Effect of osmotic potential on the germination of conidia and colony growth of Verticillium lecanii
The effects of osmotic potential on the germination of conidia and the radial extension of colonies of three isolates of Verticillium lecanii were studied. Both germination and colony extension decreased with lower (more negative) osmotic potential. Germination was most rapid at −0·2 MPa and severel...
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| Veröffentlicht in: | Mycological research 1994-04, Vol.98 (4), p.384-388 |
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| creator | Chandler, D. Heale, J.B. Gillespie, A.T. |
| description | The effects of osmotic potential on the germination of conidia and the radial extension of colonies of three isolates of
Verticillium lecanii were studied. Both germination and colony extension decreased with lower (more negative) osmotic potential. Germination was most rapid at −0·2 MPa and severely restricted below −4·2 MPa. Intra-specific differences were observed in germination and only one isolate of
V. lecanii (isolate 1.72) achieved a high level of germination (95% in under 12 h) at −2·8 MPa. The extension rate of colonies was also dependent on osmotic potential; the lower limit for growth was −12·3 MPa, with extension severely restricted below −7·0 MPa. When
V. lecanii is used as a biological control agent, it is desirable that conidia germinate as quickly as possible after application. Thus intra-specific differences in response to water potential should be considered during the selection of isolates for application in glasshouses. |
| doi_str_mv | 10.1016/S0953-7562(09)81193-3 |
| format | Article |
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Verticillium lecanii were studied. Both germination and colony extension decreased with lower (more negative) osmotic potential. Germination was most rapid at −0·2 MPa and severely restricted below −4·2 MPa. Intra-specific differences were observed in germination and only one isolate of
V. lecanii (isolate 1.72) achieved a high level of germination (95% in under 12 h) at −2·8 MPa. The extension rate of colonies was also dependent on osmotic potential; the lower limit for growth was −12·3 MPa, with extension severely restricted below −7·0 MPa. When
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Verticillium lecanii were studied. Both germination and colony extension decreased with lower (more negative) osmotic potential. Germination was most rapid at −0·2 MPa and severely restricted below −4·2 MPa. Intra-specific differences were observed in germination and only one isolate of
V. lecanii (isolate 1.72) achieved a high level of germination (95% in under 12 h) at −2·8 MPa. The extension rate of colonies was also dependent on osmotic potential; the lower limit for growth was −12·3 MPa, with extension severely restricted below −7·0 MPa. When
V. lecanii is used as a biological control agent, it is desirable that conidia germinate as quickly as possible after application. Thus intra-specific differences in response to water potential should be considered during the selection of isolates for application in glasshouses.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Biological control</subject><subject>Control</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Invertebrates</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Protozoa. Invertebrates</subject><subject>Verticillium lecanii</subject><issn>0953-7562</issn><issn>1469-8102</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><recordid>eNqFkE1rFTEUhoMoeK3-BCGLIrqYmjO5yUxWIqW2hYILbbchk4_2lExyTXIr_ffO9JZuXSXhPOe8Jw8hH4GdAAP59RdTgneDkP1npr6MAIp3_BXZwFaqbgTWvyabF-QteVfrPWPAAfiG2LMQvG00B5rrnBtausvNp4Ym0pxou_P01pcZk2m4vBfO5oQODTXJLfeY0yO9Lflvu1uLN74sMzBG3M80emsS4nvyJphY_Yfn84hc_zj7fXrRXf08vzz9ftXZLeets9A7kEYZMcp-kmJd2TnZ93IKjqmJKzE64SYRhgATn6ZxsIo7I50YA5MDPyKfDnN3Jf_Z-9r0jNX6GE3yeV81SLkFGFdQHEBbcq3FB70rOJvyqIHpVal-UqpXX5op_aRU86Xv-DnAVGtiKCZZrC_N254JGNiCfTtgfvnsA_qiq0WfrHdYFtfaZfxP0D_0iIu4</recordid><startdate>19940401</startdate><enddate>19940401</enddate><creator>Chandler, D.</creator><creator>Heale, J.B.</creator><creator>Gillespie, A.T.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>M7N</scope></search><sort><creationdate>19940401</creationdate><title>Effect of osmotic potential on the germination of conidia and colony growth of Verticillium lecanii</title><author>Chandler, D. ; Heale, J.B. ; Gillespie, A.T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c433t-c12d16a9a5862b650953dd6226bfd09b3958d5db5f7f1b3bb87c93da6d58f0673</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>Biological and medical sciences</topic><topic>Biological control</topic><topic>Control</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Invertebrates</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protozoa. Invertebrates</topic><topic>Verticillium lecanii</topic><toplevel>online_resources</toplevel><creatorcontrib>Chandler, D.</creatorcontrib><creatorcontrib>Heale, J.B.</creatorcontrib><creatorcontrib>Gillespie, A.T.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><jtitle>Mycological research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chandler, D.</au><au>Heale, J.B.</au><au>Gillespie, A.T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of osmotic potential on the germination of conidia and colony growth of Verticillium lecanii</atitle><jtitle>Mycological research</jtitle><date>1994-04-01</date><risdate>1994</risdate><volume>98</volume><issue>4</issue><spage>384</spage><epage>388</epage><pages>384-388</pages><issn>0953-7562</issn><eissn>1469-8102</eissn><abstract>The effects of osmotic potential on the germination of conidia and the radial extension of colonies of three isolates of
Verticillium lecanii were studied. Both germination and colony extension decreased with lower (more negative) osmotic potential. Germination was most rapid at −0·2 MPa and severely restricted below −4·2 MPa. Intra-specific differences were observed in germination and only one isolate of
V. lecanii (isolate 1.72) achieved a high level of germination (95% in under 12 h) at −2·8 MPa. The extension rate of colonies was also dependent on osmotic potential; the lower limit for growth was −12·3 MPa, with extension severely restricted below −7·0 MPa. When
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| ispartof | Mycological research, 1994-04, Vol.98 (4), p.384-388 |
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| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Agronomy. Soil science and plant productions Biological and medical sciences Biological control Control Fundamental and applied biological sciences. Psychology Invertebrates Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates Verticillium lecanii |
| title | Effect of osmotic potential on the germination of conidia and colony growth of Verticillium lecanii |
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