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Plant aquaporins:Their roles beyond water transport

The Crop Journal 2024年第3期12卷 641-655页

作者： Qi Sun Xin Liu Yoshichika Kitagawa giuseppe calamita Xiaodong Ding Key Laboratory of Agricultural Biological Functional Genes Northeast Agricultural UniversityHarbin 150030HeilongjiangChina Graduate School of Bioresource Sciences Akita Prefectural UniversityAkita 010-0195Japan Department of Biosciences Biotechnologies and BiopharmaceuticsUniversity of Bari‘Aldo Moro’I-70125 BariItaly Key Laboratory of Soybean Biology of Chinese Education Ministry Northeast Agricultural UniversityHarbin 150030HeilongjiangChina

Compared to other organisms,plants have evolved a greater number of aquaporins with diverse substrates and functions to adapt to ever-changing environmental and internal stimuli for growth and development.Although aquaporins were initially identified as channels that allow water molecules to cross biological membranes,progress has been made in identifying various novel permeable substrates.Many studies have characterized the versatile physiological and biophysical functions of plant aquaporins.Here,we review the recent reports that highlight aquaporin-facilitated regulation of major physiological processes and stress tolerance throughout plant life cycles as well as the potential prospects and possibilities of applying aquaporins to improve agricultural productivity,food quality,environmental protection,and ecological conservation.

关键词： Plant aquaporin Substrate Physiological function Agriculture and environment

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Pathogenic role of oxidative and nitrosative stress in primary biliary cirrhosis

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World Journal of Gastroenterology 2014年第19期20卷 5746-5759页

作者： Ignazio Grattagliano giuseppe calamita Tiziana Cocco David Q-H Wang Piero Portincasa Italian College of General Practitioners 50100 FlorenceBari 70124Italy Department of Bioscience Biotechnologyand Biopharmaceutics"Aldo Moro" University Medical SchoolBari 70124Italy Department of Basic Medical Science Neurosciencesand Sense Organs"Aldo Moro" University Medical SchoolBari 70124Italy Department of Internal Medicine Division of Gastroenterology and HepatologySaint Louis University School of MedicineSt.LouisMO 63104United States Clinica Medica "A.Murri" Department of Biomedical Sciences and Human Oncology"Aldo Moro" University Medical SchoolBari 70124Italy

Primary biliary cirrhosis is a multifactor autoimmune disease characterized by hepatic and systemic manifestations,with immune system dysregulation and abnormalities in the hepatic metabolism of bile salts,lipids,and nutrients,as well as destruction of membrane lipids and mitochondrial dysfunction.Both oxidative and nitrosative stress are associated with ongoing manifestations of the disease.In particular,abnormalities in nitric oxide metabolism and thiol oxidation already occur at early stages,thus leading to the hypothesis that these biochemical events play a pathogenic role in primary biliary cirrhosis.Moreover,the association of these metabolic abnormalities with the progression of the disease may indicate some biochemical parameters as early diagnostic markers of disease evolution,and may open up the potential for pharmacological intervention to inhibit intra-and extra-cellular stress events for resuming hepatocellular functions.The following paragraphs summarize the current knowledge by outlining molecular mechanisms of the disease related to these stress events.

关键词： Aquaporins Bile salts Chronic cholestasis Glutathi

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