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首页> 外文期刊>Journal of bacteriology >New osmoregulated beta(1-3),beta(1-6) glucosyltransferase(s) in Azospirillum brasilense.
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New osmoregulated beta(1-3),beta(1-6) glucosyltransferase(s) in Azospirillum brasilense.

机译:巴西固氮螺菌中新的渗透压化β(1-3),β(1-6)葡萄糖基转移酶。

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摘要

A linear beta(1-3),beta(1-6) glucan was detected in the periplasm of Azospirillum brasilense cells growing in a medium of low osmotic strength. This glucan was produced in vitro by purified bacterial inner membranes with UDP-glucose as the sugar donor in the presence of Mg2+. Growth in a high-osmotic-strength medium strongly reduced the amount of this glucan accumulated in the periplasmic space, and the inhibition was associated with a reduction in the enzymatic activity of the beta(1-3),beta(1-6) glucosyltransferase(s).
机译:在低渗透强度培养基中生长的巴西细螺旋体细胞的周质中检测到线性β(1-3),β(1-6)葡聚糖。这种葡聚糖是在Mg2 +存在下,由纯化的细菌内膜以UDP-葡萄糖作为糖供体在体外产生的。在高渗透强度培养基中的生长强烈减少了在周质空间中积累的这种葡聚糖的量,并且抑制作用与β(1-3),β(1-6)葡萄糖基转移酶的酶活性降低有关(s)。

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