Potential Mechanisms of Abiotic Stress Tolerance in Crop Plants Induced by Thiourea

Waqas, Muhammad; Kaya, Cengiz; Riaz, Adeel; Farooq, Muhammad; Nawaz, Iqra; Wilkes, Andreas; Li, Yue

doi:10.3389/fpls.2019.01336

Cited by 215 publications

(109 citation statements)

References 112 publications

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“…Recently many several other compounds that can regulate many facets of plant growth and development have been described. These new compounds are brassinosteoriods, jasmonates, polyamines, salicylates, juglones, peptide hormones, phospholipids and vitamins (Olaiya et al, 2013;Janeczko et al, 2015;Kumar et al, 2013;Sita et al, 2017;Waqas et al, 2019). These bio-regulators act at very low concentration and any exogenous application of these influences the processes of growth and development which are being coordinated by the phytohormones in plants.…”

Section: Bio-regulators and Their Mode Of Actionmentioning

confidence: 99%

“…Abiotic factors are major yield-limiting factors for the crop plants. About 90% of arable lands are prone to various kinds of stresses which cause up to 70% yield losses in food crops (Waqas et al, 2019). Very little attention has been given to the physiological processes which limit the crop productivity.…”

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confidence: 99%

“…Bio-regulators role in the plants include seed germination and dormancy, plant development, embryogenesis, growth, flowering, fruit development and senescence (Raskin, 1992a and b;Wahid et al, 2007;Kumar et al, 2013;Kumar and Sarlach, 2020); plant defense mechanisms; abiotic stress Plant Bio-regulators for Enhancing Grain Yield and Quality of Legumes: A Review management due to heat/cold/salinity (Mandavia et al, 2010;Kumar and Sarlach, 2020;Khan et al, 2020), growth hormone biosynthesis and signal transduction (Olaiya et al, 2013;Waqas et al, 2019), quality improvement of the grains (Field et al, 1989;Upadhyay, 1994;Kumar and Sarlach, 2015) and enhancement of the yield of the crops (Garg et al, 2006;Jeyakumar et al, 2008;Kumar et al, 2013;Meena et al, 2016). In the last 30-years much of the work has been done on the application of bio-regulators for improving the vegetative growth and yield of the crops including legumes.…”

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Plant Bio-regulators for Enhancing Grain Yield and Quality of Legumes: A Review

Kumar¹

2020

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Plant bio-regulators (PBRs) are hormone-like natural or synthetic compounds that are able to increase the yields, alter growth patterns, nutritional qualities and provide resistance to various kinds of stresses (cold, heat, drought, insect, diseases, salinity) when applied at very low concentration to the plants. PBRs are known to enhance source-sink relationship and help in stimulating the photosyntheates thereby reduce flower drop, helps in fruit and seed development in better way ultimately improving the yield of the crops. Nowadays, abiotic stresses are major factors limiting crop productivity and sustainability throughout the globe. Bio-regulators application on crops induces long-term thermo tolerance (heat and cold) in plants as these can modulate plant responses to stresses at the cellular, tissue or organ level and hence are able to enhance the yield, quality and nutritional aspects of the food and forage legumes in the changing climatic scenario. Application of bio-regulators on crops is farmer friendly, convenient and effective approach for improving the productivity and quality of legume crops. The influence of some of the important plant bioregulators on growth, yield, quality and stress management in important food and forage legume crops are reviewed in this article.

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Section: Bio-regulators and Their Mode Of Actionmentioning

confidence: 99%

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confidence: 99%

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Plant Bio-regulators for Enhancing Grain Yield and Quality of Legumes: A Review

Kumar¹

2020

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“…These stresses not only play a major role in determining the crop yield and productivity but they also contribute to the differential distribution of plant species across different parts of the earth [4]. About 90% of the arable lands around the globe are susceptible to one or more of the above stresses causing up to 70% annual yield loss of major food crops [5]. The changing climate is further aggravating the impact of abiotic stress factors on the overall growth and development of various crops [6].…”

Section: Introductionmentioning

confidence: 99%

Abiotic Stress Responses in Plants: Current Knowledge and Future Prospects

Marothia¹,

Kaur²,

Pati³

2021

Abiotic Stress in Plants

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Exposure to abiotic stresses has become a major threatening factor that hurdles the sustainable growth in agriculture for fulfilling the growing food demand worldwide. A significant decrease in the production of major food crops including wheat, rice, and maize is predicted in the near future due to the combined effect of abiotic stresses and climate change that will hamper global food security. Thus, desperate efforts are necessary to develop abiotic stress-resilient crops with improved agronomic traits. For this, detailed knowledge of the underlying mechanisms responsible for abiotic stress adaptation in plants is must required. Plants being sessile organisms respond to different stresses through complex and diverse responses that are integrated on various whole plants, cellular, and molecular levels. The advanced genetic and molecular tools have uncovered these complex stress adaptive processes and have provided critical inputs on their regulation. The present chapter focuses on understanding the different responses of the plants involved in abiotic stress adaptation and strategies employed to date for achieving stress resistance in plants.

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“…Among the major abiotic stresses, soil and water salinity pose a serious threat to limit yield in agriculture all over the world, and are particularly critical in semi-arid and arid regions (Waqas et al 2019;Minhas et al 2020). In 2019, Brazil was the leading global producer of passion fruit with output of approximately 602 thousand metric tonnes (IBGE 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of salinity on growth, physiological and anatomical traits of Passiflora species propagated from seeds and cuttings

et al. 2020

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Salinity of the soil and irrigation water is one of the main factors limiting the growth of plants. The objective of this study was to assess the biometric, physiological and anatomical responses of passion fruit species Passiflora spp. propagated from cuttings and seeds under various salinity conditions. A completely randomized factorial design was used, with three species (P. edulis Sims, P. gibertii N.E.Br. and P. cincinnata Mast.), five salt concentrations (0.3, 1.8, 3.3, 4.8, and 6.3 dS m −1) and two propagation methods (cuttings and seeds), with twelve repetitions each. There was a negative effect of rising levels of NaCl for the majority of biometric and physiological traits evaluated. The species propagated from seeds presented the most severe morphophysiological and anatomical alterations under salinity. P. edulis (the most commonly cultivated species) showed the greatest morphophysiological changes under salinity, inducing larger stem diameter, chlorophyll content index, total water consumption, root dry weight, shoot dry weight, total dry weight, root dry weight/shoot dry weight ratio, root length and volume and also more severe anatomical alterations, such as midrib cell disorganization, greater thickness of palisade parenchyma, lower intercellular volume in the spongy parenchyma and greater deposition of calcium oxalate in the leaves and roots. On the other hand, the wild species, P. cincinnata and P. gibertii, were more tolerant to salinity, with less severe biometric, physiological and anatomical changes.

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Potential Mechanisms of Abiotic Stress Tolerance in Crop Plants Induced by Thiourea

Cited by 215 publications

References 112 publications

Plant Bio-regulators for Enhancing Grain Yield and Quality of Legumes: A Review

Plant Bio-regulators for Enhancing Grain Yield and Quality of Legumes: A Review

Abiotic Stress Responses in Plants: Current Knowledge and Future Prospects

Effects of salinity on growth, physiological and anatomical traits of Passiflora species propagated from seeds and cuttings

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