As a result of climate change, crops often experience high-temperature stress that can drastically hinder plant growth and development. In soybean, an economically important crop that is highly sensitive to heat stress, the use of plant growth-promoting rhizobacteria (PGPRs) represents a promising strategy for countering the negative effects of heat stress. Accordingly, a novel strain of Bacillus tequilensis (i.e. SSB07) that grows actively at high temperatures was isolated, identified, and characterized in the present study. SSB07 improved the growth of Chinese cabbage seedlings and was shown to produce the gibberellins GA₁, GA₃, GA₅, GA₈, GA₁₉, GA₂₄, and GA₅₃, as well as indole-3-acetic acid and abscisic acid. The application of B. tequilensis SSB07 was also found to increase the shoot length and biomass, leaf development, and photosynthetic pigment contents of soybean plants, and under heat stress, SSB07 inoculation significantly increased the endogenous jasmonic acid and salicylic acid contents of the phyllosphere and significantly down-regulated the production of stress-responsive ABA. Thus, B. tequilensis SSB07 shows promise for countering the negative effects of climate change on crop growth and development.

由于气候变化，农作物经常遭受高温胁迫，这可能会严重阻碍植物的生长发育。在大豆（一种对热胁迫高度敏感的重要经济作物）中，使用促进植物生长的根瘤菌（PGPR）代表了一种应对热胁迫的负面影响的有前途的策略。因此，在本研究中，分离，鉴定并鉴定了在高温下活跃生长的新芽孢杆菌（即SSB07）菌株。SSB07改善了大白菜幼苗的生长，并显示产生赤霉素GA ₁，GA ₃，GA ₅，GA ₈，GA ₁₉，GA ₂₄，GA ₅₃以及吲哚-3-乙酸和脱落酸。的应用B. tequilensis SSB07还发现，增加的茎长和生物量，叶发育，和大豆植物的光合色素含量，和热胁迫下，SSB07接种显著增加内源性茉莉酮酸和叶围的水杨酸含量和显着下调了应激反应型ABA的产生。因此，B。tequilensis SSB07有望解决气候变化对作物生长和发育的不利影响。