Arbuscular mycorrhizal growth responses and phosphorous efficiency in soybean genotypes

Arbuscular mycorrhizal (AM) fungi play a key role in phosphate (P) uptake of many crop species, but the mechanisms by which P uptake in the AM symbiosis is controlled are only poorly understood.

Close-up of High Oleic Soybean Pods
Close-up of High Oleic Soybean Pods. Image by United Soybean Board.

Wang et al. examined the effects of the phosphate acquisition efficiency (PAE) of soybean plants on P uptake and transport via the plant and mycorrhizal uptake pathway and demonstrate here that also soybeans with a higher PAE can highly benefit from an AM symbiosis, and that mycorrhizal P uptake benefits are much more determined by the AM fungal species than by the PAE of the host.

Further reading

Xiurong Wang, Shaopeng Zhao, Heike Bücking, 2016, 'Arbuscular mycorrhizal growth responses are fungal specific but do not differ between soybean genotypes with different phosphate efficiency', Annals of Botany, vol. 118, no. 1, pp. 11-21