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Author:
Date:
2015-08-05
[Abstract] Legumes play a vital role in global food supply because they are uniquely capable of fixing atmospheric nitrogen (N) through symbioses with root and stem nodule bacteria, collectively called the rhizobia. These commonly include bacteria in the genera Rhizobium, Mesorhizobium, Sinorhizobium (Ensifer), and Bradyrhizobium, although other genera of bacteria have now been shown to form root nodule symbioses with several legume species (Weir, 2012). The symbiotic interaction is important for agricultural productivity, especially in less developed countries where ...
[摘要] 豆类在全球食物供应中起着至关重要的作用，因为它们独特地能够通过与根和茎结节细菌的共生固定大气氮（N），统称为根瘤菌。这些通常包括根瘤菌属，中生根瘤菌属，中华根瘤菌属（ Ensifer ）和 Bradyrhizobium 属中的细菌，的细菌现已显示与几种豆科物种形成根瘤共生（Weir，2012）。共生相互作用对于农业生产力是重要的，特别是在其中氮肥昂贵的欠发达国家中。然而，结瘤能力和竞争力在农业生产中具有实际重要性，因为高效根瘤菌的接种通常不成功，这主要是由于土壤中存在无效的土着根瘤菌的竞争性群体（Toro，1996; Triplett和Sadowsky， 。该协议允许我们定量评价中华根瘤菌菌株的相对结瘤竞争性。
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