Biological Control of Rhizoctonia Root Rot of Snap Bean with Binucleate Rhizoctonia-like Fungi

Cardoso, J. E.; Echandi, E.

doi:10.1094/pd-71-0167

Cited by 66 publications

(31 citation statements)

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“…Protection efficiency of the same non-pathogenic isolates varied against different isolates of pathogenic Rhizoctonia (AG 2-2 and AG 4). These results support the findings reported by others [Burpee and Goulty, 1984;Cardoso and Echandi, 1987a;Herr, 1988]. Protection efficiency induced by the BNR may vary due to some uncontrollable factors [Burpee and Goulty, 1984;Cardoso and Echandi, 1987a].…”

Section: Discussionsupporting

confidence: 92%

“…These results support the findings reported by others [Burpee and Goulty, 1984;Cardoso and Echandi, 1987a;Herr, 1988]. Protection efficiency induced by the BNR may vary due to some uncontrollable factors [Burpee and Goulty, 1984;Cardoso and Echandi, 1987a]. The present study has indicated that non-pathogenic BNR isolates protect seedlings against pathogenic strains of R. solani belonging to 1 Data were taken on 21 day-old seedlings grown in growth chamber (16 h photoperiod with daytime illuminance of approx.…”

Section: Discussionsupporting

confidence: 91%

“…The efficacy of binucleate Rhizoctonia to control other diseases caused by R. solani was also reported on creeping bentgrass [Burpee and Goulty, 1984], bean [Cardoso and Echandi, 1987a;1987b], potato [Escande and Echandi, 1991] and sugarbeet [Herr, 1988]. A field experinment using binucleate Rhizoctonia to protect cucumber from damping-off was also conducted, but effective protection was attained when the isolate used as biocontrol agent was combined with fungicide metalaxyl [Cubeta and Echandi, 1991].…”

Section: Introductionmentioning

confidence: 97%

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Biocontrol ofRhizoctonia damping-off of cucumber by non-pathogenic binucleateRhizoctonia

1996

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Three isolates of binucleate Rhizoctonia (BNR) were tested for biological control of damping-off of cucumber seedlings caused by Rhizoctonia solani AG 2-2 and AG 4. BNR isolates L2 (AG Ba) and W1 and W7 (AG A) provided protection of 58 to 71% against virulent isolate C4 of AG 4 and 64 to 75% protection against virulent isolate RH 65 of AG 2-2. Varying protection was provided to the seedlings by the BNR isolates against the virulent R. solani from the two AGs depending on their combination. The BNR isolates did not vary in providing protection to the seedling when tested against virulent C4 when both isolates were inoculated using three different methods, viz. in water agar, combination of water agar and soil and using soil alone. Protection of 58 to 71% was provided by the isolates when inoculation was done on the hypocotyl using water agar, 62.8 to 75% using the combination of water agar and soil, and 75 to 85% when inoculation of both isolates was done in soil. Pre-incubation of BNR W7 or delayed inoculation of C4 (from 0.5 day to longer duration) using the different methods provided an increased protection to the seedlings to give complete inhibition of damping-off disease. Simultaneous inoculation of both BNR W7 and C4 using the three methods failed to provide protection to the seedlings. Among the BNR isolates, BNR W7 showed plant growth promotion in terms of significant increase in plant height (P = 0.0I) and fresh weight (P = 0.05).

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 97%

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Biocontrol ofRhizoctonia damping-off of cucumber by non-pathogenic binucleateRhizoctonia

1996

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“…These protective isolates have usually been characterized as avirulent strains of multinucleate R. solani or mostly, binucleate Rhizoctonia (genus Ceratobasidium) isolates. A number of plant diseases caused by different AG of R. solani have been controlled at several scales by this type of biological agent (Castanho and Butler, 1978;Burpee and Goulty, 1984;Ichielevich-Auster et al, 1985;Cardoso and Echandi, 1987;Herr, 1988;Escande and Echandi, 1991;Harris et al, 1993Harris et al, , 1994. Also, protection against other fungal or even bacterial pathogens has been reported.…”

Section: Pathology and Hypovirulence In The Complexmentioning

confidence: 99%

Review. Biology and systematics of the form genus Rhizoctonia

García¹,

Onco

Susan

2006

Span. j. agric. res.

