Future Biological Control for Soybean Cyst Nematode

Koike, Masanori; Shinya, Ryoji; Aiuchi, Daigo; Mori, M.; Ogino, Rui; Shinomiya, Hiroto; Tani, Masayuki; Goettel, Mark S.

doi:10.5772/20690

Cited by 5 publications

(7 citation statements)

References 44 publications

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“…Due to its simplicity, the use of the nit mutant system has become a standard test for grouping fungal isolates into vegetative compatibility groups (VCGs), which consist of all strains of a fungal species that are capable of undergoing vegetative fusion and stable heterokaryon formation with each other [ 46 ]. The nit mutant system also has several biotechnological applications, including the creation of hybrid biological control agents [ 56 , 57 ].…”

Section: Vegetative Compatibilitymentioning

confidence: 99%

“…Individual parent strains were either virulent at high humidity or could survive low humidity, but neither possessed both characteristics, limiting their usefulness as biocontrol agents. A later study tested hybrids formed from protoplast fusion between these strains for their ability to control several pests, including whiteflies, aphids, and soybean cyst nematodes [ 57 ]. Several hybrid strains outperformed Vertalec ® and Mycotal ® in terms of insect mortality and infection, and one hybrid strain reduced soybean cyst nematode cyst and egg density at a significantly higher rate than the commercial formulations.…”

Section: Biocontrol Of Insects and Nematodesmentioning

confidence: 99%

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Two genomes are better than one: history, genetics, and biotechnological applications of fungal heterokaryons

Strom

Bushley

2016

Fungal Biol Biotechnol

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Heterokaryosis is an integral part of the parasexual cycle used by predominantly asexual fungi to introduce and maintain genetic variation in populations. Research into fungal heterokaryons began in 1912 and continues to the present day. Heterokaryosis may play a role in the ability of fungi to respond to their environment, including the adaptation of arbuscular mycorrhizal fungi to different plant hosts. The parasexual cycle has enabled advances in fungal genetics, including gene mapping and tests of complementation, dominance, and vegetative compatibility in predominantly asexual fungi. Knowledge of vegetative compatibility groups has facilitated population genetic studies and enabled the design of innovative methods of biocontrol. The vegetative incompatibility response has the potential to be used as a model system to study biological aspects of some human diseases, including neurodegenerative diseases and cancer. By combining distinct traits through the formation of artificial heterokaryons, fungal strains with superior properties for antibiotic and enzyme production, fermentation, biocontrol, and bioremediation have been produced. Future biotechnological applications may include site-specific biocontrol or bioremediation and the production of novel pharmaceuticals.

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Section: Vegetative Compatibilitymentioning

confidence: 99%

Section: Biocontrol Of Insects and Nematodesmentioning

confidence: 99%

Two genomes are better than one: history, genetics, and biotechnological applications of fungal heterokaryons

Strom

Bushley

2016

Fungal Biol Biotechnol

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“…This further emphasizes the need for molecular studies to identify natural fungal parasites of SCN eggs. Recent rDNA evaluations have separated the entomopathogenic strains of V. lecanii into a separate genus (Lecanicillium) and resolved it into several species (Koike et al, 2011), each with differing abilities to colonize SCN. Owing to its ability to colonize insects, Lecanicillium spp.…”

Section: Family Cordycipitaceae: Lecanicilliummentioning

confidence: 99%

Fungal communities associated with Heterodera glycines and their potential in biological control: a current update

Haarith

Bushley

Chen

2020

Journal of Nematology

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The soybean cyst nematode (SCN) is the most important pest on soybean, a major crop worldwide. The SCN is considered both parasitic and pathogenic as it derives nutrition from the host and manipulates host physiology to do so. Currently, there are no commercially available chemicals that are specific, environmentally safe and cost effective to control SCN levels. Crop rotation, use of host resistance and other cultural practices remain the main management strategies. The need for bioprospecting other methods of controlling SCN is paramount, and fungi show promise in that respect. Several studies have evaluated fungi and fungal products as biocontrol options against plant-parasitic nematodes. This review discusses fungal genera isolated from the SCN with potential for use as biocontrol agents and the effects of their secondary metabolites on various stages of SCN development. The review also summarizes efforts to control SCN using soil amendments that could potentially impact fungal communities in the soil.

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“…Routine diagnostics of soil samples from farmlands is vital in maintaining healthy crop yields as it can help discover sources of plant disease. One common source of low crop yields are nematodes or plant-parasitic roundworms that hatch in the soil and find their way into the plant host system during its later growth stages [35]. Among the many nematode species available in nature, the nematode Heterodera glycines or soybean cyst nematodes (SCN) is particularly important because of its relevance to the multi-billion dollar soybean crop industry and the mammoth annual losses it causes to this staple crop worldwide [35].…”

Section: Introductionmentioning

confidence: 99%

“…One common source of low crop yields are nematodes or plant-parasitic roundworms that hatch in the soil and find their way into the plant host system during its later growth stages [35]. Among the many nematode species available in nature, the nematode Heterodera glycines or soybean cyst nematodes (SCN) is particularly important because of its relevance to the multi-billion dollar soybean crop industry and the mammoth annual losses it causes to this staple crop worldwide [35]. In order to reduce the effects of nematodes on crop yield, farmers often resort to methods such as crop rotation and use of seed treatments and nematicides.…”

Section: Introductionmentioning

confidence: 99%

Low-cost methods of on-demand fluid flow, nematode egg separation and counting

Weinstein

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Future Biological Control for Soybean Cyst Nematode

Cited by 5 publications

References 44 publications

Two genomes are better than one: history, genetics, and biotechnological applications of fungal heterokaryons

Two genomes are better than one: history, genetics, and biotechnological applications of fungal heterokaryons

Fungal communities associated with Heterodera glycines and their potential in biological control: a current update

Low-cost methods of on-demand fluid flow, nematode egg separation and counting

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