Pretreatment of seeds with hydrogen peroxide improves deep-sowing tolerance of wheat seedlings

Cetinel, Askim Hediye Sekmen; Yalçinkaya, Tolga; Akyol, Turgut Yiğit; Gokce, Azime; Türkan, İsmail

doi:10.1016/j.plaphy.2021.08.016

Cited by 9 publications

(7 citation statements)

References 68 publications

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“…Greater H2O2 accumulation could be consequently induced in seedlings characterized by significantly lower POx but higher SOD activities. Cetinel et al observed similar consequences in an H2O2-treated group of wheat plants compared to controls under the same conditions [55].…”

Section: Non-enzymatic Antioxidant-related Response In Wheat Plants E...mentioning

confidence: 76%

“…Drought is a prevalent natural factor limiting crop production in arid regions across the world. To overcome this limitation, seeds are sown much deeper to boost germination via soil moisture produced by underground water [55]. Wheat coleoptiles protect the plumule and the first leaf so they can move from the embryo to the soil surface.…”

Section: Morphology-related Response In Wheat Plants Exposed To Funga...mentioning

confidence: 99%

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Basidiomycetes Polysaccharides Regulate Growth and Antioxidant Defense System in Wheat

Tsivileva,

Shaternikov,

Evseeva

2024

IJMS

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Higher-fungi xylotrophic basidiomycetes are known to be the reservoirs of bioactive metabolites. Currently, a great deal of attention has been paid to the exploitation of mycelial fungi products as an innovative alternative in crop protection. No data exist on the mechanisms behind the interaction between xylotrophic mushrooms’ glycopolymeric substances and plants. In this study, the effects of basidiomycete metabolites on the morphophysiological and biochemical variables of wheat plants have been explored. Wheat (Triticum aestivum L. cv. Saratovskaya 29) seedlings were treated with extracellular polysaccharides (EPSs) isolated from the submerged cultures of twenty basidiomycete strains assigned to 13 species and 8 genera. The EPS solutions at final concentrations of 15, 40, and 80 mg/L were applied to wheat seedlings followed by their growth for 10 days. In the plant samples, the biomass, length of coleoptile, shoot and root, root number, rate of lipid peroxidation by malondialdehyde concentration, content of hydrogen peroxide, and total phenols were measured. The peroxidase and superoxide dismutase activity were defined. Most of the EPS preparations improved biomass yields, as well as the morphological parameters examined. EPS application enhanced the activities of antioxidant enzymes and decreased oxidative damage to lipids. Judging by its overall effect on the growth indices and redox system of wheat plants, an EPS concentration of 40 mg/L has been shown to be the most beneficial compared to other concentrations. This study proves that novel bioformulations based on mushroom EPSs can be developed and are effective for wheat growth and antioxidative response. Phytostimulating properties found for EPSs give grounds to consider extracellular metabolites produced in the xylotrophic basidiomycete cultures as an active component capable of inducing plant responses to stress.

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Section: Non-enzymatic Antioxidant-related Response In Wheat Plants E...mentioning

confidence: 76%

Section: Morphology-related Response In Wheat Plants Exposed To Funga...mentioning

confidence: 99%

Basidiomycetes Polysaccharides Regulate Growth and Antioxidant Defense System in Wheat

Tsivileva,

Shaternikov,

Evseeva

2024

IJMS

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“…In long-term agricultural practice, deep-sowing is a highly effective strategy for improving the resistance of various crops to drought stress, cold damage, and lodging [ 6 , 21 , 27 , 28 , 29 , 30 ], and the emergence of seedlings is directly related to cooperative elongation of mesocotyl and coleoptile [ 3 , 7 , 14 , 31 ]. In this study, we found that with an increase in sowing depth from 3 cm to 20 cm, the RAT of two parents, F 1 hybrid, and F 2:3 population all decreased, their mesocotyls and coleoptiles significantly elongated, and seedlings were slender and weaker ( Table 1 ), which supported previous observations [ 8 , 19 , 21 ].…”

Section: Discussionmentioning

confidence: 99%

Integrated QTL Mapping, Meta-Analysis, and RNA-Sequencing Reveal Candidate Genes for Maize Deep-Sowing Tolerance

