starch, amylase and amylopectin accumulation all decreased at the mid-late stage of grain filling under drought stress during flowering stage. The maximum and mean accumulation rates also decreased. During grain filling, soluble starch synthase (SSS), granule-bound starch synthase (GBSS), starch branching enzyme (SBE), and starch debranching enzymes (DBE) activities were all affected, though differently. Drought stress reduced starch accumulation in a larger extent for Tieza 17 than Liaoza 11. Drought stress during flowing stage reduced starch synthesis enzyme activities, thus reducing starch accumulation in grains, and the differences between starch components were also demonstrated under drought stress.
其他摘要	Starch content is a key factor affecting sorghum grain quality. The research of sorghum grain starch accumulation and the related synthesis enzyme activities has great signiifcance for understanding the mechanisms of starch metabolisms. The differences between a high and a low starch content sorghum hybrids (Tieza 17 and Liaoza 11, respectively) in grain starch accumulation and the related synthesis enzyme activities were assessed following imposition of water stress during lfowering stage. The total starch, amylase and amylopectin accumulation all decreased at the mid-late stage of grain iflling under drought stress during lfowering stage. The maximum and mean accumulation rates also decreased. During grain iflling, soluble starch synthase (SSS), granule-bound starch synthase (GBSS), starch branching enzyme (SBE), and starch debranching enzymes (DBE) activities were all affected, though differently. Drought stress reduced starch accumulation in a larger extent for Tieza 17 than Liaoza 11. Drought stress during lfowing stage reduced starch synthesis enzyme activities, thus reducing starch accumulation in grains, and the differences between starch components were also demonstrated under drought stress.
关键词	DEVELOPING ENDOSPERM RICE ENDOSPERM WHEAT BIOSYNTHESIS LOCALIZATION PULLULANASE ISOAMYLASE sorghum drought stress starch accumulation enzyme activity
收录类别	CSCD
语种	英语
资助项目	[Earmarked Fund for Modern Agro-Industry Technology Research System, China]
CSCD记录号	CSCD:5305123
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/152615
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.Heilongjiang Institute Agr Sci, Keshan Res Institute, Qiqihar 161606, Peoples R China
推荐引用方式 GB/T 7714	Yi Bing,Zhou Yufei,Gao Mingyue,et al. Effect of Drought Stress During Flowering Stage on Starch Accumulation and Starch Synthesis Enzymes in Sorghum Grains[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2014,13(11):2399-2406.
APA	Yi Bing.,Zhou Yufei.,Gao Mingyue.,Zhang Zhuang.,Han Yi.,...&Huang Ruidong.(2014).Effect of Drought Stress During Flowering Stage on Starch Accumulation and Starch Synthesis Enzymes in Sorghum Grains.JOURNAL OF INTEGRATIVE AGRICULTURE,13(11),2399-2406.
MLA	Yi Bing,et al."Effect of Drought Stress During Flowering Stage on Starch Accumulation and Starch Synthesis Enzymes in Sorghum Grains".JOURNAL OF INTEGRATIVE AGRICULTURE 13.11(2014):2399-2406.