Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitro

Several different fungi can cause tar leaf spot diseases in maple trees, including three fungi of the genus Rhytisma. Rhytisma acerinum (Pers.) Fries is an ascomycete that forms black stromata known as tar spot on the adaxial surface of the leaves of Acer species. The tar spot (R. acerinum) disease...

Full description

Bibliographic Details
Main Authors: S.M. Karami, M.R. Kavosi, G. Hajizadeh, H. Jalilvand
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2014-08-01
Series:Journal of Forest Science
Subjects:
Online Access:https://jfs.agriculturejournals.cz/artkey/jfs-201408-0004_biotechnical-control-of-tar-spot-rhytisma-acerinum-disease-on-velvet-maple-acer-velutinum-boiss-in-vitro.php
_version_ 1828008034465480704
author S.M. Karami
M.R. Kavosi
G. Hajizadeh
H. Jalilvand
author_facet S.M. Karami
M.R. Kavosi
G. Hajizadeh
H. Jalilvand
author_sort S.M. Karami
collection DOAJ
description Several different fungi can cause tar leaf spot diseases in maple trees, including three fungi of the genus Rhytisma. Rhytisma acerinum (Pers.) Fries is an ascomycete that forms black stromata known as tar spot on the adaxial surface of the leaves of Acer species. The tar spot (R. acerinum) disease has been increasing in incidence and severity in maples of Hyrcanian forests, northern Iran, in recent years. One of the best ways to manage infestations by R. acerinum is through adequate biotechnical techniques. The isolation of fungal spore colonies was evaluated using different dosages of Oxywet 10% (50, 100, 200, 500 µl), Gentamicin 5% (100, 200, 400; 1,000 µl), and Amoxicillin antibiotics 20% (25, 50, 100, 250 µl) in 100 ml of distilled water in each treatment. All possible combinations of single doses were applied using light and dark treatments. In light conditions, it appears that the Oxywet (200 µl) had the significant effect on controlling R. acerinum. Reduced fungal growth, coefficient and inhibition of fungal growth were observed in the light treatment. The other antibiotics (Gentamicin, Amoxicillin) were not so effective in controlling this pathogen. Results of spore germination showed a significant difference between all treatments. All treatments were tested in pure cultures in the laboratory only. The results obtained cannot be expected of the same effectiveness in open field trials.
first_indexed 2024-04-10T08:19:47Z
format Article
id doaj.art-aaeb67d258694162b4890396a8523281
institution Directory Open Access Journal
issn 1212-4834
1805-935X
language English
last_indexed 2024-04-10T08:19:47Z
publishDate 2014-08-01
publisher Czech Academy of Agricultural Sciences
record_format Article
series Journal of Forest Science
spelling doaj.art-aaeb67d258694162b4890396a85232812023-02-23T03:42:32ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2014-08-0160833033510.17221/50/2014-JFSjfs-201408-0004Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitroS.M. Karami0M.R. Kavosi1G. Hajizadeh2H. Jalilvand3Department of Forest Science, Faculty of Forest Ecology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Golestan, IranDepartment of Forest Science, Faculty of Forest Ecology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Golestan, IranDepartment of Forestry, Faculty of Natural Resources, Sari University of Agricultural Sciences and Natural Resources, Sari, Mazandaran, IranDepartment of Forestry, Faculty of Natural Resources, Sari University of Agricultural Sciences and Natural Resources, Sari, Mazandaran, IranSeveral different fungi can cause tar leaf spot diseases in maple trees, including three fungi of the genus Rhytisma. Rhytisma acerinum (Pers.) Fries is an ascomycete that forms black stromata known as tar spot on the adaxial surface of the leaves of Acer species. The tar spot (R. acerinum) disease has been increasing in incidence and severity in maples of Hyrcanian forests, northern Iran, in recent years. One of the best ways to manage infestations by R. acerinum is through adequate biotechnical techniques. The isolation of fungal spore colonies was evaluated using different dosages of Oxywet 10% (50, 100, 200, 500 µl), Gentamicin 5% (100, 200, 400; 1,000 µl), and Amoxicillin antibiotics 20% (25, 50, 100, 250 µl) in 100 ml of distilled water in each treatment. All possible combinations of single doses were applied using light and dark treatments. In light conditions, it appears that the Oxywet (200 µl) had the significant effect on controlling R. acerinum. Reduced fungal growth, coefficient and inhibition of fungal growth were observed in the light treatment. The other antibiotics (Gentamicin, Amoxicillin) were not so effective in controlling this pathogen. Results of spore germination showed a significant difference between all treatments. All treatments were tested in pure cultures in the laboratory only. The results obtained cannot be expected of the same effectiveness in open field trials.https://jfs.agriculturejournals.cz/artkey/jfs-201408-0004_biotechnical-control-of-tar-spot-rhytisma-acerinum-disease-on-velvet-maple-acer-velutinum-boiss-in-vitro.phpantibioticfungus
spellingShingle S.M. Karami
M.R. Kavosi
G. Hajizadeh
H. Jalilvand
Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitro
Journal of Forest Science
antibiotic
fungus
title Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitro
title_full Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitro
title_fullStr Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitro
title_full_unstemmed Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitro
title_short Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitro
title_sort biotechnical control of tar spot rhytisma acerinum disease on velvet maple acer velutinum boiss in vitro
topic antibiotic
fungus
url https://jfs.agriculturejournals.cz/artkey/jfs-201408-0004_biotechnical-control-of-tar-spot-rhytisma-acerinum-disease-on-velvet-maple-acer-velutinum-boiss-in-vitro.php
work_keys_str_mv AT smkarami biotechnicalcontroloftarspotrhytismaacerinumdiseaseonvelvetmapleacervelutinumboissinvitro
AT mrkavosi biotechnicalcontroloftarspotrhytismaacerinumdiseaseonvelvetmapleacervelutinumboissinvitro
AT ghajizadeh biotechnicalcontroloftarspotrhytismaacerinumdiseaseonvelvetmapleacervelutinumboissinvitro
AT hjalilvand biotechnicalcontroloftarspotrhytismaacerinumdiseaseonvelvetmapleacervelutinumboissinvitro