Transcriptional, metabolic, physiological and developmental responses of switchgrass to phosphorus limitation.

ABSTRACT: Knowing how switchgrass (Panicum virgatum L.) responds and adapts to phosphorus (P)-limitation will aid efforts to optimize P acquisition and use in this species for sustainable biomass production. This integrative study investigated the impacts of mild, moderate, and severe P-stress on genome transcription and whole-plant metabolism, physiology and development in switchgrass. P-limitation reduced overall plant growth, increased root/shoot ratio, increased root branching at moderate P-stress, and decreased root diameter with increased density and length of root hairs at severe P-stress. RNA-seq analysis revealed thousands of genes that were differentially expressed under moderate and severe P-stress in roots and/or shoots compared to P-replete plants, with many stress-induced genes involve

SUBMITTER: Ding N 

PROVIDER: S-EPMC7821211 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature