Australian Research Council Centre of Excellence for Integrative Legume Research; School of Agricultural and Food Sciences; The University of Queensland, St. Lucia; Brisbane, QLD Australia.
Plant Signal Behav. 2013 Mar;8(3):e23426. doi: 10.4161/psb.23426. Epub 2013 Jan 18.
Legumes represent some of the most important crop species worldwide. They are able to form novel root organs known as nodules, within which biological nitrogen fixation is facilitated through a symbiotic interaction with soil-dwelling bacteria called rhizobia. This provides legumes with a distinct advantage over other plant species, as nitrogen is a key factor for growth and development. Nodule formation is tightly regulated by the plant and can be inhibited by a number of external factors, such as soil pH. This is of significant agricultural and economic importance as much of global legume crops are grown on low pH soils. Despite this, the precise mechanism by which low pH conditions inhibits nodule development remains poorly characterized.
豆类是全球最重要的农作物物种之一。它们能够形成新的根器官，称为根瘤，通过与土壤中称为根瘤菌的细菌共生相互作用，促进生物固氮。这为豆类提供了相对于其他植物物种的明显优势，因为氮是生长和发育的关键因素。根瘤的形成受到植物的严格调控，并且可以被许多外部因素抑制，例如土壤 pH 值。这在农业和经济方面具有重要意义，因为全球许多豆类作物都生长在低 pH 值的土壤上。尽管如此，低 pH 值条件抑制根瘤发育的确切机制仍未得到充分描述。
