Genotype‐ and tissue‐specific physiological and biochemical changes of two chickpea (<scp><i>Cicer arietinum</i></scp>) varieties following a rapid dehydration

Salahvarzi, Mandana; Esfahani, Mohammad Reza; Shirzadi, Nasrin; Burritt, David J.; Tran, Lam‐Son Phan

doi:10.1111/ppl.13452

Cited by 3 publications

(2 citation statements)

References 81 publications

(85 reference statements)

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“…However, plants own an antioxidant system which can keep ROS at non-harmful levels. Some studies have identified a greater action of this system in plants with drought tolerance capacity (Hasanuzzaman et al 2020, Sachdev et al 2021, Salahvarzi et al 2021. The SOD enzyme is the first line of defense of the antioxidant system and has the function of catalyzing the superoxide radical into H 2 O 2 and O 2 (Hassan et al 2021).…”

Section: Resultsmentioning

confidence: 99%

Adaptations to the drought season and impacts on the yield of ‘Híbrido de Timor’ coffee tree in the Minas Gerais State Cerrado (Brazilian Savanna)

Santos

Freitas

Silva

et al. 2022

Pesqui. Agropecu. Trop.

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Climate change threatens the survival of commercial crops due to their narrow genetic base. One of the alternatives is the identification of plants with potential for abiotic stress tolerance. This study aimed to verify the physiological and anatomical adaptations to the drought period and the impacts on the yield of ‘Híbrido de Timor’ coffee tree accessions. The experimental design was randomized blocks, in a 7 x 2 factorial arrangement, being seven genotypes (UFV 377-21, UFV 377-21, UFV 442-42, BE 5 Wush-Wush x UFV 366-08, UFV 428-02, UFV 376-31 and UFV 427-55) and two seasonal periods (dry and rainy), with two replications. The stomatal conductance; predawn water potential; levels of hydrogen peroxide and malondialdehyde; activity of the enzymes catalase, superoxide dismutase and ascorbate oxidase; ascorbate content; cuticle thickness of the adaxial surface and leaf lamina; stomatal density; ratio between polar and equatorial diameter; phloem area; area, diameter and frequency of xylem vessels; relative hydraulic conductivity; vulnerability index; and yield were evaluated. The results showed acclimatization of the accessions to the dry period, with some of them maintaining higher water potential values in the predawn; induction of the antioxidant system with the increase in the activity of the superoxide dismutase enzyme and ascorbate levels; increase in the cuticle and leaf lamina thickness; and a higher ratio between polar and equatorial diameters. Most of the evaluated accessions showed a good productive performance, especially the ‘UFV 377-21’, ‘UFV 442-42’ and ‘UFV 376-31’, with adaptations to the dry period and yield potential.

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Section: Resultsmentioning

confidence: 99%

Adaptations to the drought season and impacts on the yield of ‘Híbrido de Timor’ coffee tree in the Minas Gerais State Cerrado (Brazilian Savanna)

Santos

Freitas

Silva

et al. 2022

Pesqui. Agropecu. Trop.

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“…Global climate change will undoubtedly affect the frequency and duration of droughts that may destroy forest ecosystems in the future (Salahvarzi et al, 2021). That is why an understanding of the underlying drought tolerance mechanisms of plants is of essential importance, especially in forest tree species.…”

Section: Discussionmentioning

confidence: 99%

In vitro selection of drought-tolerant white poplar clones based on antioxidant activities and osmoprotectant content

Vuksanović,

Kovačević,

Kebert

et al. 2023

Front. Plant Sci.

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IntroductionIn light of upcoming climate change, there is an urgent requirement for tree improvement regarding adaptability to drought-caused stress and the development of quick and reliable screening methodologies for genotypes’ drought tolerance. White poplar is, despite its high adaptability, considered to be an endangered tree species in Serbia, which gives it special importance in the preservation and improvement of biodiversity of riparian ecosystems. The main goal of this research was to evaluate the tolerance of five white poplar clones to the presence of polyethylene glycol (PEG 6000 molecular weight 6000) (different concentrations (e.g. 0 g/L, 1 g/L, 10 g/L, 20 g/L, and 50 g/L) in Aspen Culture Medium (ACM).MethodsThe tolerance of the clones was evaluated by using morphological parameters (shoot fresh and dry weight, root fresh and dry weight), photosynthetic pigments (contents of chlorophyll a, chlorophyll b, carotenoids, and chlorophyll a+b), and biochemical parameters (total phenolic content, total flavonoid content, ferric reducing antioxidant power, antioxidant activities (DPPH activity and ABTS assay), free proline content and glycine betaine content.Results and DiscussionThe values of morphological and photosynthetic pigments declined with an increase in the concentration of PEG 6000. At a concentration of 50 g/L, the content of shoot fresh mass decreased by 41%, the content of Chl a by 68%, Chl b by 65%, and Car by 76% compared to the control. Also, at the same medium, there was an increase in the content of total phenols, accumulation of proline, the content of glycine betaine as well as in antioxidant activity. Based on the obtained results, it can be assumed that more drought-tolerant clones are characterized by high values for biomass, high content of photosynthetic pigments, and high content of proline and glycine betaine in conditions similar to drought in vitro. Clone L-80 showed better results in most of the tested parameters, especially compared to the reference clone Villafranca.

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Molecular Breeding and Drought Tolerance in Chickpea

Asati

Tripathi

Tiwari

et al. 2022

Life

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Cicer arietinum L. is the third greatest widely planted imperative pulse crop worldwide, and it belongs to the Leguminosae family. Drought is the utmost common abiotic factor on plants, distressing their water status and limiting their growth and development. Chickpea genotypes have the natural ability to fight drought stress using certain strategies viz., escape, avoidance and tolerance. Assorted breeding methods, including hybridization, mutation, and marker-aided breeding, genome sequencing along with omics approaches, could be used to improve the chickpea germplasm lines(s) against drought stress. Root features, for instance depth and root biomass, have been recognized as the greatest beneficial morphological factors for managing terminal drought tolerance in the chickpea. Marker-aided selection, for example, is a genomics-assisted breeding (GAB) strategy that can considerably increase crop breeding accuracy and competence. These breeding technologies, notably marker-assisted breeding, omics, and plant physiology knowledge, underlined the importance of chickpea breeding and can be used in future crop improvement programmes to generate drought-tolerant cultivars(s).

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Genotype‐ and tissue‐specific physiological and biochemical changes of two chickpea (Cicer arietinum) varieties following a rapid dehydration

Cited by 3 publications

References 81 publications

Adaptations to the drought season and impacts on the yield of ‘Híbrido de Timor’ coffee tree in the Minas Gerais State Cerrado (Brazilian Savanna)

Adaptations to the drought season and impacts on the yield of ‘Híbrido de Timor’ coffee tree in the Minas Gerais State Cerrado (Brazilian Savanna)

In vitro selection of drought-tolerant white poplar clones based on antioxidant activities and osmoprotectant content

Molecular Breeding and Drought Tolerance in Chickpea

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