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Detection and Management of Mango Dieback Disease in the United Arab Emirates
- Source :
- International Journal of Molecular Sciences, Vol 18, Iss 10, p 2086 (2017), International Journal of Molecular Sciences; Volume 18; Issue 10; Pages: 2086, International Journal of Molecular Sciences
- Publication Year :
- 2017
- Publisher :
- MDPI AG, 2017.
-
Abstract
- Mango is affected by different decline disorders causing significant losses to mango growers. In the United Arab Emirates (UAE), the pathogen was isolated from all tissues sampled from diseased trees affected by Lasiodiplodia theobromae. Symptoms at early stages of the disease included general wilting appearance of mango trees, and dieback of twigs. In advanced stages, the disease symptoms were also characterized by the curling and drying of leaves, leading to complete defoliation of the tree and discolouration of vascular regions of the stems and branches. To substantially reduce the devastating impact of dieback disease on mango, the fungus was first identified based on its morphological and cultural characteristics. Target regions of 5.8S rRNA (ITS) and elongation factor 1-α (EF1-α) genes of the pathogen were amplified and sequenced. We also found that the systemic chemical fungicides, Score®, Cidely® Top, and Penthiopyrad®, significantly inhibited the mycelial growth of L. theobromae both in vitro and in the greenhouse. Cidely® Top proved to be a highly effective fungicide against L. theobromae dieback disease also under field conditions. Altogether, the morphology of the fruiting structures, molecular identification and pathogenicity tests confirm that the causal agent of the mango dieback disease in the UAE is L. theobromae.
- Subjects :
- 0106 biological sciences
0301 basic medicine
mango
United Arab Emirates
Fungus
DNA, Ribosomal
01 natural sciences
Article
Catalysis
Inorganic Chemistry
lcsh:Chemistry
03 medical and health sciences
Disease management (agriculture)
dieback
Botany
pathogenicity
Mangifera
Lasiodiplodia theobromae
Physical and Theoretical Chemistry
DNA, Fungal
Molecular Biology
Pathogen
lcsh:QH301-705.5
Phylogeny
Spectroscopy
Mycelium
Plant Diseases
biology
Organic Chemistry
Wilting
General Medicine
biology.organism_classification
disease management
RNA, Ribosomal, 5.8S
Computer Science Applications
Fungicide
Horticulture
030104 developmental biology
lcsh:Biology (General)
lcsh:QD1-999
Saccharomycetales
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 14220067
- Volume :
- 18
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- International Journal of Molecular Sciences
- Accession number :
- edsair.doi.dedup.....58eba2ef7cfca193efe722bf36770a2e