Gas exchange, biomass and non-structural carbohydrates dynamics in vines under combined drought and biotic stress.

ABSTRACT:

Background

Intensity of drought stress and pest attacks is forecasted to increase in the near future posing a serious threat to natural and agricultural ecosystems. Knowledge on potential effects of a combined abiotic-biotic stress on whole-plant physiology is lacking. We monitored the water status and carbon metabolism of a vine rootstock with or without scion subjected to water shortening and/or infestation with the sucking insect phylloxera (Daktulosphaira vitifoliae Fitch). We measured non-structural carbohydrates and biomass of different plant organs to assess the stress-induced responses at the root, stem, and leaf level. Effects of watering on root infestation were also addressed.

Results

Higher root infestation was observed in drought-stressed plants compared to well

SUBMITTER: Savi T 

PROVIDER: S-EPMC6749654 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature