Physiological adjustments of temperate tree species and herbs in response to low root temperatures.

ABSTRACT: Hydraulic constraints induced by low root temperature might be a major cause for the low temperature limit of plants. However, to date most of our knowledge on the physiological effects of low root temperatures is derived from short-term lab experiments, with very limited information on potential adjustments to continuous low temperature stress. In this study, we quantified the cold sensitivity of root water uptake and transport to leaves in seedlings of different functional plant types (conifers, broadleaved trees and annual herbs) by 2H-H2O labeling after exposure to three constant root temperatures (15 °C, 7 °C and 2 °C) but the same higher aboveground temperatures (between 20 and 25 °C). We investigated changes in the cold sensitivity of roots after 0, 10 and 20 days prolonged exposure

SUBMITTER: Li Y 

PROVIDER: S-EPMC11922318 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature