Journal of Food, Agriculture and Environment

Vol 11, Issue 1,2013
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Enhancement in photosynthesis characteristics and phytohormones of flowering Chinese cabbage (Brassica campestris L. var. utilis Tsen et Lee) by exogenous alginate oligosaccharides


Yunhong Zhang 1, HengYin 1, Wenxia Wang 1, Xiaoming Zhao 1, Yuguang Du 1*, Lishu Wu 2

Recieved Date: 2012-09-18, Accepted Date: 2013-01-27


Alginate oligosaccharides (AOS), a kind of marine oligosaccharides, involve in regulating in seed germination, seedling growth and response to stress. However, the growth promotion mechanism of AOS on plant remains unclear. Water cultivation experiments were conducted to study the effects of AOS on photosynthesis characteristics and phytohormones accumulation of flowering Chinese cabbage (Brassica campestris L. var. utilis Tsen et Lee). The results showed that the net photosynthetic rate (Pn), water use efficiency (WUE), CO2 carboxylation efficiency (CE) and light saturation point (LSP) of functional leaves were raised by AOS, whereas light compensation point (LCP) was reduced. AOS increased the accumulation of sucrose and starch by inducing the activity of sucrose synthase (SS) and sucrose phosphate synthase (SPS), resulting in an increase in the yield. AOS enhanced the biosynthesis and transport of gibberellic acid (GA3), and the transport of indolacetic-3-acid (IAA) to the root and trans-zeatin riboside (ZR) to the shoot, whereas did not affect abscisic acid (ABA), leading to the increase in concentration ratio of ZR/ABA, ZR/GA3, ZR/IAA and GA3/ IAA in leaves. These results identified that improvement in the yield and quality of Chinese cabbage of application AOS was through modification of phytohormonal metabolism and photosynthetic physiology of plant. 


Alginate oligosaccharide, Brassica campestris L. var. utilis Tsen et Lee, photosynthesis, carbon metabolism, phytohormone metabolism

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 1
Category: Agriculture
Pages: 669-675

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :