In the field, plants experience high light (HL) intensities that are often accompanied by elevated temperatures. Such conditions a serious threat to agriculture production, because photosynthesis is highly sensitive both HL and high-temperature stress. One of potential cellular targets heat stress (HS) combination PSII its degree photoinhibition depends on balance between rate damage (induced stress), repair (impaired under HS). Here, we studied responses Arabidopsis (Arabidopsis thaliana)...

Drought and high temperatures are two major abiotic stress factors that often occur simultaneously in nature, affecting negatively crop performance yield. Moreover, these environmental challenges induce oxidative plants through the production of reactive oxygen species (ROS). Carrizo citrange Cleopatra mandarin citrus genotypes with contrasting ability to cope combination drought heat stress. In this work, a direct relationship between an increased antioxidant activity tolerance is reported....

Abstract Abscisic acid (ABA) plays a key role in plant acclimation to abiotic stress. Although recent studies suggested that ABA could also be important for combination of stresses, its this response is currently unknown. Here we studied the mutants impaired signalling ( abi1-1 ) and biosynthesis aba1-1 water deficit heat Both displayed reduced growth, biomass, survival when subjected stress combination. Focusing on , found although stomata had an deficit, remaining significantly more open...

Abstract Plants are frequently subjected to different combinations of abiotic stresses, such as high light (HL) intensity, and elevated temperatures. These environmental conditions pose a threat agriculture production, affecting photosynthesis, decreasing yield. Metabolic responses plants, alterations in carbohydrates amino acid fluxes, play key role the successful acclimation plants directing resources toward stress responses, suppressing growth. Here we show that primary metabolic response...

Mediterranean basin and other citrus-growing areas, such as Florida or California, are among the most vulnerable regions to impacts of global warming. Therefore, citrus will be likely subjected increasing periods water scarcity combined with high temperatures that impair plant growth, development yield. In industry, grafting is used improve varietal characteristics, abiotic stress tolerance. Previous research showed under drought heat conditions, Carrizo citrange (Poncirus trifoliata ×...

SUMMARY Plants growing under natural conditions experience high light (HL) intensities that are often accompanied by elevated temperatures. These could affect photosynthesis, reduce yield, and negatively impact agricultural productivity. The combination of different abiotic challenges creates a new type stress for plants generating complex environmental exceed the their individual parts. Transcription factors (TFs) play key role in integrating molecular signals generated multiple conditions,...

Abstract Key message The activation of the antioxidant system under stress combination is a transmissible trait from rootstock to scion. Therefore, selection key improve crop performance and sustainable production changing climate conditions. Climate change altering weather conditions such as mean temperatures precipitation patterns. Rising temperatures, especially in certain regions, accelerates soil water depletion increases drought risk, which affects agriculture yield. Previously, our...

Plants growing in the field are subjected to multiple stress factors acting simultaneously. Abnormally high temperatures expected affect wild plants and crops next years due global warming. In this work, we have studied physiological, hormonal molecular responses of citrus rootstock, Carrizo citrange ( Poncirus trifoliata L. Raf. × Citrus sinensis Osb.) wounding or salinity occurring individually combination with heat stress. According our results, aggravated negative effects salt...

Drought, heat and high irradiance are abiotic stresses that negatively affect plant development reduce crop productivity. The confluence of these three factors is common in nature, causing extreme situations for plants compromise their viability. Drought increase the saturation photosystem reaction centers, increasing sensitivity to irradiance. In addition, stress conditions II (PSII) integrity, alter redox balance electron transport chain decrease photosynthetic rate. Here, we studied...

Plants grown in natural environment are regularly subjected to different combinations of abiotic stresses. Recent studies revealed that citrus plants a combination severe drought and high temperatures displayed specific physiological, hormonal, molecular metabolic responses. In the present study, we have performed long‐term experiment combining moderate heat Cleopatra mandarin evaluate impact stress‐sequence, intensity duration. Our results support previous observation sensitivity stresses...

Environmental changes derived from global warming and human activities increase the intensity frequency of stressful conditions for plants. Multiple abiotic factors acting simultaneously enhance stress pressure drastically reduce plant growth, yield, survival. Stress combination causes a specific situation that induces particular response different to sum responses individual stresses. Here, by comparing transcriptomic proteomic profiles combinations in two citrus genotypes, Carrizo citrange...

La citricultura actual está amenazada por el cambio climático. El incremento de las temperaturas, junto a la aparición otros fenómenos climáticos adversos, modifica condiciones ambientales regiones donde se han desarrollado variedades citrícolas actuales. Los efectos perjudiciales sobre fisiología y producción los cítricos que tienen estos factores como sequía o salinidad del suelo, incrementarán debido altas lo pondrá en riesgo cultivo y, casos extremos, incluso supervivencia plantas....

ABSTRACT Plants are frequently subjected to different combinations of abiotic stresses, such as high light intensity and elevated temperatures. These environmental conditions pose an important threat agriculture production, affecting photosynthesis decreasing yield. Metabolic responses plants, alterations in carbohydrates amino acid fluxes, play a key role the successful acclimation plants directing resources towards stress suppressing growth. Here we show that primary metabolic response...

Abstract Long-term subculture plays an essential role in the large-scale multiplication and production of somatic plantlets. We investigated effects long-term on vitro shoot development ex rooting associated with changes hormones protein profiles C. fissilis . The number subcultures shoots induced a decrease response. reduction adventitious root (AR) formation was decreases contents indole-3-acetic acid (IAA), abscisic (ABA), 12-oxo phytodienoic (OPDA), putrescine (Put), spermine increases...