Phosphorus-fertilisation has differential effects on leaf growth and photosynthetic capacity of Arachis hypogaea L.

Shi, Qingwen; Pang, Jiayin; Yong, Jean Wan Hong; Bai, Chen; Pereira, Caio Guilherme; Song, Qiaobo; Wu, Di; Dong, Qiaoxiang; Cheng, Xin; Feng, Wang; Zheng, Junlin; Liu, Yifei; Lambers, Hans

doi:10.1007/s11104-019-04041-w

Cited by 57 publications

(37 citation statements)

References 86 publications

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“…When N or P are in short supply, rates of leaf cell division and elongation decline, while photosynthesis continues [16,17,63], resulting in leaves having surplus photosynthates. The photosynthetic machinery depends on photosynthate removal from the site of synthesis in order to avoid feedback inhibition [11,64] and consequent photodamage.…”

Section: Consequences Of Nutrient Limitation On Leaf C Metabolismmentioning

confidence: 99%

Surplus Carbon Drives Allocation and Plant–Soil Interactions

Prescott

Grayston

Helmisaari

et al. 2020

Trends in Ecology & Evolution

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Plant growth is usually constrained by the availability of nutrients, water, or temperature, rather than photosynthetic carbon (C) fixation. Under these conditions leaf growth is curtailed more than C fixation, and the surplus photosynthates are exported from the leaf. In plants limited by nitrogen (N) or phosphorus (P), photosynthates are converted into sugars and secondary metabolites. Some surplus C is translocated to roots and released as root exudates or transferred to root-associated microorganisms. Surplus C is also produced under low moisture availability, low temperature, and high atmospheric CO 2 concentrations, with similar below-ground effects. Many interactions among above-and belowground ecosystem components can be parsimoniously explained by the production, distribution, and release of surplus C under conditions that limit plant growth. What Drives Carbon Allocation in Plants? Highlights Plant growth is normally constrained by nutrients, water or temperature, not photosynthesis, and plants often have surplus carbohydrates. Secondary metabolites are produced in N-limited plants primarily to dispose of surplus carbon, although they may subsequently help reduce browsing damage. Surplus carbohydrates are translocated from leaves and below ground some are discharged via exudates and mycorrhizal fungi. Root exudates contain more of the elements that plants have in surplus, and less of those in short supply. The abundance and type of mycorrhizal fungi is influenced by the amount and composition of surplus carbon in roots. Surplus carbon provides an alternative lens though which to view interactions between plants and soil organisms.

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Section: Consequences Of Nutrient Limitation On Leaf C Metabolismmentioning

confidence: 99%

Surplus Carbon Drives Allocation and Plant–Soil Interactions

Prescott

Grayston

Helmisaari

et al. 2020

Trends in Ecology & Evolution

Self Cite

229

151

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“…In the real world, multiple stress episodes affecting growth and development are common ( Suzuki et al, 2014 ). Any excessive high light situation could be exacerbated further with a co-occurring high temperature ( Sun et al, 2017 ; Lu et al, 2020 ), low temperature ( Liu et al, 2013 ; Song et al, 2020 ; Wu et al, 2020 ), phosphorus deficiency ( Carstensen et al, 2018 ; Shi et al, 2019 ) and drought ( Wada et al, 2019 ). Plants have evolved several adaptations to cope with the unfavorable light situation: adjusting leaf orientation, ROS scavenging competence ( Gill and Tuteja, 2010 ), xanthophyll cycle ( Kuczynska et al, 2020 ), state transitions strategy ( Hepworth et al, 2021 ), cyclic electron transport (CET; Yadav et al, 2020 ) and photorespiration ( Storti et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

The Physiological Functionality of PGR5/PGRL1-Dependent Cyclic Electron Transport in Sustaining Photosynthesis

Liu

Bai

et al. 2021

Front. Plant Sci.

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The cyclic electron transport (CET), after the linear electron transport (LET), is another important electron transport pathway during the light reactions of photosynthesis. The proton gradient regulation 5 (PGR5)/PRG5-like photosynthetic phenotype 1 (PGRL1) and the NADH dehydrogenase-like complex pathways are linked to the CET. Recently, the regulation of CET around photosystem I (PSI) has been recognized as crucial for photosynthesis and plant growth. Here, we summarized the main biochemical processes of the PGR5/PGRL1-dependent CET pathway and its physiological significance in protecting the photosystem II and PSI, ATP/NADPH ratio maintenance, and regulating the transitions between LET and CET in order to optimize photosynthesis when encountering unfavorable conditions. A better understanding of the PGR5/PGRL1-mediated CET during photosynthesis might provide novel strategies for improving crop yield in a world facing more extreme weather events with multiple stresses affecting the plants.

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“…In line with the previous report by Pang et al [ 28 ] on legumes, we found an increased N concentration in leaves under P0, followed by a substantial decrease until P12, but recovery at increased P application to P30 and P40 ( Figure 2 B). This could explain the results with respect to the relative increase of leaf chlorophyll ( Figure 1 E), which is approximately proportional to leaf N under P limiting condition [ 29 ]. The accumulation of N under P deficiency and toxicity could be an adaptive response to meet the N demand for protein synthesis under stress conditions [ 30 ].…”

Section: Discussionmentioning

confidence: 95%

Morphological and Metabolite Responses of Potatoes under Various Phosphorus Levels and Their Amelioration by Plant Growth-Promoting Rhizobacteria

Chea

Pfeiffer

Schneider

et al. 2021

IJMS

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Low phosphorus (P) availability is a major limiting factor for potatoes. P fertilizer is applied to enhance P availability; however, it may become toxic when plants accumulate at high concentrations. Therefore, it is necessary to gain more knowledge of the morphological and biochemical processes associated with P deficiency and toxicity for potatoes, as well as to explore an alternative approach to ameliorate the P deficiency condition. A comprehensive study was conducted (I) to assess plant morphology, mineral allocation, and metabolites of potatoes in response to P deficiency and toxicity; and (II) to evaluate the potency of plant growth-promoting rhizobacteria (PGPR) in improving plant biomass, P uptake, and metabolites at low P levels. The results revealed a reduction in plant height and biomass 60–80% under P deficiency compared to P optimum. P deficiency and toxicity conditions also altered the mineral concentration and allocation in plants due to nutrient imbalance. The stress induced by both P deficiency and toxicity was evident from an accumulation of proline and total free amino acids in young leaves and roots. Furthermore, root metabolite profiling revealed that P deficiency reduced sugars by 50–80% and organic acids by 20–90%, but increased amino acids by 1.5–14.8 times. However, the effect of P toxicity on metabolic changes in roots was less pronounced. Under P deficiency, PGPR significantly improved the root and shoot biomass, total root length, and root surface area by 32–45%. This finding suggests the potency of PGPR inoculation to increase potato plant tolerance under P deficiency.

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Phosphorus-fertilisation has differential effects on leaf growth and photosynthetic capacity of Arachis hypogaea L.

Cited by 57 publications

References 86 publications

Surplus Carbon Drives Allocation and Plant–Soil Interactions

Surplus Carbon Drives Allocation and Plant–Soil Interactions

The Physiological Functionality of PGR5/PGRL1-Dependent Cyclic Electron Transport in Sustaining Photosynthesis

Morphological and Metabolite Responses of Potatoes under Various Phosphorus Levels and Their Amelioration by Plant Growth-Promoting Rhizobacteria

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