Chitosan induced cold tolerance in <i>Kobresia pygmaea</i> by regulating photosynthesis, antioxidant performance, and chloroplast ultrastructure.

ABSTRACT:

Introduction

Cold stress is the primary factor that limits the growth and development of Kobresia pygmaea in the Tibetan Plateau, China. Chitosan (CTS) has been recognized for its ability to enhance agricultural production and tolerance to stress.

Methods

This study examined the effect of treating seedlings under cold stress with chitosan.

Results and discussion

The results demonstrated that cold stress inhibited the growth of seedlings and adversely affected the photosynthetic capacity [net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), maximum efficiency of photosystem II (Fv/Fm), quantum yield of photosystem II (φ _PSII ), electron transport rate (ETR), and non-light-induced non-phot

SUBMITTER: Li S 

PROVIDER: S-EPMC11614638 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature