The effect of Nax2 on lowering the Na(+) concentration in bread wheat was surprising as this gene is very similar to the TaHKT1;5-D Na(+) transporter already present in bread wheat, putatively at the Kna1 locus. The results indicate that both Nax genes have the potential to improve the salt tolerance of bread wheat.

2011年2月1日 · The results indicate that both Nax genes have the potential to improve the salt tolerance of bread wheat. The effect of Nax1 on the ratio of Na + concentration in the

2011年2月28日 · Nax genes were thus transferred into four different Australian wheat cultivars. Lines with and without both Nax genes were analysed for their Na + excluding ability, their partitioning of Na + between the sheath and blade (the fingerprint of Nax1), and their photosynthetic performance in 150 mM NaCl.

2011年4月30日 · The effect of Nax2 on lowering the Na(+) concentration in bread wheat was surprising as this gene is very similar to the TaHKT1;5-D Na(+) transporter already present in bread wheat, putatively at the Kna1 locus. The results indicate that both Nax genes have the potential to improve the salt tolerance of bread wheat.

2006年7月12日 · This article describes the separation of the two genes, their different functions, and their possible origin. We show that both Nax genes restrict the transport of Na + from roots to shoots and result in enhanced K +-Na + discrimination in the leaf blade. Nax2 has a similar mechanism to that described for Kna1 in bread wheat.

The mean sheath to blade ratio for Na + in the BC 3 [+] Nax1 sets of lines ranged from between 1.7 and 3.1 times higher than their respective recurrent parents, whereas there was no effect ...

2004年12月1日 · This study used the rice (Oryza sativa) genome sequence and data from the wheat expressed sequence tag deletion bin mapping project to identify markers and construct a high-resolution map of the Nax1 region, and found the expression pattern of TmHKT7-A2 was consistent with the physiological role of Nax 1 in reducing Na concentration in leaf ...

In this work, we show that the Nax loci also affect activity and expression levels of the SOS1-like Na(+)/H(+) exchanger in both root cortical and stelar tissues. Net Na(+) efflux measured in isolated steles from salt-treated plants, using the non-invasive ion flux measuring MIFE technique, decreased in the sequence: Tamaroi (parental line ...

2015年11月19日 · Our finding that net Na + efflux is significantly higher in Tamaroi compared with any Nax lines is consistent with this proposal and also provides strong supportive evidence for the inhibition of a SOS1-like exchanger by the Nax loci.

2013年1月1日 · In 250mM NaCl, Nax1 promoted leaf longevity and greater photosynthesis and stomatal conductance. In the uppermost leaf, the Na+-excluding effect of the Nax loci was much stronger.