K-radicincitans, a beneficial bacteria that promotes radish growth under field conditions
K-radicincitans, a beneficial bacteria that promotes radish growth under field conditions
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DOI：
10.1007/s13593-015-0324-z
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发表时间：
2015-10-01
影响因子：
7.3
通讯作者：
Ruppel, Silke
中科院分区：
文献类型：
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作者：
Berger, Beatrice;Wiesner, Melanie;Ruppel, Silke
保护可耕地是农学的一个重大挑战。使用有益的天然微生物，如植物生长促进细菌，有助于农业系统的可持续性，并有助于保持稳定的产量和产品质量。然而，在盆栽试验中观察到的候选菌株的生长促进作用往往在田间条件下消失。因此，我们在这里研究了一种已知的植物生长促进细菌Kosakonia radicitans的细菌定殖，以及K。萝卜上的菊苣我们测量了植物生长和硫代葡萄糖苷配置文件时，植物生长在温室和田间条件下。K.当出现两片叶子时，将radicincitans细胞施加到种子或植物上。我们的研究结果表明，在温室和田间条件下，接种萝卜植株的叶和块茎重量比未接种植株增加了25%。硫代葡萄糖苷含量除叶面喷施钾肥外，无明显变化。根癌我们还发现K. radicincitans抑制芳香族2-苯乙基硫代葡萄糖苷在叶片中。总之，我们首次证明了K。在田间条件下，根生素能够在菊科的成员中持续存在并促进植物生长。因此，K。根癌素是可持续农业中作为促生长产品进行进一步加工的一种有希望的候选物。
Conserving arable soils is a major challenge in agronomy. Using beneficial native microorganisms such as plant growth-promoting bacteria contributes to sustainability in agricultural systems and helps maintain stable yields and product quality. However, the growth-promoting effects of candidate strains observed in pot trials often disappear under field conditions. Therefore, we studied here the bacterial colonization of Kosakonia radicincitans, a known plant growth-promoting bacteria, and the effect of K. radicincitans on radish. We measured plant growth and glucosinolate profile when plants were grown under glasshouse and field conditions. K. radicincitans cells were applied onto seeds or plants when two leaves had emerged. Our results show an increase of up to 25 % of leaf and tuber weights of inoculated radish plants under glasshouse and field conditions, compared to non-inoculated plants. Glucosinolate contents remained unchanged, except when leaves were sprayed with K. radicincitans. We also found that K. radicincitans suppressed aromatic 2-phenylethyl glucosinolates in leaves. To sum up, we demonstrate for the first time the capability of K. radicincitans to persist and promote plant growth in a member of the Brassicaceae family under field conditions. Therefore, K. radicincitans is a promising candidate for further processing as a growth-promoting product in sustainable agriculture.