Plant-Parasitic Nematodes and Their Biocontrol Agents: Current Status and Future Vistas

2020 ◽  
pp. 171-203
Author(s):  
Mahfouz M. M. Abd-Elgawad
Keyword(s):  
Biocontrol Agents ◽  
Current Status ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Plant Parasitic

scholarly journals Resistance to Plant-Parasitic Nematodes in Chickpea: Current Status and Future Perspectives

2019 ◽  
Vol 10 ◽  
Author(s):  
Rebecca S. Zwart ◽  
Mahendar Thudi ◽  
Sonal Channale ◽  
Praveen K. Manchikatla ◽  
Rajeev K. Varshney ◽  
...  
Keyword(s):  
Current Status ◽  
Parasitic Nematodes ◽  
Future Perspectives ◽  
Plant Parasitic Nematodes ◽  
Plant Parasitic

scholarly journals Predatory ability of Arthrobotrys musiformis and Monacrosporium thaumasium on Scutellonema bradys

2006 ◽  
Vol 63 (4) ◽  
pp. 396-398 ◽  
Author(s):  
Ana Cristina Fermino Soares ◽  
Carla da Silva Sousa ◽  
João Luiz Coimbra ◽  
Gisele da Silva Machado ◽  
Marlon da Silva Garrido ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Biocontrol Agents ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Dry Rot ◽  
Single Ring ◽  
Petri Dishes ◽  
Rot Disease ◽  
Plant Parasitic

Scutellonema bradys (Steiner & LeHew) Andrassy is the most important yam nematode in the State of Bahia, Brazil, being responsible for the decay of yam tubers, known as dry rot disease. Nematode-trapping fungi are potential biocontrol agents against plant parasitic nematodes. The in vitro predatory ability of Arthrobotrys musiformis Drechsler and Monacrosporium thaumasium Drechsler on S. bradys was evaluated. The fungi were grown in PDA medium, than transferred to the center of Petri dishes with 2% agar plus water. After 14 days of the fungal cultures incubation, 150 nematodes were added to the dishes. For a period of 5 days, at 24-hour intervals, the number of captured nematodes was counted. Both fungi formed trapping structures of single ring and three-dimensional adhesive network types, 24 hours after the addition of the nematodes to the fungal cultures. The percentage of nematodes captured by each fungus increased linearly with time, reaching 94.6% and 97.3% of captured nematodes by A. musiformis and M. thaumasium, respectively, at the fifth day of evaluation. Both fungi presented good predatory ability upon S. bradys. This is the first report of nematophagous fungi capturing S. bradys. Further studies should evaluate the potential of these fungi as biocontrol agents of S. bradys in yam plantations.

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

2021 ◽  
Vol 9 (10) ◽  
pp. 2130
Author(s):  
Franciska Tóthné Bogdányi ◽  
Krisztina Boziné Pullai ◽  
Pratik Doshi ◽  
Eszter Erdős ◽  
Lilla Diána Gilián ◽  
...  
Keyword(s):  
Control Plant ◽  
Biocontrol Agents ◽  
Soil Microbiome ◽  
Future Research ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Green Waste ◽  
Antagonistic Microorganisms ◽  
Alternative Measures ◽  
Plant Parasitic

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.

RNA interference in plant parasitic nematodes: a summary of the current status

Parasitology ◽  
2012 ◽  
Vol 139 (5) ◽  
pp. 630-640 ◽  
Author(s):  
C. J. LILLEY ◽  
L. J. DAVIES ◽  
P. E. URWIN
Keyword(s):  
Rna Interference ◽  
Gene Silencing ◽  
Cell Types ◽  
Current Status ◽  
Parasitic Nematodes ◽  
Rnai Phenotype ◽  
Plant Parasitic Nematodes ◽  
Systemic Rnai ◽  
Plant Parasitic

SUMMARYRNA interference (RNAi) has emerged as an invaluable gene-silencing tool for functional analysis in a wide variety of organisms, particularly the free-living model nematode Caenorhabditis elegans. An increasing number of studies have now described its application to plant parasitic nematodes. Genes expressed in a range of cell types are silenced when nematodes take up double stranded RNA (dsRNA) or short interfering RNAs (siRNAs) that elicit a systemic RNAi response. Despite many successful reports, there is still poor understanding of the range of factors that influence optimal gene silencing. Recent in vitro studies have highlighted significant variations in the RNAi phenotype that can occur with different dsRNA concentrations, construct size and duration of soaking. Discrepancies in methodology thwart efforts to reliably compare the efficacy of RNAi between different nematodes or target tissues. Nevertheless, RNAi has become an established experimental tool for plant parasitic nematodes and also offers the prospect of being developed into a novel control strategy when delivered from transgenic plants.

scholarly journals Genetic Resistance of Wheat towards Plant-Parasitic Nematodes: Current Status and Future Prospects

2021 ◽  
Vol 30 (1) ◽  
pp. 43-62
Author(s):  
Awol SEİD ◽  
Mustafa İMREN ◽  
Muhammed Amjad ALİ ◽  
Fateh TOUMİ ◽  
Timothy PAULİTZ ◽  
...  
Keyword(s):  
Genetic Resistance ◽  
Current Status ◽  
Parasitic Nematodes ◽  
Future Prospects ◽  
Plant Parasitic Nematodes ◽  
Plant Parasitic

Management of Plant-Parasitic Nematodes in Florida Cotton Production

EDIS ◽  
2017 ◽  
Vol 2017 (2) ◽  
pp. 8
Author(s):  
Zane Grabau
Keyword(s):  
Parasitic Nematodes ◽  
Cotton Production ◽  
Plant Parasitic Nematodes ◽  
Fact Sheet ◽  
Plant Parasitic

This 8-page fact sheet written by Zane J. Grabau and published in January 2017 by the UF Department of Entomology and Nematology explains how to diagnose and manage nematode problems in cotton production.­http://edis.ifas.ufl.edu/ng015

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