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- W2770175704 abstract "Salvia sinaloensis Fern. (sage) is a medicinal plant containing plant secondary metabolites (PSMs) with antioxidant properties. The current study investigated the effects of drought stress on S. sinaloensis morphological and ecophysiological traits, and active constituent production. Sage plants were cultivated in controlled conditions for 34 days and exposed to full irrigation as control, half irrigation, or no irrigation. Changes in growth index (G.I.), dry biomass, leaf water potential (LWP), physiological parameters, active compounds, volatilome (BVOCs) and essential oils (EOs) were determined. Not irrigated plants showed a decrease in total chlorophyll content (~ − 14.7%) and growth (G.I., ~ − 59.4%) from day 18, and dry biomass at day 21 (− 56%), when the complete leaf withering occurred (LWP, − 1.10 MPa). Moderate drought stressed plants showed similar trends for chlorophyll content and growth but kept a constant LWP (− 0.35 MPa) and dry biomass throughout the experiment, as control plants. Carotenoids were not affected by water regimes. The photosynthetic apparatus tolerated mild to severe water deficits, without a complete stomatal closure. Plants under both stress conditions increased the percentage of phenols and flavonoids and showed altered BVOC and EO chemical profiles. Interestingly Camphor, the main EO oxygenated monoterpene, increased in moderate stressed plants while the sesquiterpene hydrocarbon Germacrene D decreased. The same trend was seen in the headspace under stress severity. The data evidenced a possible role of the active molecules in the response of S. sinaloensis plants to drought stress. Taking together, these findings point at S. sinaloensis as a potential drought adaptive species, which could be used in breeding strategies to obtain sages with high quality PSMs, saving irrigation water." @default.
- W2770175704 created "2017-12-04" @default.
- W2770175704 creator A5001949646 @default.
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- W2770175704 creator A5075165262 @default.
- W2770175704 creator A5080380184 @default.
- W2770175704 date "2017-11-22" @default.
- W2770175704 modified "2023-10-16" @default.
- W2770175704 title "Ecophysiological and phytochemical responses of Salvia sinaloensis Fern. to drought stress" @default.
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