Survival of the mycoparasite Coniothyrium minitans on flower petals of oilseed rape under field conditions in central China
The mycoparasite Coniothyrium minitans is an effective biocontrol agent of stem rot of oilseed rape ( Brassica napus) caused by Sclerotinia sclerotiorum. This study was to investigate survival of C. minitans on flower petals of oilseed rape under field conditions in central China using the mutant st...
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| Veröffentlicht in: | Biological control 2007-02, Vol.40 (2), p.179-186 |
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| creator | Yang, Long Miao, Hua Jun Li, Guo Qing Yin, Li Mei Huang, Hung-Chang |
| description | The mycoparasite
Coniothyrium minitans is an effective biocontrol agent of stem rot of oilseed rape (
Brassica napus) caused by
Sclerotinia sclerotiorum. This study was to investigate survival of
C. minitans on flower petals of oilseed rape under field conditions in central China using the mutant strain SV-5-2 which is tolerant to the fungicide vinclozolin, and the two bactericides benzylpenicillin sodium (BPS) and streptomycin sulfate (SS). Results showed that potato dextrose agar (PDA) amended with vinclozolin (500
μg
ml
−1), BPS (500
μg
ml
−1), and SS (500
μg
ml
−1) was suitable for detection of conidial germination and mycelial growth of
C. minitans strain SV-5-2. Results of the five field experiments (A–E) conducted in 2004 and 2005 showed that
C. minitans strain SV-5-2 applied to flower racemes of oilseed rape could be detected for five days in four experiments and three days in one experiment. The rate of survival of
C. minitans decreased with time and at the last sampling date, the survival rate was 17.3, 14.3, 35.0, 62.6, and 1.9% for experiments A, B, C, D, and E, respectively. Moreover, survival of
C. minitans was affected by weather conditions. Relatively, high rates of survival of
C. minitans were observed under sunny weather in the experiments C and D, implying that conidia of
C. minitans are tolerant to sunlight irradiation for a period of at least five days in the experiment C and three days in the experiment D. Low survival rates of
C. minitans were observed under light rain weather in the experiment A, and heavy rain weather in the experiments B and E. The low recovery rate of
C. minitans under rainy conditions suggests a possibility of rain wash of the inoculum applied to the florets. Methods for improving efficacy of
C. minitans in the field are discussed. |
| doi_str_mv | 10.1016/j.biocontrol.2006.10.002 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_19602930</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S104996440600274X</els_id><sourcerecordid>19602930</sourcerecordid><originalsourceid>FETCH-LOGICAL-c373t-5717a9cb74952cd6e44b836d4dcbda03f6ff0d9ef3d1425ebd6b390f8fc36d713</originalsourceid><addsrcrecordid>eNqFkMFu1DAQhqMKpJbCM-ATt2zHiTdZH2EFLVKlHkrPlmOP2VkldrCdRSteHkeLxLEnW57v88z8VcU4bDjw7u64GSiY4HMM46YB6MrzBqC5qm44SKgbzps3613IWnZCXFfvUjoCcC56uKn-PC_xRCc9suBYPiCbzibMOupEGdk-eAr5cI60TGwiT1n7xIJnbgy_MbIZsx7TqgYaE6JlUc_IFm9L0RGOlpXRLGUKxSPPDJZBS7P9gbx-X711RccP_87b6uXb1x_7h_rx6f77_vNjbdq-zfW2572WZuiF3DbGdijEsGs7K6wZrIbWdc6Blehay0WzxcF2QyvB7ZwpVM_b2-rT5d85hl8LpqwmSgbHUXsMS1JcdtDIFgq4u4AmhpQiOjVHmnQ8Kw5qTVsd1f-01Zr2WilpF_XjRXU6KP0zUlIvzw3wFqAXwJtdIb5cCCyrngijSobQG7QU0WRlA73e5i-ok5q9</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>19602930</pqid></control><display><type>article</type><title>Survival of the mycoparasite Coniothyrium minitans on flower petals of oilseed rape under field conditions in central China</title><source>Access via ScienceDirect (Elsevier)</source><creator>Yang, Long ; Miao, Hua Jun ; Li, Guo Qing ; Yin, Li Mei ; Huang, Hung-Chang</creator><creatorcontrib>Yang, Long ; Miao, Hua Jun ; Li, Guo Qing ; Yin, Li Mei ; Huang, Hung-Chang</creatorcontrib><description>The mycoparasite
