Morphological, physiological and biochemical aspects of zinc seed priming-induced drought tolerance in faba bean

Farooq, Muhammad; Almamari, Sara Ali Darwish; Rehman, Abdul; Al-Busaidi, Walid M.; Wahid, Abdul; Alghamdi, Salem S.

doi:10.1016/j.scienta.2021.109894

Cited by 23 publications

(22 citation statements)

References 35 publications

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“…A similar effect of Zn application on the grain yield of wheat was also reported by Meena et al [49]. The results of a study by Farooq et al [50] showed that the seed treatment of bean with Zn improved seed germination, which was attributed to the increase of α-amylase activity. Stimulating effects of the Zn supply on seed yield and germination have also been reported in other plants.…”

Section: Seed Traitssupporting

confidence: 76%

Improvement of Growth, Yield, Seed Production and Phytochemical Properties of Satureja khuzistanica Jamzad by Foliar Application of Boron and Zinc

Mumivand

Khanizadeh

Morshedloo

et al. 2021

Plants

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Satureja khuzistanica Jamzad is a valuable and endemic medicinal plant. Boron and zinc are essential elements for the vegetative and reproductive growth of plants and have significant effects on yield, essential oil composition and the seed production of plants. To investigate the effects of the foliar application of zinc and boron on the growth, yield, seed production and phytochemical properties of S. khuzistanica, a study was conducted in a factorial experiment with three replicates in two consecutive years based on a randomized complete block design. The foliar application of boron (B) at three concentrations (control or distilled water, 0.4% and 0.8% as H3BO3) and zinc (Zn) at three concentrations (control or distilled water, 0.3% and 0.6% as ZnSO4) was carried out. Our results showed that the foliar application of B resulted in a significant increase in the fresh and dry weights of plants, the dry weight of stems, drug yield, seed yield, seed germination and 1000-seed weight. At the same time, the application of B resulted in a significant decrease in seed emptiness. The fresh and dry weights of plants, drug yield, seed yield, 1000-seed weight and seed germination were also significantly improved by Zn foliar spraying compared to the control. Application of 0.8% B resulted in a significant decrease in seed emptiness by 14.16% and 22.37%, as compared to the control. The foliar spraying of B and Zn improved the total phenolic content, the essential oil content and the yield and antioxidant activity of S. khuzistanica. Moreover, B application generally concentrated more carvacrol in the essential oil (in the first experimental year). In contrast, no significant differences were observed between Zn treatments in carvacrol content and total flavonoids. The use of several microelements, such as B and Zn, could improve both the quantity and quality of S. khuzistanica. Additionally, improvement of seed set and seed quality by the foliar spraying of Zn and B may be useful for growing plants in arid and semi-arid areas.

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Section: Seed Traitssupporting

confidence: 76%

Improvement of Growth, Yield, Seed Production and Phytochemical Properties of Satureja khuzistanica Jamzad by Foliar Application of Boron and Zinc

Mumivand

Khanizadeh

Morshedloo

et al. 2021

Plants

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“…The overaccumulation of ROS (O 2 − and H 2 O 2 ) and the aggravation of membrane lipid peroxidation were observed in our current study when white clover seeds germinated under water-limited conditions. Previous study has found that zinc priming ameliorated adverse effects of drought stress associated with enhancement in total antioxidant capacity and reduction in membrane lipid peroxidation during seed germination [ 19 ]. In addition, the regulatory role of CTS in activating the antioxidant defense system to scavenge free radicals has also been reported in response to water stress.…”

Section: Discussionmentioning

confidence: 99%

“…Seed priming with bioactive compounds or elements such as zinc, γ-aminobutyric acid (GABA), putrescine (Put), diethyl aminoethyl hexanoate (DA-6), or spermidine (Spd) has been proven as an effective way to improve seed germination under normal and stressful conditions [ 19 , 20 , 21 , 22 , 23 ]. Previous studies have found that chitosan-black soybean seed-coat extract exhibited strong antioxidant property, and CTS coating could effectively improve seed germination, seedling growth, and resistance to pests under normal condition [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Seed Priming with Chitosan Improves Germination Characteristics Associated with Alterations in Antioxidant Defense and Dehydration-Responsive Pathway in White Clover under Water Stress

