Plant-parasitic nematodes as a potential threat to protected agriculture: Current status and management options

Phani, Victor; Khan, Matiyar Rahaman; Rao, Uma

doi:10.1016/j.cropro.2021.105573

Cited by 83 publications

(45 citation statements)

References 95 publications

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“…When selecting control methods against PPNs, efficacy is of key importance, but compromising sustainability, ecological safety, and the special cultural and mechanical characteristics of an area [17] may be too high a price for a method that may not work in the long term.…”

Section: Discussionmentioning

confidence: 99%

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Composted Municipal Green Waste Infused with Biocontrol Agents to Control Plant Parasitic Nematodes—A Review

Bogdányi¹,

Pullai

Doshi³

et al. 2021

Microorganisms

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The last few years have witnessed the emergence of alternative measures to control plant parasitic nematodes (PPNs). We briefly reviewed the potential of compost and the direct or indirect roles of soil-dwelling organisms against PPNs. We compiled and assessed the most intensively researched factors of suppressivity. Municipal green waste (MGW) was identified and profiled. We found that compost, with or without beneficial microorganisms as biocontrol agents (BCAs) against PPNs, were shown to have mechanisms for the control of plant parasitic nematodes. Compost supports a diverse microbiome, introduces and enhances populations of antagonistic microorganisms, releases nematicidal compounds, increases the tolerance and resistance of plants, and encourages the establishment of a “soil environment” that is unsuitable for PPNs. Our compilation of recent papers reveals that while the scope of research on compost and BCAs is extensive, the role of MGW-based compost (MGWC) in the control of PPNs has been given less attention. We conclude that the most environmentally friendly and long-term, sustainable form of PPN control is to encourage and enhance the soil microbiome. MGW is a valuable resource material produced in significant amounts worldwide. More studies are suggested on the use of MGWC, because it has a considerable potential to create and maintain soil suppressivity against PPNs. To expand knowledge, future research directions shall include trials investigating MGWC, inoculated with BCAs.

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Section: Discussionmentioning

confidence: 99%

“…Not profitable for low-value crops; needs repeated usage and trained staff; toxic; enters the human food chain. [11,12,[15][16][17][18][19]…”

Section: Conventional Methods To Control Ppnsmentioning

confidence: 99%

Composted Municipal Green Waste Infused with Biocontrol Agents to Control Plant Parasitic Nematodes—A Review

Bogdányi¹,

Pullai

Doshi³

et al. 2021

Microorganisms

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“…The number of spores improved after 72 h, which revealed the colonization and proliferation of fungal spores on brinjal plants. Fungal bioagents either produce toxins to plant nematode parasites or parasitize on nematodes [ 36 ]. The fungus, P. formosus MD12 isolated from brinjal, showed an inhibitory effect on M. incognita.…”

Section: Discussionmentioning

confidence: 99%

Paecilomyces formosus MD12, a Biocontrol Agent to Treat Meloidogyne incognita on Brinjal in Green House

Baazeem

Alorabi

Palanisamy

et al. 2021

JoF

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The present study was carried out to analyze the potential of fungi isolated from the rhizosphere of soybean, brinjal, tomato, and potato plants. The density of fungi varied in the pot soil and rhizosphere after Paecilomyces formosus MD12 treatment. The P. formosus MD12 population was 6.3 ± 0.13 × 104 CFU g−1 in the pot planted with brinjal, and the population increased in the rhizosphere (6.72 ± 0.41 × 104 CFU g−1). P. formosus MD12 was cultured in the production medium, and the supernatant was used for egg inhibition studies on a root-knot nematode parasite, Meloidogyne incognita. It was revealed that maximum egg inhibition (94.7 ± 6.2%) was obtained at 100% concentration of extract. The culture supernatant from P. formosus MD12 affected the development of M. incognita juvenile, and the mortality rate was maximum after 96 h (95 ± 6%). Mortality was reduced when treated with 25%, 50%, and 75% supernatant. At 1 × 107 mL−1 of spore suspension, we found reductions of 71.6 ± 3.3% nematode populations in the soil, 60.7 ± 2.2% from the root, and 63.6 ± 2.4% egg mass compared with the control in the pot experiment. The culture supernatant applied at the 10% level showed a maximum mean reduction of the nematode population in roots (72.4 ± 2.2%), soil (77.9 ± 2.5%), and egg masses (73.2 ± 1.5%), respectively. The presence of P. formosus MD12 in a soil environment could antagonize nematode parasites and improve soil amendment. The P. formosus MD12 strain showed good biocontrol ability against the root-knot nematode, M. incognita, under in vitro and green house experimental condition.

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“…In other words, when plants are infiltrated and infected by RKNs, the intact root structure gets reduced to a small number of strikingly RKN-galled roots and the vascular system of the roots becomes extremely disorganized (Sitaramaiah and Pathak, 1993;Tordable et al, 2010). Like other PPNs, it is also characterized by stunted plants and reduced growth parameters, which ultimately leads to severe death of plant parts (Phani et al, 2021;Zvenyika, 2019). In response to nematode secretions, plants undergo many physiological and biochemical modifications to kill the pathogens.…”

Section: Impact Yield Loss and Feeding Habitmentioning

confidence: 99%

“…Meloidogyne spp., are among the most harmful plant nematodes in the world (Ralmi et al, 2016;López Gómez, 2015;Onkendi, 2012). In places where temperate RKN species predominate, increasing global warming may favor the expansion and proliferation of tropical RKN species also (García Mendívil, 2019;Phani et al, 2021). This reality highlights the importance of concentrating research efforts on developing and controlling tropical RKN species.…”

Section: Introductionmentioning

confidence: 99%

Breeding for Root-Knot Nematode Resistance in Eggplant: Progress and Prospects

Sharma¹,

Kaushik²

2021

Preprint

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Eggplant is a functional food owing to its anti-diabetic, anti-inflammatory, and cardio-protective properties. Root-knot nematodes (RKN) are a threat to the successful production of eggplant. RKN infestation manifests as root damage, stunted development, and structural deformations of the plant. RKN infestation can be managed using a variety of management techniques like soil amendments and chemical treatments. Breeding for nematode tolerance is critical for high yields and stable results. As a result, breeding approaches are the most efficient and cost-effective nematode management methods. Furthermore, with advances in breeding technology and genomics assistance, it is becoming more feasible and straightforward. As a result, we've compiled a list of the most recent breeding developments for Meloidogyne spp. resistance in eggplant. We hope this information will serve as an important resource for the eggplant breeders.

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Plant-parasitic nematodes as a potential threat to protected agriculture: Current status and management options

Cited by 83 publications

References 95 publications

Composted Municipal Green Waste Infused with Biocontrol Agents to Control Plant Parasitic Nematodes—A Review

Composted Municipal Green Waste Infused with Biocontrol Agents to Control Plant Parasitic Nematodes—A Review

Paecilomyces formosus MD12, a Biocontrol Agent to Treat Meloidogyne incognita on Brinjal in Green House

<strong>Breeding for </strong><strong>Root-Knot Nematode </strong><strong>Resistance in Eggplant: Progress and Prospects</strong>

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