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Synonyms
nas, nicotianamine synthase, osnas2, osnas1, osnas3, chloronerva, atnas4, hvnas1, na synthase, atnas1,
more
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physiological function
intercellular transport of iron (Fe) in dicotyledonous plants
evolution
AtNAS4 is the fourth member of the Arabidopsis thaliana NAS gene family
malfunction
a mutant Salk 135507 carrying a T-DNA insertion in AtNAS4, as well as lines overexpressing AtNAS4 both in the mutant and the wild-type genetic backgrounds, are used to decipher the role of AtNAS4 in nicotinamine synthesis, iron homeostasis and the plant response to iron deficiency or cadmium supply, severe chlorotic phenotype in insertion mutant plants, young leaves displayed interveinal chlorosis, overexpression of AtNAS4 leads to enhanced nicotianamine accumulation. In the shoots, whereas the manganese concentration is unchanged, differences in zinc and copper are observed in iron sufficient-conditions but not in iron-deficient conditions
metabolism
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biosynthesis of nicotianamine, which chelates and transports micronutrient metal ions in plants
physiological function
intercellular transport of iron (Fe) in dicotyledonous plants
physiological function
Arabidopsis thaliana isozyme nicotianamine synthase 4 is required for proper response to iron deficiency and to cadmium exposure. Role of AtNAS4 in nicotinamine synthesis, iron homeostasis and the plant response to iron deficiency or cadmium supply
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Suzuki, K.; Nakanishi, H.; Nishizawa, N.K.; Mori, S.
Analysis of upstream region of nicotinamine synthase gene from Arabidopsis thaliana: presence of putative ERE-like sequence
Biosci. Biotechnol. Biochem.
65
2794-2797
2001
Arabidopsis thaliana
brenda
Douchkov, D.; Gryczka, C.; Stephan, U.W.; Hell, R.; Baeumlein, H.
Ectopic expression of nicotianamine synthase genes results in improved iron accumulation and increased nickel tolerance in transgenic tobacco
Plant Cell Environ.
28
365-374
2005
Arabidopsis thaliana
-
brenda
Wirth, J.; Poletti, S.; Aeschlimann, B.; Yakandawala, N.; Drosse, B.; Osorio, S.; Tohge, T.; Fernie, A.R.; Guenther, D.; Gruissem, W.; Sautter, C.
Rice endosperm iron biofortification by targeted and synergistic action of nicotianamine synthase and ferritin
Plant Biotechnol. J.
7
631-644
2009
Arabidopsis thaliana (Q9FF79)
brenda
Klatte, M.; Schuler, M.; Wirtz, M.; Fink-Straube, C.; Hell, R.; Bauer, P.
The analysis of Arabidopsis nicotianamine synthase mutants reveals functions for nicotianamine in seed iron loading and iron deficiency responses
Plant Physiol.
150
257-271
2009
Arabidopsis thaliana
brenda
Hakoyama, T.; Watanabe, H.; Tomita, J.; Yamamoto, A.; Sato, S.; Mori, Y.; Kouchi, H.; Suganuma, N.
Nicotianamine synthase specifically expressed in root nodules of Lotus japonicus
Planta
230
309-317
2009
Medicago truncatula (A2Q2X7), Oryza sativa Indica Group (A2XFU4), Oryza sativa Indica Group (A2XFU5), Oryza sativa Indica Group (A2YQ58), Lotus japonicus (B9A9Z1), Lotus japonicus (B9A9Z2), Lotus japonicus, Arabidopsis thaliana (O80483), Arabidopsis thaliana (Q6L5P3), Arabidopsis thaliana (Q9FF79), Arabidopsis thaliana (Q9FKT9), Zea mays (Q8LT22), Zea mays (Q8S9C5), Hordeum vulgare (Q9XFB6), Hordeum vulgare (Q9XFB7), Hordeum vulgare (Q9ZQV3), Hordeum vulgare (Q9ZQV6), Hordeum vulgare (Q9ZQV7), Hordeum vulgare (Q9ZQV8), Hordeum vulgare (Q9ZQV9), Solanum lycopersicum (Q9XGI7)
brenda
Koen, E.; Besson-Bard, A.; Duc, C.; Astier, J.; Gravot, A.; Richaud, P.; Lamotte, O.; Boucherez, J.; Gaymard, F.; Wendehenne, D.
Arabidopsis thaliana nicotianamine synthase 4 is required for proper response to iron deficiency and to cadmium exposure
Plant Sci.
209
1-11
2013
Arabidopsis thaliana (Q6L5P3), Arabidopsis thaliana, Arabidopsis thaliana Col-0 (Q6L5P3)
brenda