Ling

Zhao

Cheng

et al. 2022

Plants

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Water stress decreases seed-germination characteristics and also hinders subsequent seedling establishment. Seed priming with bioactive compounds has been proven as an effective way to improve seed germination under normal and stressful conditions. However, effect and mechanism of seed priming with chitosan (CTS) on improving seed germination and seedling establishment were not well-understood under water-deficit conditions. White clover (Trifolium repens) seeds were pretreated with or without 5 mg/L CTS before being subjected to water stress induced by 18% (w/v) polyethylene glycol 6000 for 7 days of germination in a controlled growth chamber. Results showed that water stress significantly decreased germination percentage, germination vigor, germination index, seed vigor index, and seedling dry weight and also increased mean germination time and accumulation of reactive oxygen species, leading to membrane lipid peroxidation during seed germination. These symptoms could be significantly alleviated by the CTS priming through activating superoxide dismutase, catalase, and peroxidase activities. In addition, seeds pretreated with CTS exhibited significantly higher expression levels of genes encoding dehydration-responsive transcription factors (DREB2, DREB4, and DREB5) and dehydrins (Y2K, Y2SK, and SK2) than those seeds without the CTS priming. Current findings indicated that the CTS-induced tolerance to water stress could be associated with the enhancement in dehydration-responsive pathway during seed germination.

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“…Climate change has generally increased the frequency and intensity of drought in the world's arable soils, thereby restricting crop yields (Fahad et al, 2017; Potopová et al, 2016). Crop productivity is also influenced by its nutritional status such as phosphorus (P) deficiency, which alters plant physiological functions and limits yields (Bista et al, 2018; Farooq et al, 2021). Drought stress and P deficiency frequently co‐occur since any restriction in transpiration limits the uptake of water and nutrients, and may cause agronomic effects that cannot be predicted from analysis of individual stress factors (Bista et al, 2018; Suzuki et al, 2014; Xia et al, 2020; Xu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Rhizosheath: An adaptive root trait to improve plant tolerance to phosphorus and water deficits?

Aslam

Karanja

Dodd

et al. 2022

Plant Cell & Environment

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Drought and nutrient limitations adversely affect crop yields, with below-ground traits enhancing crop production in these resource-poor environments. This review explores the interacting biological, chemical and physical factors that determine rhizosheath (soil adhering to the root system) development, and its influence on plant water uptake and phosphorus acquisition in dry soils. Identification of quantitative trait loci for rhizosheath development indicate it is genetically determined, but the microbial community also directly (polysaccharide exudation) and indirectly (altered root hair development) affect its extent. Plants with longer and denser root hairs had greater rhizosheath development and increased P uptake efficiency. Moreover, enhanced rhizosheath formation maintains contact at the rootsoil interface thereby assisting water uptake from drying soil, consequently improving plant survival in droughted environments. Nevertheless, it can be difficult to determine if rhizosheath development is a cause or consequence of improved plant adaptation to dry and nutrient-depleted soils. Does rhizosheath development directly enhance plant water and phosphorus use, or do other tolerance mechanisms allow plants to invest more resources in rhizosheath development? Much more work is required on the interacting genetic, physical, biochemical and microbial mechanisms that determine rhizosheath development, to demonstrate that selection for rhizosheath development is a viable crop improvement strategy. K E Y W O R D S alternate wetting and drying cycles, drought, QTLs, water uptake 1 | INTRODUCTIONClimate change has generally increased the frequency and intensity of drought in the world's arable soils, thereby restricting crop yields (Fahad et al., 2017;Potopová et al., 2016). Crop productivity is also influenced by its nutritional status such as phosphorus (P) deficiency, which alters plant physiological functions and limits yields (Bista et al., 2018; Farooq et al., 2021). Drought stress and P deficiency frequently co-occur since any restriction in transpiration limits the uptake of water and nutrients, and may cause agronomic effects that

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Morphological, physiological and biochemical aspects of zinc seed priming-induced drought tolerance in faba bean

Cited by 23 publications

References 35 publications

Improvement of Growth, Yield, Seed Production and Phytochemical Properties of Satureja khuzistanica Jamzad by Foliar Application of Boron and Zinc

Improvement of Growth, Yield, Seed Production and Phytochemical Properties of Satureja khuzistanica Jamzad by Foliar Application of Boron and Zinc

Seed Priming with Chitosan Improves Germination Characteristics Associated with Alterations in Antioxidant Defense and Dehydration-Responsive Pathway in White Clover under Water Stress

Rhizosheath: An adaptive root trait to improve plant tolerance to phosphorus and water deficits?

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