The Experts below are selected from a list of 138771 Experts worldwide ranked by ideXlab platform
Stefan Geisen - One of the best experts on this subject based on the ideXlab platform.
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Rhizosphere protists are key determinants of Plant Health
Microbiome, 2020Co-Authors: Wu Xiong, Yuqi Song, Keming Yang, Zhong Wei, George A. Kowalchuk, Alexandre Jousset, Qirong Shen, Stefan GeisenAbstract:Plant Health is intimately influenced by the rhizosphere microbiome, a complex assembly of organisms that changes markedly across Plant growth. However, most rhizosphere microbiome research has focused on fractions of this microbiome, particularly bacteria and fungi. It remains unknown how other microbial components, especially key microbiome predators—protists—are linked to Plant Health. Here, we investigated the holistic rhizosphere microbiome including bacteria, microbial eukaryotes (fungi and protists), as well as functional microbial metabolism genes. We investigated these communities and functional genes throughout the growth of tomato Plants that either developed disease symptoms or remained Healthy under field conditions. We found that pathogen dynamics across Plant growth is best predicted by protists. More specifically, communities of microbial-feeding phagotrophic protists differed between later Healthy and diseased Plants at Plant establishment. The relative abundance of these phagotrophs negatively correlated with pathogen abundance across Plant growth, suggesting that predator-prey interactions influence pathogen performance. Furthermore, phagotrophic protists likely shifted bacterial functioning by enhancing pathogen-suppressing secondary metabolite genes involved in mitigating pathogen success. We illustrate the importance of protists as top-down controllers of microbiome functioning linked to Plant Health. We propose that a holistic microbiome perspective, including bacteria and protists, provides the optimal next step in predicting Plant performance.
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Rhizosphere immunity: targeting the underground for sustainable Plant Health management
Frontiers of Agricultural Science and Engineering, 2020Co-Authors: Zhong Wei, Alexandre Jousset, Stefan Geisen, Ville-petri Friman, Thomas Pommier, Qirong ShenAbstract:Managing Plant Health is a great challenge for modern food production and is further complicated by the lack of common ground between the many disciplines involved in disease control. Here we present the concept of rhizosphere immunity, in which Plant Health is considered as an ecosystem level property emerging from networks of interactions between Plants, microbiota and the surrounding soil matrix. These interactions can potentially extend the innate Plant immune system to a point where the rhizosphere immunity can fulfil all four core functions of a full immune system: pathogen prevention, recognition, response and homeostasis. We suggest that considering Plant Health from a meta-organism perspective will help in developing multidisciplinary pathogen management strategies that focus on steering the whole Plant-microbe-soil networks instead of individual components. This might be achieved by bringing together the latest discoveries in phytopathology, microbiome research, soil science and agronomy to pave the way toward more sustainable and productive agriculture.
Peter A H M Bakker - One of the best experts on this subject based on the ideXlab platform.
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the rhizosphere microbiome and Plant Health
Trends in Plant Science, 2012Co-Authors: Roeland L Berendsen, Corne M J Pieterse, Peter A H M BakkerAbstract:The diversity of microbes associated with Plant roots is enormous, in the order of tens of thousands of species. This complex Plant-associated microbial community, also referred to as the second genome of the Plant, is crucial for Plant Health. Recent advances in Plant–microbe interactions research revealed that Plants are able to shape their rhizosphere microbiome, as evidenced by the fact that different Plant species host specific microbial communities when grown on the same soil. In this review, we discuss evidence that upon pathogen or insect attack, Plants are able to recruit protective microorganisms, and enhance microbial activity to suppress pathogens in the rhizosphere. A comprehensive understanding of the mechanisms that govern selection and activity of microbial communities by Plant roots will provide new opportunities to increase crop production.
Wu Xiong - One of the best experts on this subject based on the ideXlab platform.
