干旱区生态环境知识资源中心(Arid): The desert green algae Chlorella ohadii thrives at excessively high light intensities by exceptionally enhancing the mechanisms that protect photosynthesis from photoinhibition

Arid

DOI	10.1111/tpj.15232
	The desert green algae Chlorella ohadii thrives at excessively high light intensities by exceptionally enhancing the mechanisms that protect photosynthesis from photoinhibition
	Levin, Guy; Kulikovsky, Sharon; Liveanu, Varda; Eichenbaum, Benjamin; Meir, Ayala; Isaacson, Tal; Tadmor, Yaakov; Adir, Noam; Schuster, Gadi
通讯作者	Schuster, G (corresponding author), Technion Israel Inst Technol, Fac Biol, IL-32000 Haifa, Israel. ; Schuster, G (corresponding author), Technion Israel Inst Technol, Grand Technion Energy Program, IL-32000 Haifa, Israel.
来源期刊	PLANT JOURNAL
ISSN	0960-7412
EISSN	1365-313X
出版年	2021
卷号	106 期号:5 页码:1260-1277
英文摘要	Although light is the driving force of photosynthesis, excessive light can be harmful. One of the main processes that limits photosynthesis is photoinhibition, the process of light-induced photodamage. When the absorbed light exceeds the amount that is dissipated by photosynthetic electron flow and other processes, damaging radicals are formed that mostly inactivate photosystem II (PSII). Damaged PSII must be replaced by a newly repaired complex in order to preserve full photosynthetic activity. Chlorella ohadii is a green microalga, isolated from biological desert soil crusts, that thrives under extreme high light and is highly resistant to photoinhibition. Therefore, C. ohadii is an ideal model for studying the molecular mechanisms underlying protection against photoinhibition. Comparison of the thylakoids of C. ohadii cells that were grown under low light versus extreme high light intensities found that the alga employs all three known photoinhibition protection mechanisms: (i) massive reduction of the PSII antenna size; (ii) accumulation of protective carotenoids; and (iii) very rapid repair of photodamaged reaction center proteins. This work elucidated the molecular mechanisms of photoinhibition resistance in one of the most light-tolerant photosynthetic organisms, and shows how photoinhibition protection mechanisms evolved to marginal conditions, enabling photosynthesis-dependent life in severe habitats.
英文关键词	photoinhibition photoprotection chlorella green algae photosynthetic antenna size xanthophyll cycle D1 turnover
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000644874000001
WOS关键词	PHOTOSYSTEM-II
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351334
作者单位	[Levin, Guy; Kulikovsky, Sharon; Liveanu, Varda; Eichenbaum, Benjamin; Schuster, Gadi] Technion Israel Inst Technol, Fac Biol, IL-32000 Haifa, Israel; [Adir, Noam; Schuster, Gadi] Technion Israel Inst Technol, Grand Technion Energy Program, IL-32000 Haifa, Israel; [Adir, Noam] Technion Israel Inst Technol, Schulich Fac Chem, IL-32000 Haifa, Israel; [Meir, Ayala; Isaacson, Tal; Tadmor, Yaakov] Agr Res Org, Dept Vegetable Res, Newe Yaar Res Ctr, Ramat Yishay, Israel
推荐引用方式 GB/T 7714	Levin, Guy,Kulikovsky, Sharon,Liveanu, Varda,et al. The desert green algae Chlorella ohadii thrives at excessively high light intensities by exceptionally enhancing the mechanisms that protect photosynthesis from photoinhibition[J],2021,106(5):1260-1277.
APA	Levin, Guy.,Kulikovsky, Sharon.,Liveanu, Varda.,Eichenbaum, Benjamin.,Meir, Ayala.,...&Schuster, Gadi.(2021).The desert green algae Chlorella ohadii thrives at excessively high light intensities by exceptionally enhancing the mechanisms that protect photosynthesis from photoinhibition.PLANT JOURNAL,106(5),1260-1277.
MLA	Levin, Guy,et al."The desert green algae Chlorella ohadii thrives at excessively high light intensities by exceptionally enhancing the mechanisms that protect photosynthesis from photoinhibition".PLANT JOURNAL 106.5(2021):1260-1277.