Sugar transporters and their molecular tradeoffs during abiotic stress responses in plants

Abstract

Sugars as photosynthates are well known as energy providers and as building blocks of various structural components of plant cells, tissues and organs. Additionally, as a part of various sugar signaling pathways, they interact with other cellular machinery and influence many important cellular decisions in plants. Sugar signaling is further reliant on the differential distribution of sugars throughout the plant system. The distribution of sugars from source to sink tissues or within organelles of plant cells is a highly regulated process facilitated by various sugar transporters located in plasma membranes and organelle membranes, respectively. Sugar distribution, as well as signaling, is impacted during unfavorable environments such as extreme temperatures, salt, nutrient scarcity, or drought. Here, we have discussed the mechanism of sugar transport via various types of sugar transporters as well as their differential response during environmental stress exposure. The functional involvement of sugar transporters in plant's abiotic stress tolerance is also discussed. Besides, we have also highlighted the challenges in engineering sugar transporter proteins as well as the undeciphered modules associated with sugar transporters in plants. Thus, this review provides a comprehensive discussion on the role and regulation of sugar transporters during abiotic stresses and enables us to target the candidate sugar transporter(s) for crop improvement to develop climate‐resilient crops.

Antimicrobial Potential of Essential Oils from Aromatic Plant Ocimum sp.; A Comparative Biochemical Profiling and In-Silico Analysis

“…Plants exposure to (a)biotic stress, including extreme temperatures, drought, flooding, bacterial and fungal infection, etc., disturbs cellular functionality that limits their growth and development and eventually reduces the crop yield and quality. These stressors disturb the cellular and metabolic processes by altering the phytohormone signalling, transcriptional regulation, and signalling cascade, which eventually results in compromised growth and productivity of plants [17][18][19][20][21]. The impact of biotic stress has resulted in a huge loss to the global economy and intensifies the issues of hunger and food insecurity.…”

Comparative Transcriptome Analysis Revealing the Potential Mechanism of Low-Temperature Stress in Machilus microcarpa

“…Sugars play an important role in plant cold tolerance and can function as signal molecules, participating in growth and various stress responses in plants (Yang et al, 2019 ; Saksena et al, 2020 ; Salvi et al, 2022 ). Many genes related to sugar synthesis have been identified in Arabidopsis , and these genes show differential expression during cold tolerance (Fowler and Thomashow, 2002 ).…”

Advancement in the molecular perspective of plant-endophytic interaction to mitigate drought stress in plants

“…Such an increase in WUE for a particular duration of drought through the stomatal regulation is also accompanied by an increase in root to shoot ratio. While for the tolerant stratagem, plants accumulate diverse anti-stress proteins and osmolytes, modulate sugar metabolism as well as transport to stabilize the cellular integrity during water-deficit conditions (Salvi et al, 2018(Salvi et al, , 2022Volaire, 2018;Ghosh et al, 2020).…”