Genotype-specific transcriptomic response to drought stress in potato cultivars modulated by microbial biostimulants.

ABSTRACT:

Background

Drought is a major abiotic stress that significantly limits potato productivity and tuber quality. Microbial biostimulants have emerged as promising tools to improve crop resilience and promote sustainable agriculture. This study aimed to investigate the transcriptomic response to severe drought stress in three potato cultivars (Camelia, Cicero, and Agata) characterized by differing polyphenol content. In addition, the potential mitigating effects of a microorganism-based biostimulant mixture composed by two Trichoderma species, were evaluated.

Results

Severe drought stress led to a significant reduction in tuber yield in Camelia and Agata, whereas Cicero exhibited greater tolerance. Application of the microbial biostimulant slightly alleviated yield loss in Camel

SUBMITTER: Tamburino R 

PROVIDER: S-EPMC12751368 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature