High light exposure on seed coat increases lipid accumulation in seeds of castor bean (Ricinus communis L.), a nongreen oilseed crop

doi:10.1007/s11120-015-0206-x

	High light exposure on seed coat increases lipid accumulation in seeds of castor bean (Ricinus communis L.), a nongreen oilseed crop
	Zhang, Yang 1,2; Mulpuri, Sujatha 3; Liu, Aizhong4
	2016-05-01
发表期刊	PHOTOSYNTHESIS RESEARCH
卷号	128 期号:2 页码:125-140
摘要	Little was known on how sunlight affects the seed metabolism in nongreen seeds. Castor bean (Ricinus communis L.) is a typical nongreen oilseed crop and its seed oil is an important feedstock in industry. In this study, photosynthetic activity of seed coat tissues of castor bean in natural conditions was evaluated in comparison to shaded conditions. Our results indicate that exposure to high light enhances photosynthetic activity in seed coats and consequently increases oil accumulation. Consistent results were also reached using cultured seeds. High-throughput RNA-Seq analyses further revealed that genes involved in photosynthesis and carbon conversion in both the Calvin-Benson cycle and malate transport were differentially expressed between seeds cultured under light and dark conditions, implying several venues potentially contributing to light-enhanced lipid accumulation such as increased reducing power and CO2 refixation which underlie the overall lipid biosynthesis. This study demonstrated the effects of light exposure on oil accumulation in nongreen oilseeds and greatly expands our understanding of the physiological roles that light may play during seed development in nongreen oilseeds. Essentially, our studies suggest that potential exists to enhance castor oil yield through increasing exposure of the inflorescences to sunlight either by genetically changing the plant architecture (smart canopy) or its growing environment.
关键词	Castor Bean Nongreen Oilseed Light Exposure Oil Accumulation Seed Coat
DOI	10.1007/s11120-015-0206-x
收录类别	SCI
语种	英语
WOS记录号	WOS:000374593600003
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/26259
专题	资源植物与生物技术所级重点实验室
作者单位	1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Plant Resources & Sustainable Use, 88 Xuefu Rd, Kunming 650223, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Indian Inst Oilseeds Res, Hyderabad 500030, Andhra Pradesh, India 4.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, 132 Lanhei Rd, Kunming 650204, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yang,Mulpuri, Sujatha,Liu, Aizhong. High light exposure on seed coat increases lipid accumulation in seeds of castor bean (Ricinus communis L.), a nongreen oilseed crop[J]. PHOTOSYNTHESIS RESEARCH,2016,128(2):125-140.
APA	Zhang, Yang,Mulpuri, Sujatha,&Liu, Aizhong.(2016).High light exposure on seed coat increases lipid accumulation in seeds of castor bean (Ricinus communis L.), a nongreen oilseed crop.PHOTOSYNTHESIS RESEARCH,128(2),125-140.
MLA	Zhang, Yang,et al."High light exposure on seed coat increases lipid accumulation in seeds of castor bean (Ricinus communis L.), a nongreen oilseed crop".PHOTOSYNTHESIS RESEARCH 128.2(2016):125-140.

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