Comparative physiological and transcriptome analysis between potassium-deficiency tolerant and sensitive sweetpotato genotypes in response to potassium-deficiency stress.

ABSTRACT:

Background

Sweetpotato is a typical ''potassium (K⁺) favoring'' food crop, which root differentiation process needs a large supply of potassium fertilizer and determine the final root yield. To further understand the regulatory network of the response to low potassium stress, here we analyze physiological and biochemical characteristics, and investigated root transcriptional changes in two sweetpotato genotypes, namely, - K tolerant "Xu32" and - K susceptible"NZ1".

Result

We found Xu32 had the higher capability of K⁺ absorption than NZ1 with better growth performance, higher net photosynthetic rate and higher chlorophyll contents under low potassium stress, and identified 889 differentially expressed genes (DEGs) in Xu32, 634 DEGs in NZ1, 256 common DEG

SUBMITTER: Jin R 

PROVIDER: S-EPMC10789036 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature