A new entomopathogenic nematode, Steinernema robustispiculum n. sp. (Rhabditida: Steinernematidae), from Chumomray National Park in Vietnam

Phan, Long Ke; Subbotin, Sergei A.; Waeyenberge, Lieven; Moens, Maurice

doi:10.1007/s11230-004-1373-x

Cited by 21 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surveys carried out in Vietnam revealed the presence of already described and some new species. S. tami (Luc et al, 2000), S. loci (Phan et al, 2001a), S. sangi (Phan et al, 2001a), S. thanhi (Phan et al, 2001b), S. robustispiculum (Phan et al, 2005), S. backanense (Phan et al, 2006a, b), S. cumgarense (Phan et al, 2006a, b), S. eapokense (Phan et al, 2006a, b), S. sasonense (Phan et al, 2006a, b), and S. huense (Phan et al, 2014) are some species of Steinernematids recorded from Vietnam. Among heterorhabditids, H. baujardi (Phan et al, 2003) has been found new to this country.…”

Section: Vietnammentioning

confidence: 99%

Global distribution of entomopathogenic nematodes, Steinernema and Heterorhabditis

Bhat

Chaubey

Askary

2020

Egypt J Biol Pest Control

100

View full text Add to dashboard Cite

Entomopathogenic nematodes (EPNs) in the families' Steinernematidae and Heterorhabditidae are obligate insect parasites. Their easy multiplication, broad host range, compatibility with chemical pesticides, and ease in application has grabbed interest among research practitioners to work on these beneficial microorganisms. Till date, around 100 valid species of Steinernema and 21 species of Heterorhabditis have been identified from different countries of the world. Extensive surveys have been conducted across the globe to isolate locally adapted EPN species and exploit them to suppress soil-dwelling and foliar insect pests in agricultural fields. Most of the new species have been described from Asia, whereas research in some Asian countries are still at infancy. Some new species have been recorded from Australia but very few surveys have been conducted in New Zealand. Likewise, less information about these tiny creatures is from Central America; however, in North America many new species have been described, some of which have been commercialized for insect pest control, whereas in South America, several native nematode species have been described and exploited as biological control agents. European countries have also been explored for EPN diversity and new species have been reported, exploited under field condition, and commercialized. Many new species and other previously described species have been reported from Africa. Despite frequent surveys in different continents of the world, number of sites touched are low and, therefore, further surveys are still needed to explore untouched geographic areas and climatic conditions, both in plantations and indigenous forests with an aim to identify and exploit additional EPN species.

show abstract

Section: Vietnammentioning

confidence: 99%

Global distribution of entomopathogenic nematodes, Steinernema and Heterorhabditis

Bhat

Chaubey

Askary

2020

Egypt J Biol Pest Control

100

View full text Add to dashboard Cite

show abstract

“…Most of entomopathogenic nematodes previously were unknown and their comprehensive studies based on morphological and molecular characterization as well as conducting some cross breeding tests allowed imaging a picture of the biodiversity of EPN in Vietnam [7,[9][10][11][12]. Concurrently with taxonomy works, the pathogenicity tests based on the indigenous isolates were obtained with Galleria mellonella and then with some insect pests to evaluate the potential of indigenous isolates for biological control.…”

Section: Entomopathogenicmentioning

confidence: 99%

The evaluation of multiplication capacity in Galleria of entomopathogenic nematode isolates from Vietnam

