Checking Agriculture’s Pulse: Field Pea (Pisum Sativum L.), Sustainability, and Phosphorus Use Efficiency

Powers, Sarah E.; Thavarajah, Dil

doi:10.3389/fpls.2019.01489

Cited by 50 publications

(54 citation statements)

References 56 publications

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“…The high availability of Fe and Al also leads to low availability of certain essential elements such as phosphorus, calcium, magnesium, and molybdenum (Vyas et al, 2007;Dambrine, 2018). Moreover, pea plants have high phosphorus requirements for nodule formation and its function and optimum photosynthesis (Powers and Thavarajah, 2019).…”

Section: Introductionmentioning

confidence: 99%

Pea (Pisum sativum l.) Plant Shapes Its Rhizosphere Microbiome for Nutrient Uptake and Stress Amelioration in Acidic Soils of the North-East Region of India

et al. 2020

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Rhizosphere microbiome significantly influences plant growth and productivity. Legume crops such as pea have often been used as a rotation crop along with rice cultivation in long-term conservation agriculture experiments in the acidic soils of the northeast region of India. It is essential to understand how the pea plant influences the soil communities and shapes its rhizosphere microbiome. It is also expected that the longterm application of nutrients and tillage practices may also have a lasting effect on the rhizosphere and soil communities. In this study, we estimated the bacterial communities by 16S rRNA gene amplicon sequencing of pea rhizosphere and bulk soils from a longterm experiment with multiple nutrient management practices and different tillage history. We also used Tax4Fun to predict the functions of bacterial communities. Quantitative polymerase chain reaction (qPCR) was used to estimate the abundance of total bacterial and members of Firmicutes in the rhizosphere and bulk soils. The results showed that bacterial diversity was significantly higher in the rhizosphere in comparison to bulk soils. A higher abundance of Proteobacteria was recorded in the rhizosphere, whereas the bulk soils have higher proportions of Firmicutes. At the genus level, proportions of Rhizobium, Pseudomonas, Pantoea, Nitrobacter, Enterobacter, and Sphingomonas were significantly higher in the rhizosphere. At the same time, Massilia, Paenibacillus, and Planomicrobium were more abundant in the bulk soils. Higher abundance of genes reported for plant growth promotion and several other genes, including iron complex outer membrane receptor, cobalt-zinc-cadmium resistance, sigma-70 factor, and ribonuclease E, was predicted in the rhizosphere samples in comparison to bulk soils, indicating that the pea plants shape their rhizosphere microbiome, plausibly to meet its requirements for nutrient uptake and stress amelioration.

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Section: Introductionmentioning

confidence: 99%

Pea (Pisum sativum l.) Plant Shapes Its Rhizosphere Microbiome for Nutrient Uptake and Stress Amelioration in Acidic Soils of the North-East Region of India

et al. 2020

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“…The PUE of crops [23,24] will be enhanced by improvements in either PUPE or PUTE. In wheat [25], maize [26], brassica [27], rice [28], cowpea [29], mungbean [30][31], eld pea [32], soybean [33], sorghum [34], pearl millet [35], chickpea [36], and pigeonpea [37], there was a high genetic diversity in crops for PUE and its component traits.…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: Effectiveness of the Classification for the Phosphorus Use Efficiency Traits at the Seedling Stage in Lentil

Rai

et al. 2020

Preprint

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Background: Understanding the morphology of the root system in lentils is critical for the identification of root characteristics for breeding cultivars with enhanced phosphorus use efficiency (PUE) to better adapt to poor P environments. PUE and variability in root morphological characteristics at the early vegetative stage were investigated among 40 indigenous and exotic lentil genotypes in a hydroponic phenotyping system.Results: A prerequisite for developing P-efficient crop cultivars is to categorise existing germplasm. In this experiment, 40 lentil genotypes were grown for 24 days under P deficit (3 μm KH2PO4) and P adequate (250 μm KH2PO4) conditions in hydroponics. Lentil genotypes exhibited significant variability for root, biomass, and P efficiency traits. Different techniques have identified various genotypes of lentils based on the efficiency of phosphorus uptake (PUPE) and the efficiency of phosphorus utilization (PUTE). IG 568229 showed the highest PUPE, while the wild ILWL-15 lentil showed the lowest PUPE in both media. The wild lentil ILWL-95 showed maximum PUTE under P adequate medium. The IC 560135, IG 334, IG 560157 and IG 568229 genotypes were found to be highly efficient at both P levels and to be ideal for a large range of P levels without having a drastic impact on biomass output.Conclusions: The primary step for breeding more P-efficient crop plants is the classification of the germplasm. IC 560135 and IC 268238 contrasting lentil lines may be useful for mapping population development, mapping and tagging of gene(s), QTLs for PUE in lentil. These efficient P crops also ensure food and nutritional security, in addition to reducing the cost of cultivation.

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“…The WinRhizo TM provided main and additional data to classify total root length (TRL), total root volume (TRV), total root surface area (TSA), and total root tips (TRT) into five classes of root diameter intervals: class1: (0–0.5 mm), class 2: (0.5–1.0 mm), class 3: (1.0–1.5 mm), class 4: (1.5–2.0 mm) and class 5: (>2.0 mm) [ 77 – 79 ]. In every class, the root traits were calculated as a proportion of the total trait [ 68 ].…”

Section: Methodsmentioning

confidence: 99%

Assessment of root phenotypes in mungbean mini-core collection (MMC) from the World Vegetable Center (AVRDC) Taiwan

et al. 2021

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Mungbean (Vigna radiata L.) is an important food grain legume, but its production capacity is threatened by global warming, which can intensify plant stress and limit future production. Identifying new variation of key root traits in mungbean will provide the basis for breeding lines with effective root characteristics for improved water uptake to mitigate heat and drought stress. The AVRDC mungbean mini core collection consisting of 296 genotypes was screened under modified semi-hydroponic screening conditions to determine the variation for fourteen root-related traits. The AVRDC mungbean mini core collection displayed wide variations for the primary root length, total surface area, and total root length, and based on agglomerative hierarchical clustering eight homogeneous groups displaying different root traits could be identified. Germplasm with potentially favorable root traits has been identified for further studies to identify the donor genotypes for breeding cultivars with enhanced adaptation to water-deficit stress and other stress conditions.

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Checking Agriculture’s Pulse: Field Pea (Pisum Sativum L.), Sustainability, and Phosphorus Use Efficiency

Cited by 50 publications

References 56 publications

Pea (Pisum sativum l.) Plant Shapes Its Rhizosphere Microbiome for Nutrient Uptake and Stress Amelioration in Acidic Soils of the North-East Region of India

Pea (Pisum sativum l.) Plant Shapes Its Rhizosphere Microbiome for Nutrient Uptake and Stress Amelioration in Acidic Soils of the North-East Region of India

WITHDRAWN: Effectiveness of the Classification for the Phosphorus Use Efficiency Traits at the Seedling Stage in Lentil

Assessment of root phenotypes in mungbean mini-core collection (MMC) from the World Vegetable Center (AVRDC) Taiwan

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