A contribution to the knowledge of nematophagous species of Verticillium

Gams, W.

doi:10.1007/bf01978003

Cited by 64 publications

(21 citation statements)

References 41 publications

(45 reference statements)

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“…The eggmasses colonized by fungi were preliminarily observed in open Petri dishes using an optical microscope (x 100) to check for conidiophore branching patterns, arrangement of conidia and dictyochlamydospore production. From these observations, species of egg parasitic fungi could be distinguished (Gams, 1988). Fungi field isolates were selected for detailed studies on morphology, growth and sporulation, but they were not checked for egg parasitism.…”

Section: Isolation and Identificationmentioning

confidence: 99%

“…Selected isolates of this fungus have shown potential as biological agent of nematodes in field trials (Atkins et al, 2003a;Kiewnick & Sikora, 2004). Lecanicillium psalliotae was originally described as the causal agent of a brown-spot disease in cultivated mushrooms, but it has subsequently been isolated from various other fungi and from a population of Globodera rostochiensis (Gams, 1988). It was reported for the first time in Cuba as an egg parasite of Meloidogyne spp.…”

Section: Selected Isolates For Characterization Studiesmentioning

confidence: 99%

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Cultural and morphological characterization of Pochonia chlamydosporia and Lecanicillium psalliotae isolated from Meloidogyne mayaguensis eggs in Brazil

Arévalo¹,

Hidalgo-Díaz²,

Martins³

et al. 2009

Trop. plant pathol.

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The root-knot nematode, Meloidogyne mayaguensis, causes serious economic loss to guava plantation in Brazil. Fungi associated with eggs of M. mayaguensis in Brazilian soil have not been studied yet, but this knowledge could form the basis for future field studies on biological control of this nematode. The egg parasitic fungi, Pochonia chlamydosporia var. chlamydosporia, P. chlamydosporia var. catenulata and Lecanicillium psalliotae, were isolated from M. mayaguensis eggs and analyzed based on their cultural and morphological characteristics. The optimum temperature for growth and spore production ranged between 24 and 28 o C for P. chlamydosporia isolates. For the isolate of L. psalliotae, the best growth was at 30 o C. In solid state fermentation, P. chlamydosporia isolates produced between 3.5 and 5.2 x 10 6 chlamydospores per g of colonized substrate, whereas L. psalliotae isolate produced 8.5 x 10 8 conidia per g of colonized substrate. Future studies are required to clarify the potential of these fungi as biological control agents of M. mayaguensis. Keywords: egg parasitic fungi, root-knot nematode, isolation, identification, optimum growing temperature. RESUMO Caracterização cultural e morfológica de Pochonia chlamydosporia e Lecanicillium psalliotae isolados de ovos de Meloidogyne mayaguensis no BrasilO nematóide das galhas, Meloidogyne mayaguensis, causa sérias perdas econômicas em plantações de goiaba no Brasil. Fungos parasitas de ovos de M. mayaguensis ainda não foram estudados no Brasil, mas essas informações podem servir de base para estudos futuros de controle biológico em campo. Os fungos parasitas de ovos, Pochonia chlamydosporia var. chlamydosporia, P. chlamydosporia var. catenulata e Lecanicillium psalliotae foram isolados em ovos de M. mayaguensis e analisados quanto às suas características morfológicas e culturais. Para os isolados de P. chlamydosporia a melhor temperatura para crescimento e esporulação variou entre 24 e 28 o C. Para o isolado de L. psalliotae, a melhor temperatura para crescimento foi 30 o C. Em estado sólido, os isolados de P. chlamydosporia produziram entre 3,5 e 5,2 x 10 6 chlamidosporos por g de substrato colonizado, enquanto que o isolado de L. psalliotae produziu 8,5 x 10 8 conídios por g de substrato colonizado. Há necessidade de estudos futuros para mostrar o potencial desses fungos como agentes de controle biológico de M. mayaguensis. Palavras-chave: fungos parasitas de ovos de nematóides, nematóide das galhas, isolamento, identificação, temperatura ótima de crescimento.

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Section: Isolation and Identificationmentioning

confidence: 99%

Section: Selected Isolates For Characterization Studiesmentioning

confidence: 99%

Cultural and morphological characterization of Pochonia chlamydosporia and Lecanicillium psalliotae isolated from Meloidogyne mayaguensis eggs in Brazil

Arévalo¹,

Hidalgo-Díaz²,

Martins³

et al. 2009

Trop. plant pathol.

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“…The genus Simplicillium presently consists of three species: Simplicillium lanosoniveum, Simplicillium obclavatum and Simplicillium lamellicola (Nonaka et al, 2013). Some studies reported that S. lamellicola was used to control ticks (Polar et al, 2005), Heterodera glycines Ichinohe cysts and Meloidogyne arenaria eggs (Gams, 1988).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of some entomopathogenic fungi against the fall webworm (Hyphantria cunea Durry, Lepidoptera: Arctidae)

Saruhan

Toksoz

Erper

2017

SJAFS

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Article history:Received date: 20.04.2017 Accepted date: 15.06.2017 Fall webworm (Hyphantria cunea Durry, Lepidoptera: Arctidae) is an important pest infecting about 600 hosts. It is harmful especially in hazelnut orchards in the Black Sea Region and is becoming epidemic occasionally. It may cause damage in mulberry, cherry, apple, poplar, and willow beside hazelnut in the region. Due to having a polyphagous feeding behavior and a high reproduction power; fall webworm can spread rapidly and make difficult to manage. In the region, currently, mostly chemical control is applied against this pest. Due to adverse effects of the chemical control to the environment and to living organisms, it is inevitable to develop other alternative control methods for this pest. In this study, the effects of some entomopathogenic fungi isolates obtained from Palomena prasina which is another pest in hazelnut production areas, on H. cunea in laboratory conditions. Overall, 1x10 8 conidia mL -1 of concentration obtained from 2 isolates of Simplicillium lamellicola (TR-01 and TR-02) and 4 isolates of Lecanicillium muscarium (TR-04, TR-05, TR-07 and TR-08) was used against 3 rd period larva of the H. cunea. The experiment was conducted with four replications, 10 larvae individuals in each. Mortality of H. cunea were reported daily, over 12 days. At the end of 12 th day, among the isolates of entomopathogenic fungi, the TR-05 isolate of the L. muscarium ranked the highest mortality by 93.9% rate. Effect of the other isolates of L. muscarium varied between 72.7% and 90.9%. The TR-01 isolate of the S. lamellicola showed effect of 57.6%, and the TR-02 isolate showed effect of 78.8% mortality. Effects of all the isolates used in the study were differed from the control (P<0.05). Based on LT 50 and LT 90 values, the most effective isolate was identified as TR-04 (5.64/day and 9.38/day, respectively). It can be concluded that, the isolates of L. muscarium was found quite effective and it could be a promising agent for controlling this pest in the field in the future.

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“…Link (Clavicipitales) have been classified in Verticillium sect. Prostrata by Gams (1971bGams ( , 1988. Although they might deserve generic rank with additional experimental data, the morphological recognition of the of ten prostrate and little-differentiated conidiophores is problematic.…”

Section: E Anamorphs Of the Hypocrealesmentioning

confidence: 98%

“…8e) and Verticillium sect. Prostrata (Gams 1971b(Gams , 1988, species of which are used to control aphids, thrips, white fly, cyst nematodes, and rust fungi. Species of Metarhizium Sorokin (teleomorphs unknown) with penicillate conidiophores and compact conidial columns are important in the control of coleoptera and leafhoppers (Tulloch 1976;Heale et al 1989;Curran et al 1994).…”

Section: E Anamorphs Of the Hypocrealesmentioning

confidence: 99%