Châu¹,

My²,

Duyen³

et al. 2012

V J Bio

View full text Add to dashboard Cite

A total of 43 isolates of entomopathogenic nematodes of Vietnam were assessed on reproduction capacity in the last instar larvae of great wax moth (Galleria mellonella). The total yield of infective juveniles (IJs) on the Galleria mellonella were varied between indigenous isolates with significant different of multiplication. The amounts of IJs were produced in each Galleria from several thousands to hundreds thousands. These were shown a great difference of the reproduction capacity between indigenous isolates/species of entomopathogenic nematodes. In general, the multiplications of Steinernema isolates were lower than the multiplication of Heterorhabditis isolates. Among Steinernema isolates, however, the multiplications of some isolates were relatively low such as isolate S-DL9 (S. eapokense) with 4,378 ± 509 IJs, whereas other ones were relatively high such as S-TX1 (S. sangi) with 68,343 ± 8,942 IJs. These were also occurred significant difference between isolates within species that were particularly happened isolates of Heterorhabditis indica with average yields varieties from 18,900 IJs at H-PP16 to 233,500 ± 39,100 at H-NT3. The experiments showed the relationship between multiplication capacity of IJs and inoculation concentration and each isolate has an optimal inoculation concentration for highest multiplication. These data to be provided the important information for evaluation of potential isolates for biocontrol.

show abstract

“…Surveys of EPNs and symbiotic bacteria in the national parks have resulted in several new records in Thailand [ 18 , 19 , 20 ]. In addition, at least two new species of EPNs were isolated from national parks in Vietnam [ 21 , 22 ]. The national parks in Thailand are defined as areas that contain vast natural resources of ecological importance or unique beauty, or that possess flora and fauna of special importance.…”

Section: Introductionmentioning

confidence: 99%

Entomopathogenic Nematodes and Their Symbiotic Bacteria from the National Parks of Thailand and Larvicidal Property of Symbiotic Bacteria against Aedes aegypti and Culex quinquefasciatus

Thanwisai

Muangpat

Meesil

et al. 2022

Biology

View full text Add to dashboard Cite

Entomopathogenic nematodes (EPNs) are insect parasitic nematodes of the genera Het-erorhabditis and Steinernema. These nematodes are symbiotically associated with the bacteria, Photorhabdus and Xenorhabdus, respectively. National parks in Thailand are a potentially rich resource for recovering native EPNs and their symbiotic bacteria. The objectives of this study are to isolate and identify EPNs and their bacterial flora from soil samples in four national parks in Thailand and to evaluate their efficacy for controlling mosquito larvae. Using a baiting method with a Galleria mellonella moth larvae and a White trap technique, 80 out of 840 soil samples (9.5%) from 168 field sites were positive for EPNs. Sequencing of an internal transcribed spacer resulted in the molecular identification of Heterorhabditis nematode isolates as H. indica, H. baujardi and Heterorhabditis SGmg3, while using 28S rDNA sequencing, Steinernema nematode species were identified as S. guang-dongense, S. surkhetense, S. minutum, S. longicaudum and one closely related to S. yirgalemense. For the symbiotic bacterial isolates, based on recA sequencing, the Photorhabdus spp. were identified as P. luminescens subsp. akhurstii, P. luminescens subsp. hainanensis and P. luminescens subsp. australis. Xenorhabdus isolates were identified as X. stockiae, X. indica, X. griffiniae, X. japonica and X. hominickii. Results of bioassays demonstrate that Photorhabdus isolates were effective on both Aedes aegypti and Culex quinquefasciatus. Therefore, we conclude that soil from Thailand’s national parks contain a high diversity of entomopathogenic nematodes and their symbiotic bacteria. Photorhabdus bacteria are larvicidal against culicine mosquitoes and may serve as effective biocontrol agents.

show abstract

A new entomopathogenic nematode, Steinernema robustispiculum n. sp. (Rhabditida: Steinernematidae), from Chumomray National Park in Vietnam

Cited by 21 publications

References 16 publications

Global distribution of entomopathogenic nematodes, Steinernema and Heterorhabditis

Global distribution of entomopathogenic nematodes, Steinernema and Heterorhabditis

The evaluation of multiplication capacity in Galleria of entomopathogenic nematode isolates from Vietnam

Entomopathogenic Nematodes and Their Symbiotic Bacteria from the National Parks of Thailand and Larvicidal Property of Symbiotic Bacteria against Aedes aegypti and Culex quinquefasciatus

Contact Info

Product

Resources

About