MaPIP1 1-overexpressing transgenic plants MaPIP1 1-overexpressings of proline and osmotransgenicial complantsto WT plants subjected to simaintainedghigheratment, implevelsthat MaPIP1;1 may functiof in maintaining osmotic adjustment under drought stress.
Transgenic plants maintained higher leaf relative water content (RWC) and showed lesser reduction in plant growth under drought stress as compared to non-transgenic (NT) plants.
Leaf physiological measurements revealed that transgenic soybean plants maintained higher leaf water potential at predawn, higher net CO2 assimilation rate, higher stomatal conductance and higher transpiration rate than non-transgenic plants.
Recently, we demonstrated that Arabidopsis plants subjected to several cycles of dehydration/water recovery treatments maintained higher relative water content than plants experiencing dehydration stress for the first time [ 9].
While after ten days of stress period, the E + plants still maintained higher growth as was noticed during the quantification of free amino acids, essential nutrients and ABA.
All transgenic lines showed greater CAT activity than that of the wild-type plants and maintained higher CAT activity over the 5 days under both normal and chilling stress conditions.
Another group of differentially expressed genes showed up-regulation of transcript abundance mainly at late time-points (cluster D), while 234 genes were up-regulated early during the treatment and maintained high expression levels relative to control plants (cluster E).
In terms of denitrification, this could mean a more diverse community of plants maintains higher productivity despite environmental changes, which could provide more consistent inputs of plant C belowground.
Therefore, the reduction was more pronounced for WT plants than for transgenic ones, showing that transgenic plants were able to maintain higher growth rates compared to WT plants during water shortage.
Fv/Fm has been mentioned as a good indicator for membrane damage caused by chilling [62,63], and other authors also found that the exogenous application of GB allowed chilled tomato plants to maintain higher Fv/Fm values than non-GB-treated chilled fruits [55].
