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Salinity is a major factor limiting plant growth and agricultural production worldwide. Glycine betaine (GB) is one of the most universal osmoprotectants that protects plants from environmental stresses. In this study, transgenic cotton co-expressing ApGSMT2g and ApDMT2g was generated by Agrobacterium-mediated transformation. Compared with wild-type (WT), co-expression of ApGSMT2g and ApDMT2g in cotton...
Salinity is one of the major abiotic stressors affecting cotton production. The AtNHX1 gene from Arabidopsis thaliana and the TsVP gene from Thellungiella halophila were co-expressed in cotton (cv. GK35) to improve its salt tolerance. Cotton with overexpressed AtNHX1-TsVP genes had higher emergence rates and higher dry matter accumulation under salt stress in the greenhouse and better emergence rates...
The emergence and survival of cotton seedlings is crucial for cotton cultivation in saline fields. Limited seed cotton yield in saline fields is also a matter of concern for farmers. The expression of TsVP, a Thellungiella halophila gene encoding a vacuolar proton pumping pyrophosphatase, has been shown to improve the salinity tolerance of transgenic cotton under greenhouse conditions. However, the...
Homozygous transgenic cotton (Gossypium hirsutum L.) plants that accumulated glycinebetaine (GB) in larger quantities were more tolerant to salt than wild-type (WT) plants. Four transgenic lines, namely 1, 3, 4, and 5, accumulated significantly higher levels of GB than WT plants did both before and after salt stress. At 175 and 275 mM NaCl, seeds of all the transgenic lines germinated earlier and...
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