Biblioteca Digital de VanguardiaConidial germination of Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) and histological alterations on stems of pitahaya (Hylocereus undatus H.) (Haworth) Britton & Rose
Conidial germination of Botryosphaeria dothidea (anamorph: Fusicoccum) in sterile distilled water and 1% sterile dextrose solution was evaluated at 4, 6, 12, 24 and 36 h after incubation. Also, it was described the anatomical changes on pitahaya stems induced by this fungus, collected in the field a...
| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
2013
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| Acceso en línea: | http://bdigital.uncu.edu.ar/5037 |
| _version_ | 1782341128606973952 |
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| author | Valencia-Botín, Alberto J. Cisneros-López, María E. Ruíz-Sánchez, Esaú |
| author_facet | Valencia-Botín, Alberto J. Cisneros-López, María E. Ruíz-Sánchez, Esaú |
| author_sort | Valencia-Botín, Alberto J. |
| collection | Repositorio |
| description | Conidial germination of Botryosphaeria
dothidea (anamorph: Fusicoccum) in sterile
distilled water and 1% sterile dextrose solution
was evaluated at 4, 6, 12, 24 and 36 h after
incubation. Also, it was described the anatomical
changes on pitahaya stems induced by this
fungus, collected in the field and artificially
inoculated in the laboratory. Conidial germination
was less than 30% in water and it was improved
when 1% dextrose was added to the water.
In 1% dextrose solution the germination was
90% after 4h of incubation and 100% at 6 h.
Pathogen germ tubes had entered through
wounds and sometimes through stomata and
hyphae colonized intra and intercellularly in
the parenchyma-chlorenchyma tissues. On
naturally and artificially diseased stems the
main alterations were: destruction of cuticle,
hyperplasia of epidermal and collenchymatous
hypodermal cells and conform the advance
of the pathogen a layer of lignified periderm
was formed surrounding the damaged tissues;
however, it couldn't stop the advance of the
pathogen and the cells that surrounded the
lesion suffered necrosis. |
| format | Artículo |
| id | uncu-5037 |
| institution | Biblioteca Digital - UNCUYO |
| language | Inglés |
| publishDate | 2013 |
| publisher | Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
|
| record_format | ojs |
| spelling | uncu-50372013-08-07T12:56:34Z Conidial germination of Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) and histological alterations on stems of pitahaya (Hylocereus undatus H.) (Haworth) Britton & Rose Germinación de conidios de Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) y alteraciones histológicas en tallos de pitahaya (Hylocereus undatus) (Haworth) Britton & Rose Valencia-Botín, Alberto J. Cisneros-López, María E. Ruíz-Sánchez, Esaú México Hyloecereus undatus Histopatología Germinación Botryosphaeria dothidea Hongos Fruta del dragón Dragon fruit Stem spot Conidial germination of Botryosphaeria dothidea (anamorph: Fusicoccum) in sterile distilled water and 1% sterile dextrose solution was evaluated at 4, 6, 12, 24 and 36 h after incubation. Also, it was described the anatomical changes on pitahaya stems induced by this fungus, collected in the field and artificially inoculated in the laboratory. Conidial germination was less than 30% in water and it was improved when 1% dextrose was added to the water. In 1% dextrose solution the germination was 90% after 4h of incubation and 100% at 6 h. Pathogen germ tubes had entered through wounds and sometimes through stomata and hyphae colonized intra and intercellularly in the parenchyma-chlorenchyma tissues. On naturally and artificially diseased stems the main alterations were: destruction of cuticle, hyperplasia of epidermal and collenchymatous hypodermal cells and conform the advance of the pathogen a layer of lignified periderm was formed surrounding the damaged tissues; however, it couldn't stop the advance of the pathogen and the cells that surrounded the lesion suffered necrosis. Se evaluó la germinación de conidios de Botryosphaeria dothidea (anamorfo: Fusicoccum) en agua destilada estéril y en una solución de dextrosa 1% a las 4, 6, 12, 24 y 36 h de incubación. También, se describieron los cambios anatómicos en tallos de pitahaya inducidos por este hongo, tanto aquellos naturalmente infectados en campo como inoculados artificialmente en laboratorio. La germinación de conidios en agua estéril solo alcanzó el 30%, mientras que la adición de dextrosa al 1% mejoró la germinación. En una solución de dextrosa al 1% la germinación a las 4 h fue de 90% y del 100% a las 6 h. Los tubos germinativos del hongo penetraron a través de las heridas y algunas veces a través de los estomas y se multiplicaron inter e intracelularmente en los tejidos del parénquima-clorénquima. En tallos enfermos natural y artificialmente, las principales alteraciones fueron: destrucción de la cutícula, hiperplasia de las células epidermales e hipodermales colenquimatosas. Conforme el avance del patógeno se formó una capa de peridermis lignificada que rodeó el tejido dañado; sin embargo, no se detuvo el avance del patógeno y las células que rodeaban la lesión se necrosaron. Fil: Valencia-Botín, Alberto J.. Universidad de Guadalajara (México) Fil: Cisneros-López, María E.. Fil: Ruíz-Sánchez, Esaú. Instituto Tecnológico de Conkal (México) Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 78 Revista de la Facultad de Ciencias Agrarias Vol. 45, no. 1 Revista de la Facultad de Ciencias Agrarias, Vol. 45, no. 1 2013-06-03 eng Inglés http://bdigital.uncu.edu.ar/4945 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar/ article info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias http://bdigital.uncu.edu.ar/5037 |
| spellingShingle | México Hyloecereus undatus Histopatología Germinación Botryosphaeria dothidea Hongos Fruta del dragón Dragon fruit Stem spot Valencia-Botín, Alberto J. Cisneros-López, María E. Ruíz-Sánchez, Esaú Conidial germination of Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) and histological alterations on stems of pitahaya (Hylocereus undatus H.) (Haworth) Britton & Rose |
| title | Conidial germination of Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) and histological alterations on stems of pitahaya (Hylocereus undatus H.) (Haworth) Britton & Rose
|
| title_full | Conidial germination of Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) and histological alterations on stems of pitahaya (Hylocereus undatus H.) (Haworth) Britton & Rose
|
| title_fullStr | Conidial germination of Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) and histological alterations on stems of pitahaya (Hylocereus undatus H.) (Haworth) Britton & Rose
|
| title_full_unstemmed | Conidial germination of Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) and histological alterations on stems of pitahaya (Hylocereus undatus H.) (Haworth) Britton & Rose
|
| title_short | Conidial germination of Botryosphaeria dothidea Mough.: Fr (Ces. & De Not.) and histological alterations on stems of pitahaya (Hylocereus undatus H.) (Haworth) Britton & Rose
|
| title_sort | conidial germination of botryosphaeria dothidea mough.: fr (ces. & de not.) and histological alterations on stems of pitahaya (hylocereus undatus h.) (haworth) britton & rose |
| topic | México Hyloecereus undatus Histopatología Germinación Botryosphaeria dothidea Hongos Fruta del dragón Dragon fruit Stem spot |
| url | http://bdigital.uncu.edu.ar/5037 |