Coniothyrium minitans is an effective biocontrol agent of stem rot of oilseed rape (
Brassica napus) caused by
Sclerotinia sclerotiorum. This study was to investigate survival of
C. minitans on flower petals of oilseed rape under field conditions in central China using the mutant strain SV-5-2 which is tolerant to the fungicide vinclozolin, and the two bactericides benzylpenicillin sodium (BPS) and streptomycin sulfate (SS). Results showed that potato dextrose agar (PDA) amended with vinclozolin (500
μg
ml
−1), BPS (500
μg
ml
−1), and SS (500
μg
ml
−1) was suitable for detection of conidial germination and mycelial growth of
C. minitans strain SV-5-2. Results of the five field experiments (A–E) conducted in 2004 and 2005 showed that
C. minitans strain SV-5-2 applied to flower racemes of oilseed rape could be detected for five days in four experiments and three days in one experiment. The rate of survival of
C. minitans decreased with time and at the last sampling date, the survival rate was 17.3, 14.3, 35.0, 62.6, and 1.9% for experiments A, B, C, D, and E, respectively. Moreover, survival of
C. minitans was affected by weather conditions. Relatively, high rates of survival of
C. minitans were observed under sunny weather in the experiments C and D, implying that conidia of
C. minitans are tolerant to sunlight irradiation for a period of at least five days in the experiment C and three days in the experiment D. Low survival rates of
C. minitans were observed under light rain weather in the experiment A, and heavy rain weather in the experiments B and E. The low recovery rate of
C. minitans under rainy conditions suggests a possibility of rain wash of the inoculum applied to the florets. Methods for improving efficacy of
C. minitans in the field are discussed.</description><identifier>ISSN: 1049-9644</identifier><identifier>EISSN: 1090-2112</identifier><identifier>DOI: 10.1016/j.biocontrol.2006.10.002</identifier><language>eng</language><publisher>Elsevier Inc</publisher><subject>Biological control ; biological control agents ; Brassica napus ; Coniothyrium minitans ; flowers ; fungicide resistance ; mortality ; mycelial growth ; mycoparasites ; Oilseed rape ; plant pathogenic fungi ; Sclerotinia sclerotiorum ; Solanum tuberosum ; spore germination ; stem rot ; Survival ; Vinclozolin ; weather</subject><ispartof>Biological control, 2007-02, Vol.40 (2), p.179-186</ispartof><rights>2006 Elsevier Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c373t-5717a9cb74952cd6e44b836d4dcbda03f6ff0d9ef3d1425ebd6b390f8fc36d713</citedby><cites>FETCH-LOGICAL-c373t-5717a9cb74952cd6e44b836d4dcbda03f6ff0d9ef3d1425ebd6b390f8fc36d713</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.biocontrol.2006.10.002$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Yang, Long</creatorcontrib><creatorcontrib>Miao, Hua Jun</creatorcontrib><creatorcontrib>Li, Guo Qing</creatorcontrib><creatorcontrib>Yin, Li Mei</creatorcontrib><creatorcontrib>Huang, Hung-Chang</creatorcontrib><title>Survival of the mycoparasite Coniothyrium minitans on flower petals of oilseed rape under field conditions in central China</title><title>Biological control</title><description>The mycoparasite
Coniothyrium minitans is an effective biocontrol agent of stem rot of oilseed rape (
Brassica napus) caused by
Sclerotinia sclerotiorum. This study was to investigate survival of