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Rhizosphere protists are key determinants of Plant Health
Microbiome, 2020Co-Authors: Wu Xiong, Yuqi Song, Keming Yang, Zhong Wei, George A. Kowalchuk, Alexandre Jousset, Qirong Shen, Stefan GeisenAbstract:Plant Health is intimately influenced by the rhizosphere microbiome, a complex assembly of organisms that changes markedly across Plant growth. However, most rhizosphere microbiome research has focused on fractions of this microbiome, particularly bacteria and fungi. It remains unknown how other microbial components, especially key microbiome predators—protists—are linked to Plant Health. Here, we investigated the holistic rhizosphere microbiome including bacteria, microbial eukaryotes (fungi and protists), as well as functional microbial metabolism genes. We investigated these communities and functional genes throughout the growth of tomato Plants that either developed disease symptoms or remained Healthy under field conditions. We found that pathogen dynamics across Plant growth is best predicted by protists. More specifically, communities of microbial-feeding phagotrophic protists differed between later Healthy and diseased Plants at Plant establishment. The relative abundance of these phagotrophs negatively correlated with pathogen abundance across Plant growth, suggesting that predator-prey interactions influence pathogen performance. Furthermore, phagotrophic protists likely shifted bacterial functioning by enhancing pathogen-suppressing secondary metabolite genes involved in mitigating pathogen success. We illustrate the importance of protists as top-down controllers of microbiome functioning linked to Plant Health. We propose that a holistic microbiome perspective, including bacteria and protists, provides the optimal next step in predicting Plant performance.
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Rhizosphere protists are key determinants of Plant Health
2020Co-Authors: Wu Xiong, Song Yuqi, Yang Keming, Gu Yian, Wei Zhong, Kowalchuk, George A., Xu Yangchun, Jousset Alexandre, Shen Qirong, Geisen StefanAbstract:Background: Plant Health is intimately influenced by the rhizosphere microbiome, a complex assembly of organisms that changes markedly across Plant growth. However, most rhizosphere microbiome research has focused on fractions of this microbiome, particularly bacteria and fungi. It remains unknown how other microbial components, especially key microbiome predators - protists - are linked to Plant Health. Here, we investigated the holistic rhizosphere microbiome including bacteria, microbial eukaryotes (fungi and protists), as well as functional microbial metabolism genes. We investigated these communities and functional genes throughout the growth of tomato Plants that either developed disease symptoms or remained Healthy under field conditions. Results: We found that pathogen dynamics across Plant growth is best predicted by protists. More specifically, communities of microbial-feeding phagotrophic protists differed between later Healthy and diseased Plants at Plant establishment. The relative abundance of these phagotrophs negatively correlated with pathogen abundance across Plant growth, suggesting that predator-prey interactions influence pathogen performance. Furthermore, phagotrophic protists likely shifted bacterial functioning by enhancing pathogen-suppressing secondary metabolite genes involved in mitigating pathogen success. Conclusions: We illustrate the importance of protists as top-down controllers of microbiome functioning linked to Plant Health. We propose that a holistic microbiome perspective, including bacteria and protists, provides the optimal next step in predicting Plant performance. [MediaObject not available: see fulltext.]
Roeland L Berendsen - One of the best experts on this subject based on the ideXlab platform.
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the rhizosphere microbiome and Plant Health
Trends in Plant Science, 2012Co-Authors: Roeland L Berendsen, Corne M J Pieterse, Peter A H M BakkerAbstract:The diversity of microbes associated with Plant roots is enormous, in the order of tens of thousands of species. This complex Plant-associated microbial community, also referred to as the second genome of the Plant, is crucial for Plant Health. Recent advances in Plant–microbe interactions research revealed that Plants are able to shape their rhizosphere microbiome, as evidenced by the fact that different Plant species host specific microbial communities when grown on the same soil. In this review, we discuss evidence that upon pathogen or insect attack, Plants are able to recruit protective microorganisms, and enhance microbial activity to suppress pathogens in the rhizosphere. A comprehensive understanding of the mechanisms that govern selection and activity of microbial communities by Plant roots will provide new opportunities to increase crop production.
Anne J. Anderson - One of the best experts on this subject based on the ideXlab platform.
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Rhizosphere pseudomonads as probiotics improving Plant Health
Molecular Plant Pathology, 2018Co-Authors: Anne J. AndersonAbstract:Many root-colonizing microbes are multifaceted in traits that improve Plant Health. Although isolates designated as biological control agents directly reduce pathogen growth, many exert additional beneficial features that parallel changes induced in animal and other hosts by Health-promoting microbes termed probiotics. Both animal and Plant probiotics cause direct antagonism of pathogens and induce systemic immunity in the host to pathogens and other stresses. They also alter host development and improve host nutrition. The probiotic root-colonizing pseudomonads are generalists in terms of Plant hosts, soil habitats and the array of stress responses that are ameliorated in the Plant. This article illustrates how the probiotic pseudomonads, nurtured by the carbon (C) and nitrogen (N) sources released by the Plant in root exudates, form protective biofilms on the root surface and produce the metabolites or enzymes to boost Plant Health. The findings reveal the multifunctional nature of many of the microbial metabolites in the Plant-probiotic interplay. The beneficial effects of probiotics on Plant function can contribute to sustainable yield and quality in agricultural production.
