NDLI: Involvement of nitrate reduction in the tolerance of tomato (Solanum lycopersicum L.) plants to prolonged root hypoxia

Content Provider	Springer Nature Link
Author	Horchani, Faouzi Aschi Smiti, Samira Brouquisse, Renaud
Copyright Year	2010
Abstract	The putative role of nitrate and nitrate reductase in the tolerance to prolonged hypoxia was investigated in tomato plants. Nitrogen nutrition has been modified either by deprivation of nitrate or by addition of tungstate—an inhibitor of nitrate reductase (NR)—in the culture medium. In the absence of nitrate as well as in the presence of tungstate, plant growth was significantly disturbed. In the presence of nitrate, the growth of hypoxic plants maintained, nitrate absorption and NR activity increased and a significant release of nitrite into the medium was observed. This mechanism of nitrate reduction, called nitrate respiration, could be an alternative pathway to oxygen-dependent respiration during root hypoxia and a transient adaptation of tomato roots to hypoxic conditions.
Starting Page	1113
Ending Page	1123
Page Count	11
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	32
Issue Number	6
e-ISSN	18611664
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-04-27
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hypoxia Nitrate Nitrate reductase Nitrite Nitrate respiration Tomato Agriculture Plant Anatomy/Development Plant Pathology Plant Biochemistry Plant Genetics & Genomics Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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