C. minitans on flower petals of oilseed rape under field conditions in central China using the mutant strain SV-5-2 which is tolerant to the fungicide vinclozolin, and the two bactericides benzylpenicillin sodium (BPS) and streptomycin sulfate (SS). Results showed that potato dextrose agar (PDA) amended with vinclozolin (500
μg
ml
−1), BPS (500
μg
ml
−1), and SS (500
μg
ml
−1) was suitable for detection of conidial germination and mycelial growth of
C. minitans strain SV-5-2. Results of the five field experiments (A–E) conducted in 2004 and 2005 showed that
C. minitans strain SV-5-2 applied to flower racemes of oilseed rape could be detected for five days in four experiments and three days in one experiment. The rate of survival of
C. minitans decreased with time and at the last sampling date, the survival rate was 17.3, 14.3, 35.0, 62.6, and 1.9% for experiments A, B, C, D, and E, respectively. Moreover, survival of
C. minitans was affected by weather conditions. Relatively, high rates of survival of
C. minitans were observed under sunny weather in the experiments C and D, implying that conidia of
C. minitans are tolerant to sunlight irradiation for a period of at least five days in the experiment C and three days in the experiment D. Low survival rates of
C. minitans were observed under light rain weather in the experiment A, and heavy rain weather in the experiments B and E. The low recovery rate of
C. minitans under rainy conditions suggests a possibility of rain wash of the inoculum applied to the florets. Methods for improving efficacy of
C. minitans in the field are discussed.</description><subject>Biological control</subject><subject>biological control agents</subject><subject>Brassica napus</subject><subject>Coniothyrium minitans</subject><subject>flowers</subject><subject>fungicide resistance</subject><subject>mortality</subject><subject>mycelial growth</subject><subject>mycoparasites</subject><subject>Oilseed rape</subject><subject>plant pathogenic fungi</subject><subject>Sclerotinia sclerotiorum</subject><subject>Solanum tuberosum</subject><subject>spore germination</subject><subject>stem rot</subject><subject>Survival</subject><subject>Vinclozolin</subject><subject>weather</subject><issn>1049-9644</issn><issn>1090-2112</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqFkMFu1DAQhqMKpJbCM-ATt2zHiTdZH2EFLVKlHkrPlmOP2VkldrCdRSteHkeLxLEnW57v88z8VcU4bDjw7u64GSiY4HMM46YB6MrzBqC5qm44SKgbzps3613IWnZCXFfvUjoCcC56uKn-PC_xRCc9suBYPiCbzibMOupEGdk-eAr5cI60TGwiT1n7xIJnbgy_MbIZsx7TqgYaE6JlUc_IFm9L0RGOlpXRLGUKxSPPDJZBS7P9gbx-X711RccP_87b6uXb1x_7h_rx6f77_vNjbdq-zfW2572WZuiF3DbGdijEsGs7K6wZrIbWdc6Blehay0WzxcF2QyvB7ZwpVM_b2-rT5d85hl8LpqwmSgbHUXsMS1JcdtDIFgq4u4AmhpQiOjVHmnQ8Kw5qTVsd1f-01Zr2WilpF_XjRXU6KP0zUlIvzw3wFqAXwJtdIb5cCCyrngijSobQG7QU0WRlA73e5i-ok5q9</recordid><startdate>20070201</startdate><enddate>20070201</enddate><creator>Yang, Long</creator><creator>Miao, Hua Jun</creator><creator>Li, Guo Qing</creator><creator>Yin, Li Mei</creator><creator>Huang, Hung-Chang</creator><general>Elsevier Inc</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20070201</creationdate><title>Survival of the mycoparasite Coniothyrium minitans on flower petals of oilseed rape under field conditions in central China</title><author>Yang, Long ; Miao, Hua Jun ; Li, Guo Qing ; Yin, Li Mei ; Huang, Hung-Chang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c373t-5717a9cb74952cd6e44b836d4dcbda03f6ff0d9ef3d1425ebd6b390f8fc36d713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Biological control</topic><topic>biological control agents</topic><topic>Brassica napus</topic><topic>Coniothyrium minitans</topic><topic>flowers</topic><topic>fungicide resistance</topic><topic>mortality</topic><topic>mycelial growth</topic><topic>mycoparasites</topic><topic>Oilseed