Abstract

The bacterial strain Pseudomonas protegens DA1.2 was isolated from anthropogenic disturbed soil, studied, and identified. The isolate has potential for use in crop production: it synthesizes indolylacetic acid, promotes the mobilization of phosphorus from insoluble compounds, has nitrogenase activity, and shows antagonism against microscopic fungi from the genera Alternaria, Bipolaris, Botrytis, Fusarium, and Rhizoctonia. The strain remains viable in herbicidal (Octapon Extra, Florax, Chistalan, Nanomet, Spetsnaz, Dicamba) solutions that are widely used to process crops of cultivated cereals and can be used in tank mixtures containing these herbicides. On a lit site, the simultaneous spraying of wheat plants with herbicide and a liquid culture of P. protegens DA1.2 stimulates root and shoots growth and normalizes the chlorophyll and proline content in the leaves. Field experience from 2019 on the field of the Baimak Division of the Bashkir Research Institute of Agriculture of the Ufa Federal Research Center of the Russian Academy of Science showed an 19–24% increase in yield after the use of bacterial culture against the background of the Nanomet and Chistalan herbicides. The results allow indicate that the culture of P. protegens DA1.2 is a promising growth stimulator and agent for a reduction of herbicide stress in wheat.

中文翻译：

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一种有前途的抗除草剂假单胞菌细菌性细菌菌株，可刺激农业谷物的生长。

摘要

从人为干扰的土壤中分离出细菌假单胞菌蛋白DA1.2，对其进行了研究和鉴定。该分离物具有用于在作物生产中使用的潜力：它合成吲哚乙酸，促进磷的从不溶的化合物动员，有固氮酶活性，并且显示了针对从属微观真菌拮抗孢，蠕，灰霉病，镰孢，和丝核菌。该菌株在除草剂（Octapon Extra，Florax，Chistalan，Nanomet，Spetsnaz，Dicamba）溶液中仍然是可行的，该溶液被广泛用于加工谷物作物，并可用于含有这些除草剂的罐混物中。在光亮的地方，用除草剂和小麦的液体培养物同时喷洒小麦植株。P. protegens DA1.2刺激根和芽生长，并使叶片中的叶绿素和脯氨酸含量正常化。从2019年开始，在俄罗斯科学院乌法联邦研究中心巴什基尔农业研究所Baimkak研究所的田间经验表明，在细菌培养的背景下，使用细菌培养后产量提高了19–24％。 Nanomet和Chistalan除草剂。该结果表明，P.protegens DA1.2的培养物是一种有希望的生长刺激剂和减轻小麦中除草剂胁迫的试剂。