Physiological Responses of Plants to Combined Drought and Heat under Elevated CO2

TY - JOUR

T1 - Physiological Responses of Plants to Combined Drought and Heat under Elevated CO2

AU - Abdelhakim, Lamis

AU - Zhou, Rong

AU - Ottosen, Carl-Otto

PY - 2022/10

Y1 - 2022/10

N2 - Anthropogenic activities over the last century have caused rapid changes in environmental conditions through increasing CO 2 emissions in the atmosphere that contribute to global warming. Moreover, the increased global average temperature is linked with changes in the precipitation rate and distribution, resulting in a negative impact on crop health and productivity. Plants in nature often experience combined stresses; therefore, they have developed adaptive mechanisms to cope with fluctuating environmental conditions. Thus, investigating plant responses under unfavorable environmental conditions will provide a better understanding of how crops can adapt and thereby assist in selecting climate-resilient crops that can withstand climate variability. This review highlights the main adaptive physiological and biochemical responses of crops grown under elevated CO 2 (eCO 2) and exposed to combined abiotic stresses (drought and heat). Moreover, the mitigation and limitation impact of elevated CO 2 on plants under the combination of stress is discussed.

AB - Anthropogenic activities over the last century have caused rapid changes in environmental conditions through increasing CO 2 emissions in the atmosphere that contribute to global warming. Moreover, the increased global average temperature is linked with changes in the precipitation rate and distribution, resulting in a negative impact on crop health and productivity. Plants in nature often experience combined stresses; therefore, they have developed adaptive mechanisms to cope with fluctuating environmental conditions. Thus, investigating plant responses under unfavorable environmental conditions will provide a better understanding of how crops can adapt and thereby assist in selecting climate-resilient crops that can withstand climate variability. This review highlights the main adaptive physiological and biochemical responses of crops grown under elevated CO 2 (eCO 2) and exposed to combined abiotic stresses (drought and heat). Moreover, the mitigation and limitation impact of elevated CO 2 on plants under the combination of stress is discussed.

KW - drought

KW - elevated CO

KW - heat stress

KW - plant adaptations

KW - plant physiology

KW - wheat

U2 - 10.3390/agronomy12102526

DO - 10.3390/agronomy12102526

M3 - Review

SN - 2073-4395

VL - 12

JO - Agronomy

JF - Agronomy

IS - 10

M1 - 2526

ER -