Overview of purple blotch disease and understanding its management through chemical, biological and genetic approaches
| Autor: | Reetika Mahajan, Jag Paul Sharma, Muntazir Mushtaq, Shahid Ahamad, Susheel Kumar Sharma, Ankila Salathia, Aejaz Ahmad Dar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
QTL mapping Agriculture (General) Plant Science Plant disease resistance 01 natural sciences Biochemistry S1-972 Crop chemistry.chemical_compound Food Animals Alternaria porri purple blotch genome editing Mancozeb Tebuconazole genetic engineering Ecology biology Sowing food and beverages 04 agricultural and veterinary sciences biology.organism_classification Fungicide Horticulture chemistry Azoxystrobin breeding 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Allium Animal Science and Zoology Agronomy and Crop Science 010606 plant biology & botany Food Science |
| Zdroj: | Journal of Integrative Agriculture, Vol 19, Iss 12, Pp 3013-3024 (2020) |
| ISSN: | 2095-3119 |
| Popis: | Purple blotch disease of Allium spp. crops caused by Alternaria porri has remained a major concern in agriculture for both farmers and research fraternity as it severely damages the crops and drastically reduces the yield. The symptoms appear after 1–4 days of infection and bulb rot begin, and eventually turn into dark reddish-purple and then brownish/black lesions. Many factors like season, time of sowing, humidity and temperature, stage of crop, and plant architecture have a huge impact on the progression of purple blotch disease. Many genic markers based on amplification of an Alta1 gene sequence have been designed for identification and differentiation of different Alternaria species groups. Among the most commonly used fungicides, mancozeb, tebuconazole, difenaconazole and azoxystrobin were found to be the ideal for the management of purple blotch disease and increased garlic yield. Many biological approaches such as plant extracts and bio-control agents were found partially effective for controlling the disease. A report on QTL mapping for purple blotch resistance discovered that purple blotch resistance is controlled by a single dominant gene ApR1. To completely understand the purple blotch disease resistance for crop improvement, a study is required at transcriptome level for hunting purple blotch resistant genes by gene annotation and mining. Genetic engineering and genome editing are other approaches that can be done for engineering disease resistance in Allium crops for genetic improvement. |
| Databáze: | OpenAIRE |
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