Photoinhibition Resistance in the Red Alga Porphyra perforata
نویسندگان
چکیده
منابع مشابه
Effects of Salinity on Primary Processes of Photosynthesis in the Red Alga Porphyra perforata.
The effects of salinity on the primary processes of photosynthesis were studied in the red alga Porphyra perforata. The results show that there are at least three sites in the photosynthetic apparatus of this alga that were affected by increased salinity. The first site, photoactivation and dark-inactivation of electron flow on the reducing side of photosystem I, was completely inhibited at hig...
متن کاملSodium Exclusion and Potassium Retention by the Red Marine Alga, Porphyra Perforata
Cells of the red marine alga, Porphyra perforata, accumulate potassium and exclude sodium, chloride, and calcium. Various metabolic inhibitors including dinitrophenol, anoxia, and p-chloromercuribenzoate partially abolish the cells' ability to retain potassium and exclude sodium. Iodoacetate induces potassium loss only in the dark; reduced sulfur compounds offer protection against the effects o...
متن کاملPotassium-dependent Sodium Extrusion by Cells of Porphyra Perforata, a Red Marine Alga
Potassium-free artificial sea water causes a loss of cell potassium and a gain of cell sodium in Porphyra perforata, which is not attributable to an inhibition of respiration. On adding KCl or RbCl to such low potassium, high sodium tissues, net accumulation of potassium or rubidium takes place, accompanied by net extrusion of sodium. Rates of potassium or rubidium accumulation and sodium extru...
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Ying Xia Li, Guang Ce Wang*, Jian Feng Niu, Zheng Quan Gao & Chang Sheng Chen School of Life Science and Technology, Nanyang Normal University, Nanyang 473 061, China Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao 266 071, China. Nation Deep Sea Center of State Oceanic Administration, People’s Republic of China, Qingda...
متن کاملPhotosystem I-Mediated Regulation of Water Splitting in the Red Alga, Porphyra sanjuanensis.
The marine red alga, Porphyra sanjuanensis is found mainly in the high intertidal zone and at low tide subject to frequent and extreme water stress, often accompanied by high temperatures and light intensities. Such exposures can lead to severe desiccation which is accompanied by the progressive loss of photosynthetic activity. Even following the loss of more than 90% of the thallus water conte...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1990
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.92.2.514