Sohini Guha

This study compares dry and mucoid Sinorhizobium meliloti isolates, finding dry strains have higher soil fitness but mucoid strains provide greater host benefits.

The paper investigates whether alfalfa can select beneficial nitrogen-fixing bacteria from a field population, finding weak selection for beneficial strains in two of three varieties.

This study investigates how host mutations affect rhizobial fitness by inoculating Medicago truncatula mutants with Sinorhizobium meliloti strains, revealing host-by-strain interactions and identifying key rhizobial genes involved in fitness responses.

This study examines how genetic variation in alfalfa and rhizobial bacteria affects nodule morphology and symbiotic outcomes, finding host and bacterial genetic influences on nodule structure and mutualistic benefits.

The paper uses BONCAT to study microbial activity in soil-to-root gradients, finding that rhizosphere activity predicts endosphere colonization success.