首页> 美国卫生研究院文献>Microorganisms >Variovorax sp. Has an Optimum Cell Density to Fully Function as a Plant Growth Promoter
【2h】

Variovorax sp. Has an Optimum Cell Density to Fully Function as a Plant Growth Promoter

机译:Variovorax sp。具有最佳的细胞密度可以充分发挥植物生长促进剂的作用

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Utilization of plant growth-promoting bacteria colonizing roots is environmentally friendly technology instead of using chemicals in agriculture, and understanding of the effects of their colonization modes in promoting plant growth is important for sustainable agriculture. We herein screened the six potential plant growth-promoting bacteria isolated from Beta vulgaris L. (Rhizobium sp. HRRK 005, Polaromonas sp. HRRK 103, Variovorax sp. HRRK 170, Mesorhizobium sp. HRRK 190, Streptomyces sp. HRTK 192, and Novosphingobium sp. HRRK 193) using a series of biochemical tests. Among all strains screened, HRRK 170 had the highest potential for plant growth promotion, given its ability to produce plant growth substances and enzymes such as siderophores and 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, respectively, concomitantly with active growth in a wider range of temperatures (10–30 °C) and pH (5.0–10.0). HRRK 170 colonized either as spots or widely on the root surface of all vegetable seedlings tested, but significant growth promotion occurred only in two vegetables (Chinese cabbage and green pepper) within a certain cell density range localized in the plant roots. The results indicate that HRRK 170 could function as a plant growth promoter, but has an optimum cell density for efficient use.
机译:利用在根部定植植物的促进生长的细菌是一种环保技术,而不是在农业中使用化学物质,了解其定植模式对促进植物生长的作用对于可持续农业至关重要。我们在本文中筛选了从寻常甜菜(Beta vulgaris L.)(根瘤菌属HRRK 005,极地菌属HRRK 103,Variovorax属菌HRRK 170,中根瘤菌属HRRK 190,链霉菌属HRTK 192和新孢子虫属)中分离出来的六个潜在的植物生长细菌。 (HRRK 193)。在所有筛选的菌株中,HRRK 170具有最大的促进植物生长的潜力,因为它具有产生植物生长物质和酶的能力,例如铁载体和1-氨基环丙烷-1-羧酸(ACC)脱氨酶,并能在植物中活跃生长。温度(10–30°C)和pH(5.0–10.0)的范围更广。 HRRK 170在所有受测蔬菜幼苗的根部表面上均以斑点或广泛定居,但仅在植物根部一定细胞密度范围内的两种蔬菜(大白菜和青椒)中发生了显着的生长促进作用。结果表明,HRRK 170可以充当植物生长促进剂,但具有有效利用的最佳细胞密度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号