rape</topic><topic>plant pathogenic fungi</topic><topic>Sclerotinia sclerotiorum</topic><topic>Solanum tuberosum</topic><topic>spore germination</topic><topic>stem rot</topic><topic>Survival</topic><topic>Vinclozolin</topic><topic>weather</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Long</creatorcontrib><creatorcontrib>Miao, Hua Jun</creatorcontrib><creatorcontrib>Li, Guo Qing</creatorcontrib><creatorcontrib>Yin, Li Mei</creatorcontrib><creatorcontrib>Huang, Hung-Chang</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Biological control</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Long</au><au>Miao, Hua Jun</au><au>Li, Guo Qing</au><au>Yin, Li Mei</au><au>Huang, Hung-Chang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Survival of the mycoparasite Coniothyrium minitans on flower petals of oilseed rape under field conditions in central China</atitle><jtitle>Biological control</jtitle><date>2007-02-01</date><risdate>2007</risdate><volume>40</volume><issue>2</issue><spage>179</spage><epage>186</epage><pages>179-186</pages><issn>1049-9644</issn><eissn>1090-2112</eissn><abstract>The mycoparasite
Coniothyrium minitans is an effective biocontrol agent of stem rot of oilseed rape (
Brassica napus) caused by
Sclerotinia sclerotiorum. This study was to investigate survival of
C. minitans on flower petals of oilseed rape under field conditions in central China using the mutant strain SV-5-2 which is tolerant to the fungicide vinclozolin, and the two bactericides benzylpenicillin sodium (BPS) and streptomycin sulfate (SS). Results showed that potato dextrose agar (PDA) amended with vinclozolin (500
μg
ml
−1), BPS (500
μg
ml
−1), and SS (500
μg
ml
−1) was suitable for detection of conidial germination and mycelial growth of
C. minitans strain SV-5-2. Results of the five field experiments (A–E) conducted in 2004 and 2005 showed that
C. minitans strain SV-5-2 applied to flower racemes of oilseed rape could be detected for five days in four experiments and three days in one experiment. The rate of survival of
C. minitans decreased with time and at the last sampling date, the survival rate was 17.3, 14.3, 35.0, 62.6, and 1.9% for experiments A, B, C, D, and E, respectively. Moreover, survival of
C. minitans was affected by weather conditions. Relatively, high rates of survival of
C. minitans were observed under sunny weather in the experiments C and D, implying that conidia of
C. minitans are tolerant to sunlight irradiation for a period of at least five days in the experiment C and three days in the experiment D. Low survival rates of
C. minitans were observed under light rain weather in the experiment A, and heavy rain weather in the experiments B and E. The low recovery rate of
C. minitans under rainy conditions suggests a possibility of rain wash of the inoculum applied to the florets. Methods for improving efficacy of
C. minitans in the field are discussed.</abstract><pub>Elsevier Inc</pub><doi>10.1016/j.biocontrol.2006.10.002</doi><tpages>8</tpages></addata></record> |
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| ispartof | Biological control, 2007-02, Vol.40 (2), p.179-186 |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Biological control biological control agents Brassica napus Coniothyrium minitans flowers fungicide resistance mortality mycelial growth mycoparasites Oilseed rape plant pathogenic fungi Sclerotinia sclerotiorum Solanum tuberosum spore germination stem rot Survival Vinclozolin weather |
| title | Survival of the mycoparasite Coniothyrium minitans on flower petals of oilseed rape under field conditions in central China |
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