Search

Camelina (Camelina Sativa) is a hexaploid dicotyledonous plant from the Brassicaceae family, which is very similar to the Arabidopsis. The number of camelina chromosomes is 40=2n. WRKY transcription factors are one of the most important gene families in plants that play an important role in regulating growth and development and response to various stresses. In this research, 224 WRKY genes were identified in the camelina plant by searching the database, and the chromosomal position, gene length, and conserved motifs were identified in the camelina plant based on the Arabidopsis. Also, in this study, in order to validate the research, 2 genes WRKY8 and WRKY57 under drought stress were investigated by the qPCR method. The results indicated that both the above-mentioned genes were strongly expressed under drought stress conditions in tolerant varieties compared to normal conditions, but the trend was opposite in sensitive varieties. This study has provided acceptable and valuable information for studying the evolution and function of the WRKY gene family in camelina. [ABSTRACT FROM AUTHOR]

Given the benefits of bacteria associated with the rhizosphere and phytoplane of halophytes, this research focused on examining the plant growth-promoting characteristics of bacteria isolated from Cressa cretica, Suaeda aegyptiaca, and Alhagi graecorum. From the 33 isolates tested, 9 exhibited plant growth-promoting traits. Bacillus rugosus strain CS5 and Bacillus sp. strain SS4 exhibited the notable growth inhibition of the pathogenic fungus Fusarium oxysporum, with values of 47% and 45%, respectively. Bacillus sp. strains SS4 and CS1 demonstrated impressive results in solubilizing phosphorus and zinc, respectively, achieving concentrations of 259 and 271 mg L -1 . Additionally, Staphylococcus xylosus strain SR2, Bacillus sp. strain SS4, and Bacillus paralicheniformis strain CR1 thrived in nitrogen-free media. The Priestia filamentosa strain AL4 showed the greatest HCN production, whereas B. paralicheniformis strain CR1 was notable for higher auxin production. The Bacillus sp. strains SS4 and CS1 exhibited greater tolerance than other isolates in a medium containing 600 mM of NaCl. Additionally, inoculating these isolates into soil significantly alleviated the salinity and drought stress on Zea mays seedlings. These findings suggest that further investigation into these strains as microbial inoculants could be beneficial for mitigating salt and drought stress in plants., (© 2024 Wiley‐VCH GmbH.)