2,4-二氯苯氧乙酸对根瘤菌生长的影响及其转运特性

Effects of 2,4-dichlorophenoxyacetic acid on Rhizobium sp. growth and characterization of its transport.

作者信息

Arias R N, Fabra de Peretti A

机构信息

Facultad de Ciencias Exactas, Fisico-Quimicas y Naturales, Universidad Nacional de Rio Cuarto, Argentina.

出版信息

Toxicol Lett. 1993 Jun;68(3):267-73. doi: 10.1016/0378-4274(93)90017-r.

DOI:10.1016/0378-4274(93)90017-r

PMID:8516779

Abstract

The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) produced a deleterious effect on the growth of Rhizobium sp. M4, that was reversed by transferring the cells to a fresh control medium. The uptake of 2,4-D by Rhizobium sp. was not affected by chloramphenicol, indicating that it is constitutive rather than inducible. The mechanism of transport also appears to be energy independent, since uptake was not inhibited by azide or arsenate.

摘要

除草剂2,4-二氯苯氧乙酸（2,4-D）对根瘤菌M4的生长产生了有害影响，将细胞转移到新鲜的对照培养基中后这种影响得以逆转。根瘤菌对2,4-D的吸收不受氯霉素的影响，这表明它是组成型的而非诱导型的。转运机制似乎也不依赖能量，因为叠氮化物或砷酸盐不会抑制其吸收。