Development of Botrytis cinerea Pers. ex Fr. on leaves of common poinsettia (Euphorbia pulcherrima Willd.)
The development of Botrytis cinerea was assessed on six cultivars of common poinsettia, differing in the colour of bracts, and being in great demand among buyers of these ornamental plants. Resistance to this pathogen differed in the investigated poinsettias. Cultivar 'Malibu Red' (red bra...
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| Format: | Article |
| Language: | English |
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Polish Botanical Society
2012-12-01
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| Series: | Acta Agrobotanica |
| Subjects: | |
| Online Access: | https://pbsociety.org.pl/journals/index.php/aa/article/view/1925 |
| _version_ | 1818996330716987392 |
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| author | Beata Kułek Jolanta Floryszak-Wieczorek |
| author_facet | Beata Kułek Jolanta Floryszak-Wieczorek |
| author_sort | Beata Kułek |
| collection | DOAJ |
| description | The development of Botrytis cinerea was assessed on six cultivars of common poinsettia, differing in the colour of bracts, and being in great demand among buyers of these ornamental plants. Resistance to this pathogen differed in the investigated poinsettias. Cultivar 'Malibu Red' (red bracts) turned out to be most susceptible, while cv. 'Marblestar' (cream-pink) and cv. 'Coco White' (white) - relatively resistant to this fungus. After application of various inoculation methods (leaf discs, cut off leaves, whole plants) the differences in resistance to B. cinerea were confirmed for two extreme cultivars - susceptible ('Malibu Red') and resistant ('Coco White'), which indicated genetic background of this polymorphism. The rate of disease development on poinsettia leaves was affected by the amount of spores used for inoculation (optimum density of 3.5·105 B. cinerea conidia / ml suspension) and the addition of stimulants (0.1 M glucose with 0.05 M KH2PO4), which facilitated germination and infection of the host tissue. The inoculated poinsettia leaves showed high stability of plasma membranes. In the susceptible cultivar, in spite of the development of necrotic spots, a significant increase in the membrane damage index (by 13%) was found only on day 7 of the disease development. |
| first_indexed | 2024-12-20T21:28:02Z |
| format | Article |
| id | doaj.art-186a43fce131497fbab82b9ca85d0062 |
| institution | Directory Open Access Journal |
| issn | 2300-357X |
| language | English |
| last_indexed | 2024-12-20T21:28:02Z |
| publishDate | 2012-12-01 |
| publisher | Polish Botanical Society |
| record_format | Article |
| series | Acta Agrobotanica |
| spelling | doaj.art-186a43fce131497fbab82b9ca85d00622022-12-21T19:26:06ZengPolish Botanical SocietyActa Agrobotanica2300-357X2012-12-0158222523610.5586/aa.2005.0491537Development of Botrytis cinerea Pers. ex Fr. on leaves of common poinsettia (Euphorbia pulcherrima Willd.)Beata Kułek0Jolanta Floryszak-Wieczorek1August Cieszkowski Agricultural UniversityAugust Cieszkowski Agricultural UniversityThe development of Botrytis cinerea was assessed on six cultivars of common poinsettia, differing in the colour of bracts, and being in great demand among buyers of these ornamental plants. Resistance to this pathogen differed in the investigated poinsettias. Cultivar 'Malibu Red' (red bracts) turned out to be most susceptible, while cv. 'Marblestar' (cream-pink) and cv. 'Coco White' (white) - relatively resistant to this fungus. After application of various inoculation methods (leaf discs, cut off leaves, whole plants) the differences in resistance to B. cinerea were confirmed for two extreme cultivars - susceptible ('Malibu Red') and resistant ('Coco White'), which indicated genetic background of this polymorphism. The rate of disease development on poinsettia leaves was affected by the amount of spores used for inoculation (optimum density of 3.5·105 B. cinerea conidia / ml suspension) and the addition of stimulants (0.1 M glucose with 0.05 M KH2PO4), which facilitated germination and infection of the host tissue. The inoculated poinsettia leaves showed high stability of plasma membranes. In the susceptible cultivar, in spite of the development of necrotic spots, a significant increase in the membrane damage index (by 13%) was found only on day 7 of the disease development.https://pbsociety.org.pl/journals/index.php/aa/article/view/1925common poinsettiaEuphorbia pulcherrimaBotrytis cinerea developmentgrey mouldelectrolyte leakage |
| spellingShingle | Beata Kułek Jolanta Floryszak-Wieczorek Development of Botrytis cinerea Pers. ex Fr. on leaves of common poinsettia (Euphorbia pulcherrima Willd.) Acta Agrobotanica common poinsettia Euphorbia pulcherrima Botrytis cinerea development grey mould electrolyte leakage |
| title | Development of Botrytis cinerea Pers. ex Fr. on leaves of common poinsettia (Euphorbia pulcherrima Willd.) |
| title_full | Development of Botrytis cinerea Pers. ex Fr. on leaves of common poinsettia (Euphorbia pulcherrima Willd.) |
| title_fullStr | Development of Botrytis cinerea Pers. ex Fr. on leaves of common poinsettia (Euphorbia pulcherrima Willd.) |
| title_full_unstemmed | Development of Botrytis cinerea Pers. ex Fr. on leaves of common poinsettia (Euphorbia pulcherrima Willd.) |
| title_short | Development of Botrytis cinerea Pers. ex Fr. on leaves of common poinsettia (Euphorbia pulcherrima Willd.) |
| title_sort | development of botrytis cinerea pers ex fr on leaves of common poinsettia euphorbia pulcherrima willd |
| topic | common poinsettia Euphorbia pulcherrima Botrytis cinerea development grey mould electrolyte leakage |
| url | https://pbsociety.org.pl/journals/index.php/aa/article/view/1925 |
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