A clear correlation could be found between the potential tolerance of species to salinity fluctuations and IIC changes. The most tolerant algal species; D. salina showed the lowest level of response (IIC fluctuations), to increase in extracellular Na+. More specifically, D. salina could resist extra cellular Na+ concentration of as high as 2 M by maintaining the balance of K+ inside the cell and protecting photosynthetic apparatus. Interestingly, among the Chlorella species studied, only C. vulgaris showed successful adaptation and increased fitness to high salinity levels and the other two species (C. emersonii and C. salina, respectively) deceased.
BdbZIP genes behaved diverse functional characters and showed discrepant and some regular expression patterns in response to abiotic stresses. Comprehensive analysis indicated these BdbZIPs’ expressions were associated not only with gene structure, exon splicing pattern and dimerization feature, but also with abiotic stress treatments. It is possible that our findings are crucial for revealing the potentialities of utilizing these candidate BdbZIPs to improve productivity of grass plants and cereal crops.
I can suggest RD29B and RD29A which have a cis acting element in their promoter region which are induced by ABA. For that reason these kind of genes are usually called stress inducible genes. The RD29B usually induced by ABA. RD29A is induced by both ABA dependent and ABA independent pathways that can be used as well or ABRE and DREB as two transcription factors can be good options since they are transcription factors induced by abiotic stresses. All these genes are inducible by abiotic stresses such as cold, salinity and drought stresses. Although they are very famous for studying abiotic stresses in higher plants I am not confident related their existence and their role in algae