Co-suppression in Pyropia yezoensis (Rhodophyta) Reveals the Role of PyLHCI in Light Harvesting and Generation Switch(1)

doi:10.1111/jpy.13073

IOCAS-IR > 实验海洋生物学重点实验室

	Co-suppression in Pyropia yezoensis (Rhodophyta) Reveals the Role of PyLHCI in Light Harvesting and Generation Switch(1)
	Zheng, Zhenbing 1; He, Bangxiang 1; Xie, Xiujun 1; Wang, Guangce 1,2
	2020-11-24
发表期刊	JOURNAL OF PHYCOLOGY
ISSN	0022-3646
页码	12
通讯作者	Wang, Guangce([email protected])
摘要	The red macroalga Pyropia yezoensis is an economically important seaweed widely cultured in Asian countries and is a model organism for molecular biological and commercial research. This species is unique in that it utilizes both phycobilisomes and transmembrane light-harvesting proteins as its antenna system. Here, one of the genes of P. yezoensis (PyLHCI) was selected for introduction into its genome to overexpress PyLHCI. However, the co-suppression phenomenon occurred. This is the first documentation of co-suppression in algae, in which it exhibits a different mechanism from that in higher plants. The transformant (T1) was demonstrated to have higher phycobilisomes and lower LHC binding pigments, resulting in a redder color, higher sensitivity to salt stress, smaller in size, and slower growth rate than the wildtype (WT). The photosynthetic performances of T1 and WT showed similar characteristics; however, P700 reduction was slower in T1. Most importantly, T1 could release a high percentage of carpospores in young blades to switch generation during its life cycle, which was rarely seen in WT. The co-suppression of PyLHCI revealed its key roles in light harvesting, stress resistance, and generation alternation (generation switch from gametophytes to sporophytes, and reproduction from asexual to sexual).
关键词	co‐ suppression generation switch LHCI life cycle Pyropia yezoensis
DOI	10.1111/jpy.13073
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFD0901500]; National Natural Science Foundation of China[41906105]; National Natural Science Foundation of China[41606161]; National Natural Science Foundation of China[41976097]; China Postdoctoral Science Foundation[2019M652594]
WOS研究方向	Plant Sciences ; Marine & Freshwater Biology
WOS类目	Plant Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000591661200001
出版者	WILEY
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/169175
专题	实验海洋生物学重点实验室
通讯作者	Wang, Guangce
作者单位	1.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Key Lab Expt Marine Biol, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zheng, Zhenbing,He, Bangxiang,Xie, Xiujun,et al. Co-suppression in Pyropia yezoensis (Rhodophyta) Reveals the Role of PyLHCI in Light Harvesting and Generation Switch(1)[J]. JOURNAL OF PHYCOLOGY,2020:12.
APA	Zheng, Zhenbing,He, Bangxiang,Xie, Xiujun,&Wang, Guangce.(2020).Co-suppression in Pyropia yezoensis (Rhodophyta) Reveals the Role of PyLHCI in Light Harvesting and Generation Switch(1).JOURNAL OF PHYCOLOGY,12.
MLA	Zheng, Zhenbing,et al."Co-suppression in Pyropia yezoensis (Rhodophyta) Reveals the Role of PyLHCI in Light Harvesting and Generation Switch(1)".JOURNAL OF PHYCOLOGY (2020):12.

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