The relative contributions of pH, organic anions, and phosphatase to rhizosphere soil phosphorus mobilization and crop phosphorus uptake in maize/alfalfa polyculture

Plant and Soil, Год журнала: 2019, Номер 447(1-2), С. 117 - 133

Опубликована: Май 8, 2019

Язык: Английский

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Mechanisms for improving phosphorus utilization efficiency in plants

Annals of Botany, Год журнала: 2021, Номер 129(3), С. 247 - 258

Опубликована: Дек. 2, 2021

Limitation of plant productivity by phosphorus (P) supply is widespread and will probably increase in the future. Relatively large amounts P fertilizer are applied to sustain crop growth development achieve high yields. However, with increasing application, efficiency generally declines, which results greater losses environment detrimental consequences for ecosystems.A strategy reducing input environmental while maintaining or performance crops that take up effectively from soil (P acquisition efficiency) promote per unit taken utilization efficiency). In this review, we describe current research on metabolism transport its relevance improving efficiency.Enhanced can be achieved optimal partitioning cellular distributing between tissues, allowing maximum biomass harvestable parts. Knowledge mechanisms involved could help design breed efficiency.

Язык: Английский

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Phosphorus facilitation and covariation of root traits in steppe species

New Phytologist, Год журнала: 2020, Номер 226(5), С. 1285 - 1298

Опубликована: Фев. 21, 2020

Summary Different phosphorus (P)‐acquisition strategies may be relevant for species coexistence and plant performance in terrestrial communities on P‐deficient soils. However, how interspecific P facilitation functions natural systems is largely unknown. We investigated the root physiological activities mobilization across 19 coexisting steppe vegetation, then grew plants with various abilities to mobilize sorbed a microcosm glasshouse. show that mediated by rhizosphere processes of P‐mobilizing promoted growth increased content neighbors species‐specific manner. When roots interacted facilitating neighbor, Cleistogenes squarrosa Bromus inermis tended greater plasticity proliferation or rhizosheath acid phosphatase activity compared other non‐P‐mobilizing species. Greater variation these traits was strongly correlated presence facilitator. The results also show, first time, an important mechanism underlying positive complementarity effect. Our study highlights P‐acquisition requires facilitated exhibit better match It provides understanding P‐limited communities.

Язык: Английский

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Long-term cover crops improved soil phosphorus availability in a rain-fed apple orchard

Chemosphere, Год журнала: 2021, Номер 275, С. 130093 - 130093

Опубликована: Фев. 24, 2021

Язык: Английский

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Leaf manganese concentrations as a tool to assess belowground plant functioning in phosphorus-impoverished environments

Plant and Soil, Год журнала: 2020, Номер 461(1-2), С. 43 - 61

Опубликована: Сен. 9, 2020

Язык: Английский

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Mobilization of soil phosphate after 8 years of warming is linked to plant phosphorus‐acquisition strategies in an alpine meadow on the Qinghai‐Tibetan Plateau

Global Change Biology, Год журнала: 2021, Номер 27(24), С. 6578 - 6591

Опубликована: Окт. 5, 2021

Abstract Phosphorus (P) is essential for productivity of alpine grassland ecosystems, which are sensitive to global warming. We tested the hypotheses that (1) mobilized ‘calcium‐bound inorganic P’ (Ca‐P i ) a major source plant‐available P in meadows with alkaline soils after long‐term warming, (2) mobilization Ca‐P linked effective plant carboxylate‐releasing P‐acquisition strategies under and (3) also related nitrogen (N)‐acquisition. conducted an 8‐year warming experiment meadow (4635 m above sea level) on Qinghai‐Tibetan Plateau. A significant increase concentration both aboveground belowground biomass indicates increased assimilation by plants observed decrease , no change moderately‐labile organic P, highly resistant There was phosphatase activities. Our results indicate rather than Higher leaf manganese concentrations sedges forbs carboxylates released these key mechanism mobilization. The insignificant Rhizobiales very small cover legumes show minor role N‐acquisition solubilizing phosphate. relative abundance mycorrhizal fungi bacteria cycling shows contribution microorganisms N N:P ratio grasses sedge reflect distinct responses nutrient status due differences strategies. highlight important effects strategies, especially changes meadows.

Язык: Английский

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Strategies to acquire and use phosphorus in phosphorus-impoverished and fire-prone environments

Plant and Soil, Год журнала: 2022, Номер 476(1-2), С. 133 - 160

Опубликована: Май 19, 2022

Abstract Background Unveiling the diversity of plant strategies to acquire and use phosphorus (P) is crucial understand factors promoting their coexistence in hyperdiverse P-impoverished communities within fire-prone landscapes such as cerrado (South America), fynbos Africa) kwongan (Australia). Scope We explore P-acquisition strategies, highlighting one that has received little attention: acquisition P following fires temporarily enrich soil with P. This strategy expressed by fire ephemerals well fast-resprouting perennial shrubs. A plant’s leaf manganese concentration ([Mn]) provides significant clues on strategies. High [Mn] indicates carboxylate-releasing but other exudates may play same role carboxylates acquisition. Intermediate suggests facilitation P-mobilising neighbours, through release or functionally similar compounds. Very low no immediate Release phosphatases also represents a P-mining strategy, mobilising organic Some species express multiple depending time since germination fire, position landscape. In severely landscapes, photosynthetic P-use efficiency converges among species. Efficient exhibit rapid rates photosynthesis at concentrations. high P-remobilisation from senescing organs another way efficiently, extended longevity organs. Conclusions Many coexist tend converge. Common which we know are those ephemeral first respond after fire. surmise far more widespread than envisaged so far, likely accumulate metals, exemplified Mn, metalloids, selenium, fluorine, form fluoroacetate, silicon. important consider when restoring sites biodiverse regions cropping systems strongly P-sorbing soils, because some only be able establish themselves next neighbours mobilise

Язык: Английский

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Arbuscular mycorrhizal fungi have a greater role than root hairs of maize for priming the rhizosphere microbial community and enhancing rhizosphere organic P mineralization

Soil Biology and Biochemistry, Год журнала: 2022, Номер 171, С. 108713 - 108713

Опубликована: Май 16, 2022

Язык: Английский

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Improving phosphorus acquisition efficiency through modification of root growth responses to phosphate starvation in legumes

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Фев. 10, 2023

Phosphorus (P) is one of the essential macronutrients for plant growth and development, it an integral part major organic components, including nucleic acids, proteins phospholipids. Although total P abundant in most soils, a large amount not easily absorbed by plants. Inorganic phosphate (Pi) plant-available P, which generally immobile low availability soils. Hence, Pi starvation constraint limiting productivity. Enhancing efficiency can be achieved improving acquisition (PAE) through modification morpho-physiological biochemical alteration root traits that enable greater external from Major advances have been made to dissect mechanisms underlying adaptation deficiency, especially legumes, are considered important dietary sources humans livestock. This review aims describe how legume responds starvation, such as changes primary root, lateral roots, hairs cluster roots. In particular, summarizes various strategies legumes confront deficiency regulating contribute towards PAE. Within these complex responses, number starvation-induced (PSI) genes regulators involved developmental highlighted. The involvement key functional remodeling provides new opportunities developing varieties with maximum PAE needed regenerative agriculture.

Язык: Английский

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Root exudation of organic acid anions and recruitment of beneficial actinobacteria facilitate phosphorus uptake by maize in compacted silt loam soil

Soil Biology and Biochemistry, Год журнала: 2023, Номер 184, С. 109074 - 109074

Опубликована: Июнь 11, 2023

Язык: Английский

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