Molecular Mechanisms of Nematode-Nematophagous Microbe Interactions: Basis for Biological Control of Plant-Parasitic Nematodes

Li, Juan; Zou, Cheng‐Gang; Xu, Jianping; Ji, Xinglai; Niu, Xue‐Mei; Yang, Jinkui; Huang, Xiaowei; Zhang, Ke‐Qin

doi:10.1146/annurev-phyto-080614-120336

Cited by 211 publications

(143 citation statements)

References 139 publications

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“…Plant parasitic nematodes (PPNs) cause serious economic losses to farmers worldwide, at more than US $157 billion each year (Abad et al, 2008;Li et al, 2015). In accordance with their feeding mechanism,…”

Section: Introductionmentioning

confidence: 99%

“…(Sijmons et al, 1994). Among the PPNs, the Journal of Soil Science and Plant Nutrition, 2016, 16 (2), 507-524 root knot nematodes and cyst nematodes cause the most crop damage worldwide (Li et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…However, the effectiveness of these methods has been limited, and crop production is still under heavy threat from cyst nematodes. Additionally, the available chemical nematicides are being withdrawn from use because of their notorious toxicity to wildlife and human health (Li et al, 2015). Therefore, there is an urgent need to find novel, ecologically safe and effective management strategies to control cyst nematodes.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, several of these nematophagous microbes or their secondary metabolites have been developed as biological control agents (BCAs) (Li et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Phosphate solubilization by fungi with nematicidal potential

Lima-Rivera

López-Lima

Desgarennes

et al. 2016

J. Soil Sci. Plant Nutr.

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We evaluated the nematicidal potential and phosphate solubilization ability of the fungal species Geomyces pannorum and Paecilomyces carneus, which are associated with the potato cyst nematode Globodera rostochiensis. In a broth medium containing calcium phosphate, the two fungi solubilized between 67%-96% of the insoluble phosphorus that was present in the medium, and in a broth medium containing iron phosphate, the phosphorus that was solubilized by the two fungi ranged between 2%-13%. In a greenhouse experiment, G. pannorum and P. carneus were applied to soil that was naturally infested with G. rostochiensis and planted with Avena sativa. The fungi increased the available phosphorus in the soil by more than 30%, and Paecilomyces carneus also reduced the nematode population by 71%. This study is the first to report on the ability of G. pannorum and P. carneus to increase the available phosphorus in the soil, suggesting that these fungal species may have potential uses in agricultural soils with insoluble phosphorus. Moreover, this study provides a new alternative that contributes to the sustainable management of crops with bio-agents that have dual activity; they increase the available phosphorus in the soil and mitigate plant parasitic nematodes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In fact, several of these nematophagous microbes or their secondary metabolites have been developed as biological control agents (BCAs) (Li et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phosphate solubilization by fungi with nematicidal potential

Lima-Rivera

López-Lima

Desgarennes

et al. 2016

J. Soil Sci. Plant Nutr.

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“…Indeed, the utilization of beneficial bacterial nematicides has been proposed as a sustainable alternative for RKN management, and bacterial nematicides are also regarded as economical and ecologically friendly nematicides for the control of RKNs (3,6). Currently, for the bacterial control of RKNs, many problems remain, one of which is that nematicidal bacteria are relatively scarce.…”

mentioning

confidence: 99%

Alcaligenes faecalis ZD02, a Novel Nematicidal Bacterium with an Extracellular Serine Protease Virulence Factor

Lin

Zheng

et al. 2016

Appl Environ Microbiol

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Root knot nematodes (RKNs) are the world's most damaging plant-parasitic nematodes (PPNs), and they can infect almost all crops. At present, harmful chemical nematicides are applied to control RKNs. Using microbial nematicides has been proposed as a better management strategy than chemical control. In this study, we describe a novel nematicidal bacterium named Alcaligenes faecalis ZD02. A. faecalis ZD02 was isolated from Caenorhabditis elegans cadavers and has nematostatic and nematicidal activity, as confirmed by C. elegans growth assay and life span assay. In addition, A. faecalis ZD02 fermentation broth showed toxicity against C. elegans and Meloidogyne incognita. To identify the nematicidal virulence factor, the genome of strain ZD02 was sequenced. By comparing all of the predicted proteins of strain ZD02 to reported nematicidal virulence factors, we determined that an extracellular serine protease (Esp) has potential to be a nematicidal virulence factor, which was confirmed by bioassay on C. elegans and M. incognita. Using C. elegans as the target model, we found that both A. faecalis ZD02 and the virulence factor Esp can damage the intestines of C. elegans. The discovery that A. faecalis ZD02 has nematicidal activity provides a novel bacterial resource for the control of RKNs. P lant-parasitic nematodes (PPNs) are an important agricultural pest of many crops, and they cause agricultural losses amounting to an estimated $157 billion worldwide every year (1, 2). Root knot nematodes (RKNs; Meloidogyne spp.) are the most damaging crop PPNs, and they are capable of infecting almost all crops (2, 3). The management of RKNs is more difficult than that of other pests because RKNs are obligate root parasites of thousands of plant species, and most of the life cycle of RKNs is spent as parasites in the host roots (2, 4). The current means of controlling RKNs relies on chemical nematicides, which are often toxic and harmful to humans and the environment (3). In addition, chemical nematicides are generally expensive and cannot provide longterm RKN suppression (5).Biological control of RKNs is a better management strategy that avoids the potential environmental problems associated with the chemical control of RKNs. Indeed, the utilization of beneficial bacterial nematicides has been proposed as a sustainable alternative for RKN management, and bacterial nematicides are also regarded as economical and ecologically friendly nematicides for the control of RKNs (3, 6). Currently, for the bacterial control of RKNs, many problems remain, one of which is that nematicidal bacteria are relatively scarce. Only a few bacteria have been reported to possess nematicidal activity and to show potential for the biological control of RKNs. The typical nematicidal bacteria are Bacillus, Pseudomonas, and Pasteuria species (4, 7). Identifying novel nematicidal bacteria has become urgent for the bacterial control of RKNs and is of vital practical and economic significance.However, until now, it has been a challenge to isolate novel nematici...

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Fungi

Hajek

Meyling

2017

Ecology of Invertebrate Diseases

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Molecular Mechanisms of Nematode-Nematophagous Microbe Interactions: Basis for Biological Control of Plant-Parasitic Nematodes

Cited by 211 publications

References 139 publications

Phosphate solubilization by fungi with nematicidal potential

Phosphate solubilization by fungi with nematicidal potential

Alcaligenes faecalis ZD02, a Novel Nematicidal Bacterium with an Extracellular Serine Protease Virulence Factor

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