Zhao

Niu

Hossain

et al. 2023

IJMS

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Synergetic elongation of mesocotyl and coleoptile are crucial in governing maize seedlings emergence, especially for the maize sown in deep soil. Studying the genomic regions controlling maize deep-sowing tolerance would aid the development of new varieties that are resistant to harsh conditions, such as drought and low temperature during seed germination. Using 346 F2:3 maize population families from W64A × K12 cross at three sowing depths, we identified 33 quantitative trait loci (QTLs) for the emergence rate, mesocotyl, coleoptile, and seedling lengths via composite interval mapping (CIM). These loci explained 2.89% to 14.17% of phenotypic variation in a single environment, while 12 of 13 major QTLs were identified at two or more sowing environments. Among those, four major QTLs in Bin 1.09, Bin 4.08, Bin 6.01, and Bin 7.02 supported pleiotropy for multiple deep-sowing tolerant traits. Meta-analysis identified 17 meta-QTLs (MQTLs) based on 130 original QTLs from present and previous studies. RNA-Sequencing of mesocotyl and coleoptile in both parents (W64A and K12) at 3 cm and 20 cm sowing environments identified 50 candidate genes expressed differentially in all major QTLs and MQTLs regions: six involved in the circadian clock, 27 associated with phytohormones biosynthesis and signal transduction, seven controlled lignin biosynthesis, five regulated cell wall organization formation and stabilization, three were responsible for sucrose and starch metabolism, and two in the antioxidant enzyme system. These genes with highly interconnected networks may form a complex molecular mechanism of maize deep-sowing tolerance. Findings of this study will facilitate the construction of molecular modules for deep-sowing tolerance in maize. The major QTLs and MQTLs identified could be used in marker-assisted breeding to develop elite maize varieties.

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“…Overall, the percentage of germination was above 60 % in both places, indicating favorable germination conditions. Several authors have reported the significant impact of water pre-treatment of seeds on the rate and consistency of seedling germination, possibly due to the triggering of pre-germination metabolic changes 15,16 . The rainfall rate was higher in Calabar (2,448.3 mm) than in Obudu (1,772.1 mm) and germination rates were above 60% in both locations.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Growth Parameters of Pigeon Pea (Cajanus cajan (L.) Millsp.) Cultivated in Two Different Ecological Zones in Cross River State

Aboh¹,

Ononyume²

2023

Asian J. of Agricultural Research

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Background and Objective: Sustainable food security in Nigeria has become very important to curb malnutrition and protein deficiency. Changes in the observed climate are affecting the growth of food crops through phenological alterations among other stress factors. Pigeon pea (Cajanus cajan (L.) Millsp.) has been reported as one of those crops with significant potential to withstand these stressors as well as meet the demands for a source of protein and medicine for humans and livestock. This study assessed the growth parameters of fifty accessions of pigeon pea (Cajanus cajan (L.) Millsp.) cultivated in two ecological zones in Cross River State.Materials and Methods: A 50×2 factorial in a completely randomized block design with three replications was used. Three seeds per accession were sown per hole at a depth of 2 cm and thinned to two after emergence, on beds measuring 1×1 m. Each bed had six plants and growth parameters were measured on plant height, number of leaves, number of branches and leaf area. Results: It showed significant differences in growth parameters, including plant height, number of leaves, number of branches, leaf area, leaf area index and relative growth rate between the two locations, with the accessions planted in Calabar displaying higher mean values for all parameters except plant height and leaf area indices, 50.98 and 5.38 cm, respectively, which were higher in Obudu. Conclusion: The findings of this study showed that these fifty accessions of pigeon peas can be cultivated successfully in Calabar and Obudu. This information is crucial for farmers to optimize pigeon pea production to diversify the food base, ameliorate protein deficiency and enhance soil nutrition in Cross River State and Nigeria.

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Pretreatment of seeds with hydrogen peroxide improves deep-sowing tolerance of wheat seedlings

Cited by 9 publications

References 68 publications

Basidiomycetes Polysaccharides Regulate Growth and Antioxidant Defense System in Wheat

Basidiomycetes Polysaccharides Regulate Growth and Antioxidant Defense System in Wheat

Integrated QTL Mapping, Meta-Analysis, and RNA-Sequencing Reveal Candidate Genes for Maize Deep-Sowing Tolerance

Assessment of Growth Parameters of Pigeon Pea (Cajanus cajan (L.) Millsp.) Cultivated in Two Different Ecological Zones in Cross River State

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