South Africa is mainly dominated by savanna and grasslands ecosystems which have been previously reported to be acidic and nutrient deficient, specifically with regards to phosphorus (P) and nitrogen (N). Mucuna pruriens (L.) DC, commonly known as velvet bean, is an indigenous legume in most African countries and has been reported to withstand these adverse soil conditions. The legume is used in many countries of the world for their medicinal value as well as for soil fertilization purposes. Although there are reports on M. pruriens growth and establishment in nutrient stressed ecosystems, no investigation has been conducted on M. pruriens symbiotic interactions, N source preference and associated growth carbon costs when subjected to P deficiency. In this study, we determined the impact of microbial symbionts on N nutrition and growth carbon costs of M. pruriens under P deficiency.

中文翻译：

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在共生体刺毛黧豆刺激通过固氮和提高磷采集植物性能

南非主要以稀树草原和草原生态系统为主导，据报道，稀树草原和草原生态系统缺乏酸性和营养成分，尤其是磷（P）和氮（N）。Mucuna pruriens（L.）DC，通常被称为天鹅绒豆，是大多数非洲国家的一种土著豆类，据报道可以承受这些不利的土壤条件。在世界上许多国家，豆科植物具有药用价值，也可用于土壤肥料。尽管有关于营养不良生态系统中毛M分支杆菌生长和建立的报告，但尚未对毛pr分支杆菌进行调查磷缺乏时，共生相互作用，氮源偏好和相关的生长碳成本。在这项研究中，我们确定了微生物共生素对缺磷条件下瘙痒病菌氮营养和生长碳成本的影响。