Xylem embolism refilling revealed in stems of a weedy grass.

ABSTRACT: Plant hydraulic dysfunction by embolism formation can impair photosynthesis, growth, and reproduction and, in severe cases, lead to death. Embolism reversal, or "refilling," is a hypothesized adaptive process in which xylem functionality is rapidly and sustainably restored. This study investigated xylem embolism refilling during recovery from severe drought stress using entirely noninvasive measurements of the same plants. These results were considered in relation to functional traits to address long-standing gaps in understanding the consequences of severe drought stress. Leaf and stem xylem embolism as well as transpiration, photosynthesis, and stem water potential were characterized nondestructively on intact barnyard grass plants during an acute drought event. Plants were rewatered and

SUBMITTER: Stewart JJ 

PROVIDER: S-EPMC12002171 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature