Effect of genotype, concentration and timing of salicylic acid application to Phalaenopsis against Dickeya dadantii infection
| Autor: | Sudarsono Sudarsono, Dewi Sukma, I Putu Wahyu Sanjaya, Ming-Tsair Chan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine biology Inoculation QH301-705.5 Plant Science biology.organism_classification 01 natural sciences Dickeya dadantii Soft rot disease dickeya dadantii inducer phalaenopsis resistance salicylic acid soft-rot disease 03 medical and health sciences Horticulture chemistry.chemical_compound 030104 developmental biology chemistry Genotype Plant species Animal Science and Zoology Inducer Phalaenopsis Biology (General) Molecular Biology Salicylic acid 010606 plant biology & botany |
| Zdroj: | Biodiversitas, Vol 21, Iss 9 (2020) |
| ISSN: | 2085-4722 |
| Popis: | Sanjaya IPW, Sukma D, Sudarsono, Chan MT. 2020. Effect of genotype, concentration and timing of salicylic acid application to Phalaenopsis against Dickeya dadantii infection. Biodiversitas 21: 4317-4323. Soft-rot because of Dickeya dadantii (Dd) infection is one of the most difficult to control, affecting the cultivation of Phalaenopsis in tropical regions. Salicylic acid (SA) is known as an inducer of resistance against pathogens in some plant species. The study aim to identify the effects of genotypes, concentrations, and timing of salicylic acid application to Phalaenopsis against D. dadantii inoculation. In experiment 1, eight Phalaenopsis genotypes were treated by SA at doses of 0 and 60 ppm and then inoculated with D. dadantii. At a dose of 60 ppm, SA did not increase the resistance to D. dadantii in any genotypes. In experiment 2, a representative of a very susceptible genotype (P. amabilis) was treated with high SA concentrations (60, 360, and 720 ppm). The results demonstrated that at SA concentrations of 360 and 720 ppm, slightly increase P. amabilis resistance to D. dadantii. In experiment 3, the most effective SA concentration (720 ppm) was used at 2, 3, 5, or 7 days after SA treatment. The timing of the SA application did not affect the resistance of P. amabilis to D. dadantii. The present study shows that SA concentrations up to 60 ppm did not inhibit D. dadantii infection. Nevertheless, such inhibition was observed at a high SA dose (720 ppm) for a short period. |
| Databáze: | OpenAIRE |
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