Foliar Application of Ascorbic Acid and Gamma Aminobutyric Acid Can Improve Important Properties of Deficit Irrigated Cucumber Plants (Cucumis sativus cv. Us)

Ghahremani, Zahra; Mikaealzadeh, Marjan; Barzegar, Taher; Ranjbar, Mohammad Ebrahim

doi:10.1007/s10343-020-00530-6

Cited by 21 publications

(9 citation statements)

References 29 publications

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“…Water deficiency stress is the main serious abiotic stress affecting plant growth and has become the preliminary cause of crop productivity and quality declines [ 2 , 4 , 5 ]. Most plants experienced growth rate, leaf water content (LWC), relative water content, chlorophyll content, photosynthetic frequency, stomatal conductance, and transpiration frequency changes due to water-deficit conditions, which controlled inadequate plant growth and yield production [ 1 , 6 , 7 ]. Antioxidant enzymes, i.e., catalase (CAT), peroxidase (POD), and glutathione reductase (GSR), showed lower activity under water-deficit stress, which causes oxidative tension in plant cells, but increases malondialdehyde concentration, i.e., hydrogen peroxide [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Grafting enhances drought tolerance by regulating stress-responsive gene expression and antioxidant enzyme activities in cucumbers

et al. 2022

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Water scarcity is a major limiting factor for crop yield production in arid and water-stressed areas worldwide. Cucumber plants have a high transpiration ratio and are vulnerable to drought. Grafting commercial genotypes onto selected strong rootstocks has been useful in mitigating the effects of drought. Therefore, this study aimed to evaluate the possibility of using a novel rootstock plant’s tolerance to water-deficit stress in inducing drought tolerance in cucumbers by activating the stress-response gene expression and the antioxidant system, which improved the cucumber quality and yield under water-deficit conditions. This field experiment was conducted for > 2 years, 2020 and 2021, with five drought stress tolerant genotypes (i.e., rootstock) and drought-sensitive genotype Luerans (i.e., a scion). They were subjected to various deficit irrigation levels for 12 days, and their agro-physiological and molecular responses to water-deficit stress were assessed. The results of the study showed that the agronomical parameters, including the leaf area (LA), leaf water content (LWC), number of leaves, plant height, root dry matter shoot dry matter, rates of leaf appearance and stem elongation, and total yield significantly increased with grafted cucumber plants than with non-grafted cucumber plants (control) under normal and stressful conditions.Similar results were observed in the physiological measurements in terms of antioxidant enzymes, abscisic acid levels, gibberellic acid content, and lower lipid peroxidation (malondialdehyde, MDA). Grafting of Luerans (section) on five rootstocks significantly raised the activity of antioxidant enzymes (catalase and peroxidase), improved the gibberellic acid and proline accumulation, and reduced the content of lipid peroxidation and abscisic acid. Furthermore, the real-time polymerase chain reaction expression results revealed that transcript levels of the stress-response genes CsAGO1 and CsDCLs increased rapidly and continuously in five rootstock grafting. Concurrently, these findings suggest that grafting with local varieties of novel drought-tolerant rootstock genotypes could improve drought tolerance in drought-sensitive cucumber genotypes.

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Section: Introductionmentioning

confidence: 99%

Grafting enhances drought tolerance by regulating stress-responsive gene expression and antioxidant enzyme activities in cucumbers

et al. 2022

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“…Drought stress is the most damaging environmental stresses in agriculture crops production worldwide (Ghahremani et al, 2020). Most regions of Iran have dry and warm climate and water de cit is most important limiting factor for agriculture and crop production in this country.…”

Section: Discussionmentioning

confidence: 99%

“…Asparagus o cinalis is the most economically important species and Mary Washington is the most cultivated commercial cultivar of asparagus worldwide (Amian et al 2018). Drought stress is one of the most important environmental stresses which can seriously affect quality and productivity rate of agriculture crops (Ghahremani et al 2020). Iran is the second largest country in the Middle East which is climatically part of the Afro-Asian belt of deserts and has a unique plant and animal diversity (Ebrahimi et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Morphological Evaluation of Asparagus Azerbaijanensis Wild Accessions and Drought Tolerance Assessment of Iranian Asparagus Under Greenhouse Condition

