High-quality genome sequence of white lupin provides insight into soil exploration and seed quality

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: Jan. 24, 2020

White lupin (Lupinus albus L.) is an annual crop cultivated for its protein-rich seeds. It adapted to poor soils due the production of cluster roots, which are made dozens determinate lateral roots that drastically improve soil exploration and nutrient acquisition (mostly phosphate). Using long-read sequencing technologies, we provide a high-quality genome sequence accession white (2n = 50, 451 Mb), as well de novo assemblies landrace wild relative. We describe modern displaying increased capacity through early establishment roots. also show how seed quality may have been impacted by domestication in term protein profiles alkaloid content. The availability assembly together with companion genomic transcriptomic resources will enable development breeding strategies increase stabilize yield.

Language: Английский

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Interactions between arbuscular mycorrhizal and non‐mycorrhizal plants: do non‐mycorrhizal species at both extremes of nutrient availability play the same game?

Plant Cell & Environment, Journal Year: 2013, Volume and Issue: 36(11), P. 1911 - 1915

Published: April 16, 2013

This article comments on: Arbuscular mycorrhizal fungi reduce growth and infect roots of the non‐host plant Arabidopsis thaliana

Language: Английский

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Phosphorus nutrition of phosphorus-sensitive Australian native plants: threats to plant communities in a global biodiversity hotspot

Conservation Physiology, Journal Year: 2013, Volume and Issue: 1(1), P. cot010 - cot010

Published: May 17, 2013

South-western Australia harbours a global biodiversity hotspot on the world's most phosphorus (P)-impoverished soils. The greatest occurs severely nutrient-impoverished soils, where non-mycorrhizal species are prominent component of flora. Mycorrhizal dominate soils contain slightly more phosphorus. In addition to habitat loss and dryland salinity, major threat plant in this region is eutrophication due enrichment with P. Many south-western Australian extremely sensitive P, low capability down-regulate their phosphate-uptake capacity. Species from P-impoverished also very poor competitors at higher P availability, giving way competitive when soil concentrations increased. Sources increased include fire frequency, run-off agricultural land, urban activities. Another source P-fertilizing effect spraying natural environments landscape scale phosphite reduce impacts introduced pathogen Phytophthora cinnamomi, which itself serious biodiversity. We argue that alternatives for cinnamomi management needed urgently, propose strategy work towards such alternatives, based sound understanding physiological molecular mechanisms action plants susceptible cinnamomi. threats we describe likely be similar other environments, including fynbos South Africa cerrado Brazil.

Language: Английский

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Greater lateral root branching density in maize improves phosphorus acquisition from low phosphorus soil

Journal of Experimental Botany, Journal Year: 2018, Volume and Issue: 69(20), P. 4961 - 4970

Published: July 25, 2018

The development of crops with better growth under suboptimal phosphorus availability would improve food security in developing countries while reducing environmental pollution developed countries. We tested the hypothesis that maize (Zea mays) phenotypes greater lateral root branching density have acquisition from low soils. Recombinant inbred lines either 'many short' (MS) or 'few long' (FL) were grown high and conditions greenhouse mesocosms field. Under mesocosms, MS phenotype had 89% 48% more shoot biomass than FL lines. field, 16% shallower rooting depth (D95), 81% length top 20 cm soil, 49% content, 12% leaf photosynthesis, 19% biomass, 14% grain yield These results are consistent many, shorter roots improves merits consideration for genetic improvement efficiency other crops.

Language: Английский

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RUSSELL REVIEW Are plant roots only “in” soil or are they “of” it? Roots, soil formation and function

European Journal of Soil Science, Journal Year: 2022, Volume and Issue: 73(1)

Published: Jan. 1, 2022

Abstract Roots are near‐ubiquitous components of soils globally but have often been regarded as separate from the soil rather than a substantial factor in determining what is and how it functions. The start rapid formation commenced about 400 million years ago with emergence vascular plants evolution roots associated microbes. microorganisms contribute significantly to by altering rocks minerals through variety biogeochemical processes supply carbon depth that can long residence times. Living root inputs via rhizodeposits more efficient shoot litter forming slow‐cycling, mineral‐associated organic pools. current functionality providing food fuel fibres, supplying plant nutrients, filtering water flood regulation, disease suppression all dependent on activities roots. actively communicating collaborating other organisms for mutual benefit, signals underlying this modulation rhizosphere microbiome being identified. In review I examine (an organ not an organism) affect function conclude that, several perspectives, just “in” “of” definitions should recognise this. A possible definition is: “Soils altered surficial rock or sediment, composed matter, minerals, fluids, whose influenced weathering interactions these roots.” Highlights Paleoclimatic paleosoil research shows key role mycorrhiza formation. Deep living contributors long‐term C storage. Root/microbe signalling facilitates mutualistic symbioses, nutrient uptake suppression. Definitions explicitly include important component system.

Language: Английский

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