A - Papers appearing in refereed journals
Huang, Y-J., Toscano-Underwood, C., Fitt, B. D. L., Hu, X. J. and Hall, A. M. 2003. Effects of temperature on ascospore germination and penetration of oilseed rape (Brassica napus ) leaves by A- or B-group Leptosphaeria maculans (phoma stem canker). Plant Pathology. 52 (2), pp. 245-255. https://doi.org/10.1046/j.1365-3059.2003.00813.x
Authors | Huang, Y-J., Toscano-Underwood, C., Fitt, B. D. L., Hu, X. J. and Hall, A. M. |
---|---|
Abstract | Ascospores of both A-group and B-group Leptosphaeria maculans germinated at temperatures from 5 to 20degreesC on leaves of oilseed rape. Germination of ascospores of both groups started 2 h after inoculation and percentage germination reached its maximum about 14 h after inoculation at all temperatures. Both the percentage of A-/B-group ascospores that had germinated after 24 h incubation and germ tube length increased with increasing temperature from 5 to 20degreesC. Germ tubes from B-group ascospores were longer than those from A-group ascospores at all temperatures, with the greatest difference at 20degreesC. Hyphae from ascospores of both groups penetrated the leaves predominantly through stomata, at temperatures from 5 to 20degreesC. A-group ascospores produced highly branched hyphae that grew tortuously, whereas B-group ascospores produced long, straight hyphae. The percentage of germinated ascospores that penetrated stomata increased with increasing temperature from 5 to 20degreesC and was greater for A-group than for B-group L. maculans after 40 h incubation. |
Keywords | Agronomy; Plant Sciences |
Year of Publication | 2003 |
Journal | Plant Pathology |
Journal citation | 52 (2), pp. 245-255 |
Digital Object Identifier (DOI) | https://doi.org/10.1046/j.1365-3059.2003.00813.x |
Open access | Published as non-open access |
Funder project or code | 424 |
507 | |
Project: 4325 | |
Epidemiology of winter oilseed rape diseases | |
Quantitative comparative plant disease epidemiology | |
ISSN | 00320862 |
Publisher | Wiley |
Permalink - https://repository.rothamsted.ac.uk/item/88zq8/effects-of-temperature-on-ascospore-germination-and-penetration-of-oilseed-rape-brassica-napus-leaves-by-a-or-b-group-leptosphaeria-maculans-phoma-stem-canker