Efeito fungitóxico de óleos essenciais sobre Colletotrichum gloeosporioides, isolado do maracujazeiro amarelo

Júnior, Ismail Teodoro Souza; Sales, Nilza Lima Pereira; Martins, Ernane Ronie

doi:10.5007/2175-7925.2009v22n3p77

Cited by 14 publications

(11 citation statements)

References 6 publications

(4 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Full inhibition of mycelia growth and spore germination have been demonstrated in Phakopsora pachyrhizi, Colletotrichum gloeosporioides, Didymella bryoniae, Cladosporium sp., Nigrospora sp. and others (Souza Junior et al, 2009;Mata et al, 2009;Medice et al, 2007;Fiori et al, 2000).…”

Section: Introductionmentioning

confidence: 90%

Control of Sclerotium rolfsii in peanut by using Cymbopogon martinii essential oil

Guerra¹,

Oliveira²,

Laranjeira³

et al. 2015

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

Essential oils of seven species were investigated in order to control peanut plants against white mold (Sclerotium rolfsii Sacc.). The assays were carried out by in vitro and in vivo assays. At first, fungitoxicity and suppression of oxalic acid diffusion (SOAD) bioassays were performed in order to evaluate the mycelial growth of fungus. Then, validation assays were carried out in greenhouse, involving inoculation of fungus in the seeds and further plant treatments with essential oil. Four isolates of S. rolfsii were tested in different oil concentrations. Cymbopogon martinii oil at 300 ppm inhibited the mycelia growth of S. rolfsii in 55% and also the number of sclerotia. In validation assay, we found that a single dose of C. martinii oil at 400 ppm reduced the rate of disease in 55%, confirming the in vitro assays. The follows traits: number of pods/plant, pod weight and harvest index increased in 57, 54, and 40%, respectively, in all C. martini oil treatments. These results demonstrate that C. martinii oil at low concentration may serve for new formulations in the treatment and prevention of white mold.

show abstract

Section: Introductionmentioning

confidence: 90%

Control of Sclerotium rolfsii in peanut by using Cymbopogon martinii essential oil

Guerra¹,

Oliveira²,

Laranjeira³

et al. 2015

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

show abstract

“…Species of this genus are characterized by aromatic essential oils with antimicrobial activity and compounds such as thymol and carvacrol. Souza Jr. et al 8 used the essential oil of L. sidoides to control Colletotrichum gloeosporioides isolated from the passion fruit tree, obtaining 100% inhibition of mycelial growth. However, Brazilian flora has not yet been sufficiently studied.…”

Section: Introductionmentioning

confidence: 99%

In vitro activity of essential oils of Lippia sidoides and Lippia gracilis and their major chemical components against Thielaviopsis paradoxa, causal agent of stem bleeding in coconut palms

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Studies realized by [21] obtained the total inhibition of the mycelial growth and of the germination of spores from Colletotrichum gloeosporioides utilizing the C. citratus essential oil from the concentration of 1 μL mL −1 .…”

Section: Discussionmentioning

confidence: 99%

Essential Oil of Cymbopogon citratus on the Control of the Curvularia Leaf Spot Disease on Maize

et al. 2017

View full text Add to dashboard Cite

The Curvularia Leaf Spot is becoming more common due to the culture expansion and the low resistance of the cultivated genotypes in tropical regions. Thus, the objective was to evaluate the fungitoxicity of the essential oil of Cymbopogon citratus upon the phytopathogen Curvularia lunata, causative agent of the Curvularia Leaf Spot. There was realized pathogenicity tests of C. lunata in maize plants, phytotoxicity of the essential oil of C. citratus and gas chromatography attached, germination tests of the conidia, and of in vitro inhibition of C. lunata. Also, there were realized tests aiming at verifying the phytopathogen control in vivo. In the pathogenicity tests, there were verified symptoms of the disease in all of the suspensions tested on plants. It was observed that the essential oil concentrations of 7.5 µL mL−1 to 50 µL mL−1 were phytotoxic. The majoritarian chemical components of the essential oil of C. citratus were Geranial (41.46%) and Neral (32.43%). The concentrations of 5 and 7.5 µL mL−1 inhibited 100% of conidia germination. None of the concentrations evaluated effectively inhibited C. lunata mycelial growth in in vitro tests. In the preventive control, the concentration of 7.5 µL mL−1 was sufficient for the reduction of the progress of the disease, however the curative control was not efficient on the tested dosages.

show abstract

Efeito fungitóxico de óleos essenciais sobre Colletotrichum gloeosporioides, isolado do maracujazeiro amarelo

Cited by 14 publications

References 6 publications

Control of Sclerotium rolfsii in peanut by using Cymbopogon martinii essential oil

Control of Sclerotium rolfsii in peanut by using Cymbopogon martinii essential oil

In vitro activity of essential oils of Lippia sidoides and Lippia gracilis and their major chemical components against Thielaviopsis paradoxa, causal agent of stem bleeding in coconut palms

Essential Oil of Cymbopogon citratus on the Control of the Curvularia Leaf Spot Disease on Maize

Contact Info

Product

Resources

About