202

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Members of the form genus Rhizoctonia D.C. are considered as a complex mixture of filamentous fungi, having in common the possession of a non-spored imperfect state, usually referred to as the Rhizoctonia anamorph. The group includes several of the most devastating crop pathogens like Thanatephorus cucumeris (Frank) Donk (anamorph = Rhizoctonia solani Kühn), the majority of orchid mycorrhizal symbionts (mainly belonging to genus Ceratobasidium D.P. Rogers) and a collection of saprotrophic organisms of different systematic placement. The Rhizoctonia anamorph is characterized by several common features present among members of the entire Rhizoctonia species complex. Taxa from the group have been rearranged into several groups of higher fungi, including both Ascomycota and Basidiomycota, and split into several genera, employing criteria such as the analysis and ultrastructural comparison of septal apparatus. Until very recently, classification for some of the groups within the complex has been exclusively based on criteria such as hyphal anastomosis, since other types of diagnostic features are usually scarce in these fungi. Phytopathological studies in the complex have represented the major contingent of contributions in the group, especially in the case of R. solani. Some members of the complex have been reported to be protective isolates against pathogenic members of Rhizoctonia and some other fungal pathogens. This review focuses on the knowledge of several aspects of the species of Rhizcotonia s. lato, such as its current taxonomic placement, the biology and systematics of some groups of the complex, and a revision of the methodologies employed in studying it.Additional key words: Basidiomycetes, biocontrol, Ceratobasidiaceae, Ceratobasidium, fungal diseases, methodology, taxonomy, Thanatephorus. Resumen Biología y Sistemática del género forma RhizoctoniaLos miembros del género forma Rhizoctonia D.C. son considerados como un complejo de hongos filamentosos, presentando en común una fase asexual no productora de esporas, denominada anamorfo tipo Rhizoctonia. El grupo incluye algunos importantes patógenos como Thanatephorus cucumeris (Frank) Donk (anamorfo=Rhizoctonia solani Kühn), la mayoría de especies micorrícicas de orquídeas (principalmente del género Ceratobasidium D.P. Rogers), y algunos taxones de posición taxonómica variada. El anamorfo tipo Rhizoctonia es definido por una serie de características, presentes y comunes en todos los taxones del complejo. Los taxones del grupo han sido distribuidos entre varios grupos de hongos, incluyendo Ascomicetes y Basidiomicetes, y reubicados en varios géneros de ambas clases, empleando criterios de clasificación tales como el análisis y comparación de la ultraestructura del aparato septal. Habitualmente, la clasificación en algunos de los grupos del complejo ha estado basada en la aplicación de criterios tales como la anastomosis hifal, debido a que en este tipo de hongos es escasa la presencia de un número aceptable de caracteres diagnósticos. Los trabajos ...

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“…On the other hand, several authors have reported that hypovirulent binucleate Rhizoctonia (HBNR) effectively controlled Rhizoctonia diseases in several plants (Burpee and Goulty 1984;Cardoso and Echandi 1987a;Ichielevich-Auster et al 1985;Villajuan-Abgona et al 1996;Pascual et al 2000). HBNR is also reported to control diseases caused by other pathogens such as damping-off disease caused by Pythium ultimum (Harris et al 1993) and black-shank disease caused by Phytopththora parasitica var nicotianae (Cartwright and Spurr 1998).…”

Section: Introductionmentioning

confidence: 99%

Biological control of Fusarium wilt of tomato with hypovirulent binucleate Rhizoctonia in greenhouse conditions

2003

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Four isolates of hypovirulent binucleate Rhizoctonia (HBNR), G1, L2, W1, and W7 were used for control of Fusarium wilt of tomato (FWT) caused by Fusarium oxysporum f. sp. lycopersici (FOL). HBNR isolates could significantly reduce disease severity (foliar symptoms and discoloration inside the stem) among five experiments under single and double applications. Reduction of disease severity by HBNR isolates, however, differed depending on HBNR isolates and treatments. Of four isolates, isolate HBNR W7 could significantly and consistently reduce (P ϭ 0.05) disease severity. Application of HBNR isolates significantly reduced (P ϭ 0.01) the number of colonyforming units of FOL in stems and roots of tomato. Among the HBNR isolates, G1, W1, and W7 could significantly increase (P ϭ 0.05) fresh weight of the plants (stems and leaves). These results indicate that isolates of HBNR have a greater potential as biocontrol agents against FWT. This is the first report of biocontrol of FWT by HBNR under greenhouse conditions.

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Biological Control of Rhizoctonia Root Rot of Snap Bean with Binucleate Rhizoctonia-like Fungi

Cited by 66 publications

References 0 publications

Biocontrol ofRhizoctonia damping-off of cucumber by non-pathogenic binucleateRhizoctonia

Biocontrol ofRhizoctonia damping-off of cucumber by non-pathogenic binucleateRhizoctonia

Review. Biology and systematics of the form genus Rhizoctonia

Biological control of Fusarium wilt of tomato with hypovirulent binucleate Rhizoctonia in greenhouse conditions

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