Metabolomics of soybean green stem and foliar retention (GSFR) disease using mass spectrometry and molecular networking.

Rationale: The nematode Aphelenchoides besseyi is the causal agent of green stem and foliar retention, a soybean disease recently described in Brazil. This condition can reduce soybean yield by up to 100%. However, little is known about chemical interactions between the plant and pathogen.