Size effects of chitooligomers on the growth and photosynthetic characteristics of wheat seedlings

	Size effects of chitooligomers on the growth and photosynthetic characteristics of wheat seedlings
	Zhang, Xiaoqian 1,2; Li, Kecheng 1; Liu, Song 1; Xing, Ronge1 ; Yu, Huahua1 ; Chen, Xiaolin 1; Li, Pengcheng1
刊名	CARBOHYDRATE POLYMERS
	2016-03-15
卷号	138 期号:2016 页码:27-33
关键词	Chitooligomers Size Growth Photosynthesis Chlorophyll fluorescence
英文摘要	In this study, nine chitooligomers (COSs) including seven single COSs (chitobiose to chitooctaose) and two COS fractions with narrow degrees of polymerization (DPs) (DP8-10, DP10-12) were prepared and applied to wheat seedlings to investigate the size effects of COSs on the growth and photosynthesis parameters of wheat seedlings. The results showed that the activities of COS were closely related to their DPs, and DP >3 was necessary to insure a significant promotion effect on the growth and photosynthesis. Moreover, chitoheptaose exhibited the optimal activity compared with other COS samples. After 7 days of chitoheptaose treatment, the growth parameters of wheat seedlings could be significantly improved and the contents of soluble sugar, soluble protein and chlorophyll were increased by 59.4%, 22.0% and 20.3%, respectively. In addition, chitoheptaose could significantly enhance the net photosynthetic rate of wheat seedlings with the values of Fv/Fo, qP and Rfd increased by 11.0%, 18.6% and 14.7%, respectively, while NPQ was decreased obviously, which might resulted in the promotion of light utilization efficiency and the growth of wheat seedlings. (C) 2015 Elsevier Ltd. All rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000368096400004
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/95220]
专题	海洋研究所_海洋生物技术研发中心海洋研究所_海洋环境工程技术研究发展中心
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaoqian,Li, Kecheng,Liu, Song,et al. Size effects of chitooligomers on the growth and photosynthetic characteristics of wheat seedlings[J]. CARBOHYDRATE POLYMERS,2016,138(2016):27-33.
APA	Zhang, Xiaoqian.,Li, Kecheng.,Liu, Song.,Xing, Ronge.,Yu, Huahua.,...&Li, Pengcheng.(2016).Size effects of chitooligomers on the growth and photosynthetic characteristics of wheat seedlings.CARBOHYDRATE POLYMERS,138(2016),27-33.
MLA	Zhang, Xiaoqian,et al."Size effects of chitooligomers on the growth and photosynthetic characteristics of wheat seedlings".CARBOHYDRATE POLYMERS 138.2016(2016):27-33.