Plant nutrient stress adaptation: A prospect for fertilizer limited agriculture

Francis, Bejoy; Aravindakumar, Charuvila T.; Brewer, Philip B.; Simon, Sibu

doi:10.1016/j.envexpbot.2023.105431

Cited by 31 publications

(14 citation statements)

References 332 publications

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“…This is because P, Ca, and Fe are all essential nutrients for plant growth. 2,42 Overall, phytase-mediated hydrolysis of Ca/Fe-phytate maintains a continued but low soluble-P condition, which is accompanied by P/Ca/Fe release into the growth media, thereby promoting its uptake of As and nutrient P/Ca/Fe, which improves plant growth in P. vittata and enhances its efficiency in As accumulation. Nevertheless, this stoichiometric interplay between P and As is only a part of the story, as their effects on the expression of Pht1 transporters are equally important.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…vittata biomass and the P (Figure S3C,D), Ca (Figure S3E,F), and Fe (Figure S3G,H) contents in its fronds and roots. This is because P, Ca, and Fe are all essential nutrients for plant growth. , Overall, phytase-mediated hydrolysis of Ca/Fe-phytate maintains a continued but low soluble-P condition, which is accompanied by P/Ca/Fe release into the growth media, thereby promoting its uptake of As and nutrient P/Ca/Fe, which improves plant growth in P. vittata and enhances its efficiency in As accumulation.…”

Section: Resultsmentioning

confidence: 99%

“…Unlike As, P is an essential macronutrient for plant growth, but plants can only utilize soluble inorganic P (P i ) in soils. 2 However, P bioavailability in soils is often limited, with ∼40% of the world's farmland being deficient in plant available P, thereby adversely impacting crop yields. 3 Phytate, which contains six phosphate moieties, is an important organic P (P o ) in soils, which can account up to 25% of total soil P. 4 However, soil phytate is stable as it resists to biochemical degradation, rendering it relatively unavailable to most plants and resulting in its accumulation in soils.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In soils, As primarily exists as arsenate (AsV), which is a chemical analogue of phosphate (P). Unlike As, P is an essential macronutrient for plant growth, but plants can only utilize soluble inorganic P (P i ) in soils . However, P bioavailability in soils is often limited, with ∼40% of the world’s farmland being deficient in plant available P, thereby adversely impacting crop yields …”

Section: Introductionmentioning

confidence: 99%

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Insoluble-Phytate Improves Plant Growth and Arsenic Accumulation in As-Hyperaccumulator Pteris vittata: Phytase Activity, Nutrient Uptake, and As-Metabolism

Liu,

Hu,

Xiao

et al. 2024

Environ. Sci. Technol.

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Phytate, the principal P storage in plant seeds, is also an important organic P in soils, but it is unavailable for plant uptake. However, the As-hyperaccumulator Pteris vittata can effectively utilize soluble Na-phytate, while its ability to utilize insoluble Ca/Fe-phytate is unclear. Here, we investigated phytate uptake and the underlying mechanisms based on the phytase activity, nutrient uptake, and expression of genes involved in As metabolisms. P. vittata plants were cultivated hydroponically in 0.2strength Hoagland nutrient solution containing 50 μM As and 0.2 mM Na/Ca/Fe-phytate, with 0.2 mM soluble-P as the control. As the sole P source, all three phytates supported P. vittata growth, with its biomass being 3.2−4.1 g plant −1 and Ca/Fe-phytate being 19−29% more effective than Na-phytate. Phytate supplied soluble P to P. vittata probably via phytase hydrolysis, which was supported by 0.4−0.7 nmol P min −1 g −1 root fresh weight day −1 phytase activity in its root exudates, with 29−545 μM phytate-P being released into the growth media. Besides, compared to Na-phytate, Ca/ Fe-phytate enhanced the As contents by 102−140% to 657−781 mg kg −1 in P. vittata roots and by 43−86% to 1109−1447 mg kg −1 in the fronds, which was accompanied by 21−108% increase in Ca and Fe uptake. The increased plant As is probably attributed to 1.3−2.6 fold upregulation of P transporters PvPht1;3/4 for root As uptake, and 1.8−4.3 fold upregulation of arsenite antiporters PvACR3/3;1/3;3 for As translocation to and As sequestration into the fronds. This is the first report to show that, besides soluble Na-phytate, P. vittata can also effectively utilize insoluble Ca/Fe-phytate as the sole P source, which sheds light onto improving its application in phytoremediation of As-contaminated sites.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Insoluble-Phytate Improves Plant Growth and Arsenic Accumulation in As-Hyperaccumulator Pteris vittata: Phytase Activity, Nutrient Uptake, and As-Metabolism

Liu,

Hu,

Xiao

et al. 2024

Environ. Sci. Technol.

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“…Thus, improving crop nitrogen use efficiency and reducing nitrogen fertilizer application rates have become crucial strategies for agricultural sustainability (Silva et al, 2020;Rong et al, 2021). Studies have shown that root morphology and spatial distribution significantly impact the nitrogen uptake efficiency of plants (Francis et al, 2023). Under low nitrogen conditions, plants adapt their root morphology by increasing root length, volume, and surface area to enhance nitrogen uptake (Kiba & Krapp, 2016;Wendling et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Fulvic acid alleviates the stress of low nitrogen on maize by promoting root development and nitrogen metabolism

Liang,

Wang,

Wang

et al. 2024

Physiologia Plantarum

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The potential of fulvic acid (FA) to improve plant growth has been acknowledged, but its effect on plant growth and nutrient uptake under nutrient stress remains unclear. This study investigated the effects of different FA application rates on maize growth and nitrogen utilization under low nitrogen stress. The results showed that under low nitrogen stress, FA significantly stimulated maize growth, particularly root development, biomass, and nitrogen content. The enhanced activity levels of key enzymes in nitrogen metabolism were observed, along with differential gene expression in maize, which enriched nitrogen metabolism, amino acid metabolism and plant hormone metabolism. The application of FA regulated the hormones' level, reduced abscisic acid content in leaves and Me‐JA content in roots, and increased auxin and zeatin ribose content in leaves. This study concludes that, by promoting root development, nitrogen metabolism, and hormone metabolism, an appropriate concentration of FA can enhance plant tolerance to low nitrogen conditions and improve nitrogen use efficiency.

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Multiple Perspectives of Study on the Potential of Bacillus amyloliquefaciens JB20221020 for Alleviating Nutrient Stress in Lettuce

Bai,

Zheng,

et al. 2024

Curr Microbiol

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Plant nutrient stress adaptation: A prospect for fertilizer limited agriculture

Cited by 31 publications

References 332 publications

Insoluble-Phytate Improves Plant Growth and Arsenic Accumulation in As-Hyperaccumulator Pteris vittata: Phytase Activity, Nutrient Uptake, and As-Metabolism

Insoluble-Phytate Improves Plant Growth and Arsenic Accumulation in As-Hyperaccumulator Pteris vittata: Phytase Activity, Nutrient Uptake, and As-Metabolism

Fulvic acid alleviates the stress of low nitrogen on maize by promoting root development and nitrogen metabolism

Multiple Perspectives of Study on the Potential of Bacillus amyloliquefaciens JB20221020 for Alleviating Nutrient Stress in Lettuce

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