The Role of Sugars in Plant Responses to Stress and Their Regulatory Function during Development Volume 2
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: closed (31 December 2022) | Viewed by 8841
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,
Sugars, owing to their regulatory function, affect all phases of the life cycle of plants interacting with other signal molecules, including phytohormones, and control plant growth and development. The level of sugars in plant cells, 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 carbohydrate metabolism enzymes. The plant’s ability to monitor and respond to the level of sugars may act as a controlling mechanism, integrating the influence of environmental conditions with internal developmental programs, directly controlled by phytohormones. Environmental stimuli may influence various biochemical pathways, frequently interfering with the balanced distribution of sugars within plant cells and their transport from source organs to sink organs. It has been demonstrated that the level of sugar affects both the profile and the concentration of other primary and secondary metabolites and protein expression profiles. Numerous studies have also shown that sugars play a key role in plant defense responses to various abiotic and biotic stress factors. 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. Besides, saccharides, such as sucrose, glucose, fructose and trehalose, represent metabolic signalling molecules in host plant cells that induce 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 patterns (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 to saccharides which act as priming agents inducing 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 in the adaptation of plants towards abiotic stress as well as in the plant immune responses against pathogens. We encourage Authors to submit original or review research papers that further demonstrate the sweet immunity concept.
All the 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, plant development and yielding. Additionally, papers regarding the involvement of sugars as signal molecules and their interaction with other signal molecules in the processes regulating growth and development will be welcome. Moreover, research on sugar-dependent gene expression, as a direct consequence of sugar signalling and understanding of sugar-dependent plant responses will be interesting. Original and review papers dealing with all the above aspects of sugars are welcome for inclusion in this Special Issue of International Journal of Molecular Sciences.
Prof. Dr. Iwona Morkunas
Prof. Dr. Philippe Jeandet
Dr. Magda Formela-Luboińska
Dr. Mateusz Labudda
Guest Editors
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Keywords
- sugar signaling
- sugar-dependent gene expression
- abiotic stress tolerance
- biotic stress
- plant responses
- development regulation
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