The Role of Sugars in Plant Responses to Stress and Their Regulatory Function during Development—3rd Edition
A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".
Deadline for manuscript submissions: 31 December 2024 | Viewed by 3054
Special Issue Editors
Interests: metabolic and ultrastructural responses of plants to sugar starvation; the role of saccharides in plant defense response to fungal pathogens; the involvement of sugars in regulation of the level of endogenous signaling molecules; effect of saccharides and nitric oxide on the mechanism regulating flavonoid biosynthesis; sugars and reactive oxygen species; sweet immunity; sugar metabolism and fruit development; the role of signaling molecules in plant defense response to aphids; the cross-talk between the abiotic and biotic factors on the generation of phytohormones and expression of genes involved in their biosynthesis
Special Issues, Collections and Topics in MDPI journals
Interests: phytoalexins; chemistry of natural products; secondary metabolites; plant defences
Special Issues, Collections and Topics in MDPI journals
Interests: molecular, biochemical, and physiological mechanisms of plant responses to pathogens and pests especially reactive oxygen and nitrogen species; enzymatic and non-enzymatic antioxidants; sugars as signaling molecules; regulation of proteolysis and nitrogen metabolism; additional research topics concern the plant abiotic stress especially metallic trace elements and mechanisms of combined stresses
Special Issues, Collections and Topics in MDPI journals
Interests: the involvement of sugars in the regulation of the level of endogenous signalling molecules; the effect of saccharides and nitric oxide on the mechanism regulating flavonoid biosynthesis; sweet immunity; the role of signalling molecules in lupine defense response to fungal pathogen
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Owing to their regulatory function, sugars affect all phases of the life cycle of plants, interacting with other signaling molecules, including phytohormones, to control plant growth and development. The level of sugars in plant cells and their transport, utilization, and storage are precisely regulated and strongly dependent on cell physiological activity, plant organ, environmental conditions, and plant developmental stage during ontogenesis; it is also tightly controlled by sugar transporters and enzymes. The plant’s ability to monitor and respond to the cellular level of sugars may act as a controlling mechanism, integrating the influence of environmental conditions with internal developmental programs, directly regulated by phytohormones. Many environmental stimuli may influence various biochemical reactions, frequently interfering with the balanced distribution of these metabolites within plant cells and their transport from source organs to sink organs. Numerous studies have also shown that sugars play a key role in plant defense responses to various stress factors, both abiotic and biotic. It is well documented that sugars are not only the main substrates utilized in respiration processes, supplying energy for cellular defense responses against pathogens, but also provide the carbon skeleton for the synthesis of defense compounds, including secondary metabolites such as flavonoids, stilbenes, and lignins. Moreover, saccharides such as sucrose, glucose, fructose, and trehalose function as metabolic signaling molecules in host plant cells and induce the expression of many genes, including defense genes. Sugar signals may contribute to plant immune responses against pathogens and probably function as priming molecules, leading to pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) and effector-triggered immunity (ETI) in plants. It has been demonstrated that the presence of sucrose and monosaccharides enables plants to stimulate efficient defense mechanisms against fungal pathogens. This is consistent with the novel concept of “sweet immunity” that postulates specific key roles of saccharides, which act as priming agents that induce resistance in higher plants to counteract both biotic and abiotic stresses. Recent progress in sugar research has provided important evidence on the contribution of fructans both in the adaptation of plants to abiotic stress and in plant immune responses against pathogens. Also, lately it has been demonstrated that far red in the light spectrum mediated carbohydrate concentration in the main photosynthetic organs and influences sugar translocation in plants. All papers submitted to this Special Issue will underline the central role of sugars in plant defense responses to stresses as well as the impact of climatic conditions on the relationship between sugar metabolism and yielding. Additionally, papers on the involvement of sugars as signaling molecules in the processes regulating growth and development are welcome. Original and review papers dealing with all the above aspects of sugars are welcome for inclusion in this Special Issue of the International Journal of Molecular Sciences.
Prof. Dr. Iwona Morkunas
Prof. Dr. Philippe Jeandet
Dr. Mateusz Labudda
Dr. Magda Formela-Luboińska
Guest Editors
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Keywords
- sugar signaling
- abiotic stress tolerance
- biotic stress
- plant responses
- developmental regulation
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