Submission Deadline: 30 June 2022 (closed)

Prof. Dr. Hossam S. El-Beltagi, King Faisal University, Al-Ahsa, Saudi Arabia. helbeltagi@kfu.edu.sa; Cairo University, Giza, Egypt. helbeltagi@agr.cu.edu.eg

Prof. Dr. Mohamed M. El-Mogy, Cairo University, Giza, Egypt. elmogy@agr.cu.edu.eg
Abiotic
stress includes all adverse conditions for plant growth such as extreme either
high or low temperature, radiation, salinity, humidity, drought, heavy metals
toxicity, or all other unaffordable environmental conditions. Many previous
works studied the influence of abiotic stress treatments on growth, production,
gene expression, secondary metabolites and antioxidant enzymes of fruits and vegetables
crops. However, limited works investigated the effects of abiotic stress
treatments on quality, postharvest behaviour, storage ability, molecular
response, antioxidants and bioactive compounds content of fresh fruits and vegetables
crops.
The main quality parameters of fresh products are color, flavour, texture, and nutritive value. Color is mainly related to natural pigments such as chlorophylls, carotenoids, and anthocyanins. Additionally, there are some compounds such as volatile and non-volatile compounds which are mainly responsible for flavour besides the taste. Pectic substances (the main components of cell wall structure) and turgor pressure of cell wall are the main two factors responsible for the texture. Nutritive value contains several important chemical compositions for human health including sugars, organic acids, minerals, antioxidants, phenolic compounds, and vitamins.
This special issue aims to present works that include the influence of abiotic stress treatments on the quality, molecular responses, postharvest behaviour, bio-chemical changes, senescence, and storability of fruits and vegetables crops. We welcome novel original research papers, short communications and reviews which are concentrated on the physiological and molecular responses of fruits and vegetables crops against all abiotic stresses.
- OPEN ACCESS ARTICLE
- Response of Tomato Sugar and Acid Metabolism and Fruit Quality under Different High Temperature and Relative Humidity Conditions
- Phyton-International Journal of Experimental Botany, Vol.91, No.9, pp. 2033-2054, 2022, DOI:10.32604/phyton.2022.019468
- (This article belongs to this Special Issue: Effect of Abiotic Stress Treatments on the Antioxidants Activities, Secondary Metabolites and Postharvest Physico-Chemical Properties of Fruits and Vegetables)
- Abstract The combined stress of high temperature and high relative air humidity is one of the most serious agrometeorological disasters that restricts the production capacity of protected agriculture. However, there is little information about the precise interaction between them on tomato fruit quality. The objectives of this study were to explore the effects of the combined stress of high temperature and relative humidity on the sugar and acid metabolism and fruit quality of tomato fruits, and to determine the best relative air humidity for fruit quality under high temperature environments. Four temperature treatments (32°C, 35°C, 38°C, 41°C), three relative air humidity… More
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