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In this study, a cadmium (Cd)-resistant bacterium D36 was isolated from the rhizo- spheric soil of tomato plants. The 16S rDNA gene was amplified and the plant growth-pro-moting properties were identified ? the effects of D36 on the growth and Cd accumulation in tomato plants were investigated via hydroponic experiment. The results indicated that the ob¬tained strain belongs to the genus of Sphingomonas and it has phosphate solubilization ? sid- erophores production and indoleacetic acid production properties. Under Cd stress?D36 inocu¬lation increased the root length and plant height of tomato plants by 210. 74% and 14. 97%. The fresh weight of the shoots and roots was increased by 18. 33 % and 15.09%? respectively. Total chlorophyll content was increased by 13. 40%. Meanwhile? the H2O2 content was decreased by 35. 09 % in tomato roots and the POD activity was increased by 74. 94%. Be sides,D36 inoculation markedly decreased the Cd content in tomato roots by 27. 63%. Taken together,our results indicated that D36 could modulate growth and Cd uptake of the tested plants. This study might provide a promising way of using PGPR control Cd uptake in food crops. [ABSTRACT FROM AUTHOR]

目的 观察侧脑室注入网膜素（omentin）对小鼠摄食量及其下丘脑组织神经肽 Y（NPY）、刺鼠相关蛋白（AGRP）、促肾上腺皮质激素释放激素（CRH）、阿片-促黑素细胞皮质素原（POMC）mRNA表达的影响。方法 20只昆明小鼠随机分为实验组及对照组,两组侧脑室置管并保留72 h后分别于侧脑室注射omentin及生理盐水（1.2μg/kg）,观察注射后24 h小鼠摄食量有无变化,RT-PCR检测两组小鼠下丘脑组织AGRP、NPY、CRH及POMC mRNA。结果实验组、对照组摄食量分别为（4.63±0.17）、（4.51±0.12）g,两组比较,P〉0.05。实验组、对照组NPY mRNA相对表达量分别为0.47±0.24、0.48±0.29,AGRP mRNA分别为24.31±6.21、22.01±7.14,POMC mRNA分别为0.92±0.48、0.83±0.16,CRH mRNA分别为0.93±0.45、0.69±0.12,两组CRH mRNA表达量比较,P〈0.05。结论侧脑室注入omentin对小鼠摄食量及下丘脑组织NPY、AGRP、POMC mRNA表达无影响,但CRH mRNA表达增加。 [ABSTRACT FROM AUTHOR]