Multifaceted natural drought response mechanisms in three elite date palm cultivars uncovered by expressed sequence tags analysis.

ABSTRACT: This study extends our prior research on drought responses in three date palm cultivars (Khalas, Reziz, and Sheshi) under controlled conditions. Here, we investigated their drought stress adaptive strategies under ambient environment. Under natural field drought conditions, three date palm cultivars experienced significantly (p ≤ 0.05) varying regulations in their physiological attributes. Specifically, chlorophyll content, leaf RWC, photosynthesis, stomatal conductance, and transpiration reduced significantly, while intercellular CO₂ concentration and water use efficiency increased. Through suppression subtraction hybridization (SSH), a rich repertoire (1026) of drought-responsive expressed sequence tags (ESTs) were identified: 300 in Khalas, 343 in Reziz, and 383 in Sheshi. Fu

SUBMITTER: Iqbal Z 

PROVIDER: S-EPMC11455940 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature