Ocorrência endofítica de Lasiodiplodia theobromae em tecidos de cajueiro e sua transmissão por propágulos

Cardoso, J. E.; Bezerra, Marlos Alves; Viana, F. M. P.; Sousa, Tomil Ricardo Maia de; Cysne, Alex Queiroz; Farias, Fábio Costa

doi:10.1590/s0100-54052009000400002

Cited by 14 publications

(8 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This tendency points out to the previous hypothesis that the pathogen is first introduced via randomly infected planting materials. Lasiodiplodia theobromae has been reported as an endophytic fungus (Baird and Carling 1998;Cilliers 1993;Mohali et al 2005;Mullen et al 1991;Rubini et al 2005) or as latent pathogen (Freire et al 2004;Khanzada et al 2004;Correa and Costa 2005;Cardoso et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Spatial-temporal Analysis of Gummosis in Three Cashew Clones at Northeastern Brazil

Cysne

Cardoso

Maia

et al. 2010

Journal of Phytopathology

View full text Add to dashboard Cite

The cashew gummosis caused by the fungus Lasiodiplodia theobromae is one of the most important disease of cashew in the northeast of Brazil. The lack of studies about method of early detection, pathogen dissemination, host predisposition, mechanisms of attack and defence and efficient control measures assures this disease as a limiting factor as to growing of cashew under semi-arid conditions. Therefore, the characterization of spatial patterns of gummosis development under commercial orchards may provide important insights into the mechanisms involving in dissemination and disease progress of this disease, as well as in the understanding of dynamic of host, pathogen and environmental interactions for this pathossystem. This work aimed to characterize gummosis temporal and special dynamics in three commercial orchards of cashew clones of cashew with different levels of susceptibility by studying the special arrangement of diseased plants. Disease incidence and severity, quantified determined by a descriptive scale in clones BRS 226 (resistant), Embrapa 51 (slightly resistant) and Faga 11 (susceptible) in a commercial orchard located in Pio IX district (Piaui state, Brazil), were monitored and mapped. Data were collected within three blocks of 90 plants for each clone. Indices of dispersion were estimated to study the spatial dynamic. The dynamics and structure of gummosis foci were also analysed. As expected, data showed different degrees of gummosis incidence and severity for the three clones. Even under different levels of disease, a random dispersion pattern model of dispersion could be observed at the beginning of epidemic for all clones. However, as disease develops, a clustered model is likely to fit. The increase in disease incidence resulted from the increasing in both focus number and size.

show abstract

Section: Discussionmentioning

confidence: 99%

Spatial-temporal Analysis of Gummosis in Three Cashew Clones at Northeastern Brazil

Cysne

Cardoso

Maia

et al. 2010

Journal of Phytopathology

View full text Add to dashboard Cite

show abstract

“…The results of AUDPC indicate that the fungus was not able to produce symptoms of the disease, as in a study by Cardoso (2009), on the transmission of L. theobromae via cashew propagule, asymptomatic infection was observed owing to latent action of the fungus; only after the seedlings went to the field under temperature stress, it was possible to observe the symptoms of the disease. This characteristic is important for seedling production because it is necessary to have adequate control of the pathogen so that it is not disseminated to the field.…”

Section: Discussionmentioning

confidence: 80%

“…There were no significant differences among treatments in the AUDPC of Lasiodiplodia black rot (Lasiodiplodia theobromae) (Table 1). Cardoso et al (2009) working with Lasiodiplodia sp. in a greenhouse reported that the infection process was not efficient and that factors generating stresses such as water deficit and/or thermal amplitude could contribute to the disease progress.…”

Section: Area Under the Disease Progress Curve (Audpc)mentioning

confidence: 99%

Bioproducts and Homeopathy in Lasiodiplodia Rot (Lasiodiplodia sp.) Control and Development of Passion Fruit Seedlings

Trento¹,

Bonaldo²,

Wobeto³

et al. 2022

JAS

View full text Add to dashboard Cite

The aim of this study was to evaluate the effects of homeopathic medicine Calcarea carbonica 12CH and bioproducts: filtrates of saprobic fungi from Amazon, green propolis nosode 06CH, filtrate of Pichia sp., green propolis extract, Bacillus subtilis; to control Lasiodiplodia (Lasiodiplodia sp.) and development of passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Degener). The experiment was carried out in a completely randomized design with 10 treatments in a parcel divided in time. Each plot consisted of 5 plants for analysis. Data were subjected to analysis of variance and when significant compared by Scott-Knott test (p> 0.05). Variables related to plant growth and the area under the disease progress curve (AUDPC) were evaluated. Assessments were performed at 67, 74 and 82 days after transplantation. There was no reduction in AUDPC for treatments compared to control. As for plant height (cm), the best treatments were Pichia sp. and Gonytrichum sp. with an increase in relation to control of 29.70% and 18.24%, respectively, and increased leaf area (cm2) by 27.42% and 19.85%, respectively. B. subtilis, Pichia sp. and Gonytrichum sp., increased total biomass by 42.31%, 32.82% and 21.44%, respectively. The filtrates application from Pichia sp., Filtrate from Gonytrichum sp., C. carbonica 12CH and B. subtilis provided better performance in the development of passion fruit plants with an increase in the main morphological attributes. The results show that the use of bio products improves the development of seedlings, especially the use of yeast and saprophytic fungi by controlling the biochemical and physiological processes of plants during development.

show abstract

“…O fungo L. theobromae é um patógeno que causa danos em espécies como cacaueiro (FUKU-DA et al, 2008), cajueiro (CARDOSO et al, 2009), pinhão-manso (PEREIRA et al, 2009) e mangueira (LINS et al, 2010). No mangostanzeiro, o ataque de L. theobromae parece estar relacionado com o estresse da planta em determinada fase do seu desenvolvimento, o qual pode estar associado a um fator ou a um conjunto de fatores característicos de uma dada área, incluindo aí as práticas culturais utilizadas.…”

Section: Resultsunclassified

“…No mangostanzeiro, o ataque de L. theobromae parece estar relacionado com o estresse da planta em determinada fase do seu desenvolvimento, o qual pode estar associado a um fator ou a um conjunto de fatores característicos de uma dada área, incluindo aí as práticas culturais utilizadas. Cardoso et al (2009) descrevem detalhadamente a resinose do cajueiro causada por L. theobromae, principal doença dessa cultura no semiárido nordestino que ocorre comumente em plantas submetidas a estresse, confirmando as presentes observações sobre o DM.…”

Section: Resultsunclassified

Etiologia do declínio de mangostanzeiros no sul da Bahia

Paim¹,

Silveira²,

Bezerra³

et al. 2012

Rev. Bras. Frutic.

View full text Add to dashboard Cite

CÉLIO KERSUL DO SACRAMENTO 6 RESUMO -O declínio do mangostanzeiro (Garcinia mangostana L.) no litoral sul do Estado da Bahia é hoje o principal problema da cultura, sendo caracterizado por sintomas de murcha, amarelecimento, seca e queda de folhas. Este trabalho teve como objetivo acompanhar a evolução da sintomatologia da doença, isolar e identificar os potenciais patógenos causadores do declínio do mangostanzeiro. A doença começa com a necrose das radículas, a qual atinge as raízes secundárias, primárias e progride até à base do tronco que desenvolve lesões necróticas extensas. Os sintomas secundários são clorose, murcha e queda das folhas. ETIOLOGY OF THE DECLINE OF MANGOSTEEN IN THE SOUTHERN BAHIAABSTRACT -The decline of mangosteen (Garcinia mangostana L.) in the southern coast of the state of Bahia is today the main problem of the culture, being characterized by symptoms of wilting, yellowing, blight and defoliation. This study was aimed to follow the evolution of the symptoms of the disease, isolate and identify the possible pathogen of mangosteen decline. The disease begins in the roots and progresses toward the canopy, leading to plant death. Samples of infected tissue from diseased plants were taken to laboratory where the following fungal species were isolated and identified: Lasiodiplodia theobromae, L. parva, Mycoleptodiscus sp., Rhizopus sp., Stilbella sp., Aspergillus sp. and Trichoderma spp. Only Lasiodiplodia theobromae and L. parva were pathogenic to fragments of roots and stems in vitro and mangosteen seedlings in glass house, being the first species the more virulent. The taxonomy of the genus Lasiodiplodia and some conditions that influence the development of the disease in the field were analyzed.

show abstract

Ocorrência endofítica de Lasiodiplodia theobromae em tecidos de cajueiro e sua transmissão por propágulos

Cited by 14 publications

References 11 publications

Spatial-temporal Analysis of Gummosis in Three Cashew Clones at Northeastern Brazil

Spatial-temporal Analysis of Gummosis in Three Cashew Clones at Northeastern Brazil

Bioproducts and Homeopathy in Lasiodiplodia Rot (Lasiodiplodia sp.) Control and Development of Passion Fruit Seedlings

Etiologia do declínio de mangostanzeiros no sul da Bahia

Contact Info

Product

Resources

About