Effects of precipitation intermittency on vegetation patterns in semi-arid landscapes

Physica D Nonlinear Phenomena, Journal Year: 2020, Volume and Issue: 405, P. 132396 - 132396

Published: Feb. 13, 2020

Language: Английский

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Restoration ecophysiology: an ecophysiological approach to improve restoration strategies and outcomes in severely disturbed landscapes

Restoration Ecology, Journal Year: 2021, Volume and Issue: 30(S1)

Published: Sept. 30, 2021

As human activities destroy and degrade the world's ecosystems at unprecedented scales, there is a growing need for evidence‐based methods ecological restoration if we are to preserve biodiversity ecosystem services. Mining represents one of most severe anthropogenic disturbances, often necessitating intensive intervention restore basic attributes native ecosystems. Despite examples successful mine‐site restoration, re‐establishing vegetation in these degraded landscapes remains significant challenge. Plant ecophysiology—the study interactions between plants environment—can provide useful framework evaluating guiding restoration. By understanding physiological mechanisms that allow establish persist highly disturbed environments, practitioners may be able improve outcomes. Specifically, plant ecophysiology can inform site preparation selection material projects, aid monitoring progress by providing additional insight into performance, ultimately our ability predict trajectories. Here, review challenges benefits integrating an ecophysiological perspective Western Australia, global hotspot mining operations. Using case studies from region's diverse ecosystems, illustrate how approach guide some severely landscapes. With careful species traits consideration specific environmental conditions stressors within site, outlined here has potential strategies across

Language: Английский

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Fungicide Seed Coating Increases Emergence of Bluebunch Wheatgrass (Pseudoroegneria spicata) Under High-Fungal-Biomass Conditions

Plants, Journal Year: 2025, Volume and Issue: 14(5), P. 679 - 679

Published: Feb. 22, 2025

Pathogenesis from soil- and seed-borne fungi can limit the survival growth of native seeds seedlings. Fungicides combat fungal pathogens, but in some studies, fungicide treatments were ineffective at improving seedling emergence over untreated seed. Such studies suggest that low presence due to dry conditions may be cause ineffectiveness years sites. This study tested whether a treatment’s effectiveness is indeed related amount soil. We compared biomass produced Pseudoroegneria spicata seed was uncoated, coated with no active ingredient, fungicide-coated, across five soil promoting different levels biomass. For uncoated seed, both percent total seedlings highest autoclaved declined when present, level fungus did not impact or for fungicide-coated When grown autoclaved, untreated, low-fungus soils, significantly seeds. However, medium- high-fungus more than two times greater (p < 0.05). These results indicate effective increasing restoration success P. spicata, treatment depends on microbial environment planting site.

Language: Английский

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Drought tolerance during germination depends on light and temperature of incubation in Salsola imbricata, a desert shrub of Arabian deserts

Flora, Journal Year: 2018, Volume and Issue: 249, P. 156 - 163

Published: Nov. 3, 2018

Language: Английский

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Physiological and metabolic adjustments in the xero‐halophyte Haloxylon salicornicum conferring drought tolerance

Physiologia Plantarum, Journal Year: 2021, Volume and Issue: 172(2), P. 1189 - 1211

Published: Jan. 29, 2021

Abstract Drought is one of the most catastrophic abiotic stresses that affects global food production severely. The present work investigates metabolic and physiological adaptation mechanisms in xero‐halophyte Haloxylon salicornicum to counter effects drought. This can withstand a prolonged drought period 14 days recovered within 7 irrigation with minimal on growth parameters. Photosynthetic parameters such as P N , g s E decreased significantly, whereas WUE increased under condition. induces significant decline Fv/Fm ratio. However, value ratio successfully recovery period. Differential regulations various antioxidative enzymes increase tolerance potential H. . metabolomic analysis shoot identified 63 metabolites: 43 significantly 20 conditions. These metabolites mainly include amino acids, organic amines, sugar alcohols, sugars, fatty alkaloids, phytohormones. have contribution towards citric acid, malic tartaric d ‐erythrose, glyceric sucrose, pentanoic ‐mannitol, ABA, palmitic acid. KEGG pathway enrichment showed vital drought‐responsive pathways galactose metabolism, aminoacyl‐tRNA biosynthesis, glyoxylate dicarboxylate citrate cycle (TCA cycle), alanine, aspartate, glutamate metabolism. study offers comprehensive information physiological, adaptations overall gained from this will provide guidance plant breeders molecular biologists develop drought‐tolerant crop varieties.

Language: Английский

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