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首页> 外文期刊>Australian Journal of Crop Science >Evaluation of rhizobacteria as non-rhizobial inoculants for mung beans
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Evaluation of rhizobacteria as non-rhizobial inoculants for mung beans

机译：根瘤菌作为绿豆非根瘤菌接种剂的评价

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Rhizobacteria associated with natural plant settings were evaluated as non-rhizobial inoculants for Vigna radiata (L.). Five bacterial strains of Providencia, Bacillus and Alcaligenes genera were screened for 1-aminocyclopropane-1-carboxylate (ACC) deaminase, auxin production and phosphate solubilization. Highest ACC-deaminse activity was exhibited by Bacillus pumilus Sol-1 (430 nmol h- 1), Alcaligenes sp. Mal-4 (390 nmol h-1) and Providencia vermicola Ama-2 (377 nmol h-1). Auxin production by rhizobacteria showed significant positive correlation (up to r = 0.965; P = 0.01) with increasing L-tryptophan concentrations. Bacterial ACC- deaminase activity significantly enhanced root length (up to 50%) and number of roots (up to 47%), over control. On the other hand, L-tryptophan dependent auxin production showed significant negative and positive correlation for root length (up to r = -0.992; P = 0.01) and number of roots (up to r = 0.979; P = 0.01), respectively. In pot trials, Alcaligenes sp. Mal-4 recorded maximum increase for shoot length (57%), shoot fresh weight (85%), shoot dry weight (96%), number of pods (64%) and seeds weight (19%). The results showed that Alcaligenes sp. Mal-4 could be used as biofertilizer to enhance the vigor and yield of leguminous plants.
机译：与天然植物环境相关的根瘤菌被评价为Vigna radiata（L.）的非根瘤菌接种剂。对普罗维登西亚属，芽孢杆菌属和产碱菌属的五个细菌菌株筛选了1-氨基环丙烷-1-羧酸酯（ACC）脱氨酶，生长素的产生和磷酸盐的增溶作用。 Alcaligenes sp。的短小芽孢杆菌Sol-1（430 nmol h-1）表现出最高的ACC脱氨活性。 Mal-4（390 nmol h-1）和Providencia vermicola Ama-2（377 nmol h-1）。根瘤菌产生的生长素显示出与L-色氨酸浓度增加呈显着正相关（高达r = 0.965; P = 0.01）。与对照相比，细菌ACC-脱氨酶活性显着提高了根长（最多50％）和根数（最多47％）。另一方面，L色氨酸依赖性植物生长素的产生分别对根长（最大r = -0.992; P = 0.01）和根数（最大r = 0.979; P = 0.01）呈显着的负相关和正相关。在盆栽试验中，Alcaligenes sp。 Mal-4记录的枝条长度（57％），枝条鲜重（85％），枝条干重（96％），豆荚数（64％）和种子重量（19％）最大增加。结果表明，产碱菌。 Mal-4可以用作生物肥料以增强豆科植物的活力和产量。

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