The role of nicotianamine synthase in response to Fe nutrition status in Gramineae

Nicotianamine is an intermediate for the biosynthesis of mugineic acid-family phytosiderophores (MAs) in the Gramineae and a key substance for iron metabolism in dicots. Nicotianamine synthase catalyzes the formation of nicotianamine from S-adenosylmethionine. Nicotianamine synthase activity was ind...

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Bibliographic Details
Published in:Plant and soil 1996, Vol.178 (2), p.171-177
Main Authors: Higuchi, Kyoko, Kanazawa, Kenji, Nishizawa, Naoko-Kishi, Mori, Satoshi
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Barley
Biological and medical sciences
biosintesis
biosynthese
biosynthesis
carence en oligoelement
Corn
deficiencia de oligoelementos
Economic plant physiology
Enzymes
fer
Fundamental and applied biological sciences. Psychology
gramineae
hierro
iron
Metabolism
Mineral nutrition
Nitrogen metabolism
Nitrogen metabolism and other ones (excepting carbon metabolism)
Nutrition. Photosynthesis. Respiration. Metabolism
Phytosiderophores
Plant physiology and development
Plant roots
Plants
Protease inhibitors
Secretion
sideroforos
siderophore
siderophores
Sorghum
trace element deficiencies
Washing
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Summary:Nicotianamine is an intermediate for the biosynthesis of mugineic acid-family phytosiderophores (MAs) in the Gramineae and a key substance for iron metabolism in dicots. Nicotianamine synthase catalyzes the formation of nicotianamine from S-adenosylmethionine. Nicotianamine synthase activity was induced in barley roots at the 3rd day after withholding Fe supply and declined within one day following the supply of Fe³⁺-epihydroxymugineic acid. The induction of nicotianamine synthase activity by Fe-deficiency was observed also in sorghum, maize, and rye, and the level of nicotianamine synthase activity was highly associated with the MAs secreted among graminaceous plant tested. Therefore, the nicotianamine synthase gene may be a suitable candidate for making a transgenic plant tolerant to Fe-deficiency.
ISSN:0032-079X
1573-5036
DOI:10.1007/bf00011580