Seed priming and abiotic stress tolerance in carrot: Unraveling the mechanisms of improved germination

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(2), P. e0318753 - e0318753

Published: Feb. 7, 2025

Climate change necessitates the development of improved crops capable withstanding future weather patterns. Carrots (Daucus carota L.), a crucial vegetable crop global importance, face unique challenges in seed germination and seedling due to their complex pollination biology outcrossing reproduction mode with severe inbreeding depression if selfed. This study investigated effects salinity drought stress on carrot development, focus roles priming, cellular processes inhibitors, biochemical responses. Seed priming agents were hypothesized enhance tolerance by modulating specific pathways, such as improving osmotic balance, enhancing antioxidant defense mechanisms, activating stress-responsive genes. We also that pathways influence early growth seeds under or stress. To test hypothesis, we evaluated various (e.g., water, NaCl, PEG, GA3) rates vigor. Additionally, impact inhibitors (actinomycin D-inhibitor transcription, cycloheximide-inhibitor translation, hydroxyurea-inhibitor DNA synthesis, cytochalasin-inhibitor actin polymerization) conditions. Biochemical responses, including reactive oxygen species (ROS) levels enzyme activities, analyzed identify genotype-specific adaptations indicative tolerance. Our results revealed significant variability among studied experimental lines commercial cultivars enhanced vigor up 35% 28% stress, notable differences observed across agents. The application highlighted involvement regulation For instance, actinomycin D reduced 40% analyses indicated variations ROS activities superoxide dismutase peroxidase. increased 50% whereas varied substantially genotypes. These findings underscored importance conferring seedlings. Future research integrating omics approaches transcriptomics, proteomics, metabolomics) will provide deeper insights into molecular mechanisms regulate tolerance, aid more resilient varieties suitable for cultivation adverse environmental

Language: Английский

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Identification of salt-resilient cotton genotypes using integrated morpho-physiological and biochemical markers at the seedling stage

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 12, 2025

Soil salinity drastically hinders cotton productivity (Gossypium hirsutum), and fiber quality. The current study evaluated morpho-physiological biochemical responses of fifty genotypes under different levels (control, 12 dS/m, 17 dS/m) at the seedling stage. experiment was performed in a factorial complete randomized design with three replications. Significant genotype × treatment interactions were observed for most traits, including shoot length (SL), root (RL), fresh dry weight (FSW, DSW), (FRW, DRW), total soluble protein (TSP), proline content, antioxidant enzymes. Severe stress reduces (SL) (RL) along notable decreases biomass altered responses, increased activities indicating adaptation. Moreover, PCA Pearson's correlation analyses unveiled strong positive negative correlations among studied attributes while MGIDI assist determining salt-resilient applied treatments. best-performing control conditions G2, G8, G12, G7, G43, G30 showed resilience severe stress. effectively identified outstanding tolerance, such as G40, G26, across all levels. This research assists stress-tolerant using parameters is used precise method identifying accessions.

Language: Английский

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A Novel Multi Trait Genotype Ideotype Distance Index (MGIDI) for Genotype Selection in Plant Breeding: Application, Prospects, and Limitations

Crop Design, Journal Year: 2024, Volume and Issue: 3(4), P. 100074 - 100074

Published: Sept. 2, 2024

The Multitrait Genotype Ideotype Distance Index (MGIDI) is a strong and adaptable technique for choosing superior genotypes of diverse crops based on numerous attributes. It multivariate selection indicator that incorporates different characteristic information into single value ranks their distance from an ideal genotype. Breeders can use variable criteria including weighting traits assessing genetic strengths weaknesses. organizes attributes components chooses optimal many using principal component analysis. This review covered the available regarding background, applications, prospects, limitations MGIDI crop improvement breeding in this research. We discussed significant discoveries consequences several studies used to enhance productivity, excellence, flexibility crops, such as bush yam, barley, cassava, cucumber, guar, lentil, maize, rice, bean, soybean, wheat, etc. Additionally, we talked about some potential applications improvement, tolerance salinity, stability analysis, waterlogging, mechanism drought response, performance agronomy tuber quality, nutritional adaptability, increased yield, early maturity, stress resistance. Following upward trend, be considered valuable index address food security, climate change, quality problems worldwide. expect study will spark more research characteristics, contributing plant science.

Language: Английский

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Estimation of genetic parameters and use of selection indices in the identification of superior sweet potato genotypes

Euphytica, Journal Year: 2025, Volume and Issue: 221(5)

Published: April 15, 2025

Language: Английский

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