Namaki

Ghahremani

Ranjbar

2021

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Some of the most cultivated commercial cultivars of asparagus are susceptible to abiotic stresses. Different species of asparagus plant are distributed in different regions of Iran which could be useful genetic resources for applying in asparagus breeding programs. The purposes of the current study were to evaluate morphological variation of A. azerbaijanensis accessions and drought tolerance assessment of Iranian asparagus in order to introduce superior accessions. Two different accessions of A. azerbaijanensis species were collected. A number of 30 plants were selected and 22 morphological traits were then evaluated. A factorial experiment based on completely randomized design was performed in order to drought tolerance assessment of 9 Iranian asparagus accessions. The average of spear length and diameter in Ahar and Makou plants were 48.94 cm and 4.70 mm, respectively. Based on results, plants of Ahar accession produced short and thick spears but on the other hand, Makou accession plants produced longer and thinner spears. Score 8 (80% similarity rate) was averagely chosen by panel members in terms of similarity rate of A. azerbaijanensis accessions spears taste to that of Mary Washington commercial cultivar. The highest percentage of seed germination was recorded in Baladeh and Gazanak accessions (71.66 and 70.83%, respectively). Baladeh accession showed the highest carotenoid content under drought stress conditions (0.43 mg g Fw− 1). Suitable size and delicious taste of spear in A. azerbaijanensis species has made it a suitable candidate for commercial cultivation and also improving spear characteristics by using selection method. Baladeh and Gazanak accessions could be introduced as superior accessions with high drought tolerance rate. High resistance rate of these accessions can be related to their ploidy level and distribution areas characteristics.

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“…The application of vitamin C (ascorbic acid) has demonstrated beneficial effects in agriculture, such as reducing the effect of nickel and cadmium in barley [ 171 , 172 ], alleviating drought stress in sweet pepper [ 173 ] and Cucumber [ 174 ], and improving the qualities of apples [ 175 ]. It allows for mitigating the salinity stress and providing better growth performance in barley [ 176 ].…”

Section: Novel Technologies For Encapsulation Of Bioactive Compoundsmentioning

confidence: 99%

Encapsulation of Bioactive Compounds for Food and Agricultural Applications

et al. 2022

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This review presents an updated scenario of findings and evolutions of encapsulation of bioactive compounds for food and agricultural applications. Many polymers have been reported as encapsulated agents, such as sodium alginate, gum Arabic, chitosan, cellulose and carboxymethylcellulose, pectin, Shellac, xanthan gum, zein, pullulan, maltodextrin, whey protein, galactomannan, modified starch, polycaprolactone, and sodium caseinate. The main encapsulation methods investigated in the study include both physical and chemical ones, such as freeze-drying, spray-drying, extrusion, coacervation, complexation, and supercritical anti-solvent drying. Consequently, in the food area, bioactive peptides, vitamins, essential oils, caffeine, plant extracts, fatty acids, flavonoids, carotenoids, and terpenes are the main compounds encapsulated. In the agricultural area, essential oils, lipids, phytotoxins, medicines, vaccines, hemoglobin, and microbial metabolites are the main compounds encapsulated. Most scientific investigations have one or more objectives, such as to improve the stability of formulated systems, increase the release time, retain and protect active properties, reduce lipid oxidation, maintain organoleptic properties, and present bioactivities even in extreme thermal, radiation, and pH conditions. Considering the increasing worldwide interest for biomolecules in modern and sustainable agriculture, encapsulation can be efficient for the formulation of biofungicides, biopesticides, bioherbicides, and biofertilizers. With this review, it is inferred that the current scenario indicates evolutions in the production methods by increasing the scales and the techno-economic feasibilities. The Technology Readiness Level (TRL) for most of the encapsulation methods is going beyond TRL 6, in which the knowledge gathered allows for having a functional prototype or a representative model of the encapsulation technologies presented in this review.

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Foliar Application of Ascorbic Acid and Gamma Aminobutyric Acid Can Improve Important Properties of Deficit Irrigated Cucumber Plants (Cucumis sativus cv. Us)

Cited by 21 publications

References 29 publications

Grafting enhances drought tolerance by regulating stress-responsive gene expression and antioxidant enzyme activities in cucumbers

Grafting enhances drought tolerance by regulating stress-responsive gene expression and antioxidant enzyme activities in cucumbers

Morphological Evaluation of Asparagus Azerbaijanensis Wild Accessions and Drought Tolerance Assessment of Iranian Asparagus Under Greenhouse Condition

Encapsulation of Bioactive Compounds for Food and Agricultural Applications

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