Overexpression of NHX1s in transgenic Arabidopsis enhances photoprotection capacity in high salinity and drought conditions

• Autorzy: Liu P. , Yang G.-D. , Li H. , Zheng C. C. , Wu C. A.
• Języki publikacji: EN

Abstrakty

EN

In this study, we observed that transgenic plants overexpressing NHX1 from different organisms grew well in the presence of 200 mM NaCl and also under water deprivation, while the wild-type plants exhibited chlorosis and growth inhibition. The photosynthesis activity of five kinds of transgenic plants was higher than the wild-type plants. The leaf water potential was less negative for wild-type than for transgenic plants. Moreover, these transgenic plants accumulated more Na⁺ and K⁺ in their leaf tissue than the wild-type plants. The toxic effects of Na⁺ accumulation in the cytosol are reduced by its sequestration into the vacuole. In addition, the thermal dissipation and ROS scavenging components increased in all transgenic Arabidopsis plants compared with that in non-transgenics. The salt tolerance of transgenic plants was passed on to the offsprings to the T₅ generation. Furthermore, it should be noted that in transgenic Arabidopsis plants, overexpression of NHX1s from dicots showed higher salt and drought tolerance than that from wheat.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2010
• Tom: 32
• Numer: 1
• Opis fizyczny: p.81-90,fig.,ref.

Twórcy

autor

Liu P.

• Franciszek Górski Institute of Plant Physiology of the Polish Academy of Sciences

autor

Yang G.-D.

• Franciszek Górski Institute of Plant Physiology of the Polish Academy of Sciences

autor

Li H.

• Franciszek Górski Institute of Plant Physiology of the Polish Academy of Sciences

autor

Zheng C. C.

• Franciszek Górski Institute of Plant Physiology of the Polish Academy of Sciences

autor

Wu C. A.

• Franciszek Górski Institute of Plant Physiology of the Polish Academy of Sciences

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