By N.K. Srinivasa Rao, K.S. Shivashankara, R.H. Laxman
This e-book brings jointly contemporary advances within the zone of abiotic pressure tolerance in quite a few greens, fruit vegetation, plantation vegetation and tuber plants. the most demanding situations to enhancing the productiveness of horticultural vegetation are the different sorts of abiotic stresses quite often as a result of weather switch on the local and international point. warmth, drought, chilly and salinity are the most important abiotic stresses that adversely have an effect on development and productiveness and will set off a sequence of morphological, physiological, biochemical and molecular adjustments in numerous horticultural vegetation. to this point, there are not any books masking horticultural crop-specific abiotic tension tolerance mechanisms and their administration. Addressing that hole, the booklet is split into 2 sections, the 1st of which highlights contemporary advances within the common points of abiotic pressure tolerance just like the function of hormones, reactive oxygen species, seed remedies, molecular mechanisms of warmth tolerance and heavy steel toxicity, whereas the second one specializes in the abiotic pressure tolerance mechanisms of assorted greens, fruit plants, plantation vegetation and tuber vegetation. It contains complete discussions of fruit plants like mango, grapes, banana, litchi and arid area culmination; greens plants like tomato, capsicum, onion and tuber plants; and plantation plants like coconut, areca nut, oil palm and black pepper. one of the thoughts for plant tension survival, examples of either avoidance and tolerance correct to specific vegetation are tested intimately, supported by means of chosen entire case experiences of growth. As such, the publication bargains a necessary source fitted to scientists and graduate scholars operating within the fields of crop development, genetic engineering, and the abiotic pressure tolerance of horticultural plants.
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Additional resources for Abiotic Stress Physiology of Horticultural Crops
Exogenous application of ABA is effective to increase plant adaptive response to various stress conditions (Marcinska et al. 2013; Javid et al. 2011). However, in some cases, exogenous application of ABA did not increase stress tolerance (Chen and Gusta 1983; Robertson et al. 1987), and this nonresponsive condition to ABA is due to lack of ABA uptake or its degradation by microbes. The stomata aperture is regulated by turgor potential of its surrounding cells. The guard cell volume is actively responsive to signals produced under stress in order to regulate CO2 efflux for photosynthesis and transpirational water loss.
Narayana et al. (1991) also reported more ethylene upon rapid loss of water. Beltrano et al. (1997) observed slight changes in ethylene in leaves under moderate or severe stress conditions. Wright (1980) and Hoffman et al. (1983) showed that ABA interacts with ethylene metabolism by regulating the ACC levels. Ethylene exerts responses through modulation of gene expression function at transcriptional level by ERF (ethylene response factor) by regulating gene expression under abiotic stress conditions (Zhang et al.
Similarly, epibrassinolide treatment to tomato plants prior to high temperature exposure protects rubisco enzyme and RuBP regeneration under heat stress in order to provide better protection against high temperature stress (Ogweno et al. 2008). Chilling tolerance in plants is influenced by brassinosteroids. The report of Huang et al. (2006) showed that epibrassinolide application upregulated 17 proteins which were downregulated by chilling to confer chilling tolerance.
Abiotic Stress Physiology of Horticultural Crops by N.K. Srinivasa Rao, K.S. Shivashankara, R.H. Laxman