Calcium oxalate crystal formation in Rhizoctonia solani AG 2-1 culture and infected crucifer tissue: relationship between host calcium and resistance
| Autor: | J. Yang, Jalpa P. Tewari, P.R. Verma |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
biology
fungi Oxalic acid Sinapis Camelina sativa Brassica Calcium oxalate food and beverages chemistry.chemical_element Plant Science Calcium biology.organism_classification Oxalate Rhizoctonia solani chemistry.chemical_compound chemistry Botany Genetics Ecology Evolution Behavior and Systematics Biotechnology |
| Zdroj: | Mycological Research. 97:1516-1522 |
| ISSN: | 0953-7562 |
| DOI: | 10.1016/s0953-7562(09)80227-x |
| Popis: | Crystals of various forms were observed in liquid cultures of Rhizoctonia solani AG2-1 and on the surface of infected hypocotyls of canola ( Brassica napus , cv. Westar), mustard ( Sinapis alba , cv. Arda) and Camelina sativa . The crystals were identified as calcium oxalate based on solubility, staining reaction, potassium permanganate titration and energy-dispersive X-ray microanalysis. More calcium-containing crystals were formed on hypocotyls of the susceptible cv. Westar than on hypocotyls of the resistant cv. Arda and on C. sativa , and on 1-wk-old plants than on 3-wk-old plants. There was no significant difference in total calcium content in non-infected hypocotyl tissues among the three plant genera, and the calcium content did not increase with age of plant tissue. The production of oxalic acid in culture and the formation of calcium oxalate crystals in infected tissues suggested that calcium in plant cells was sequestered by oxalic acid produced by R. solani . |
| Databáze: | OpenAIRE |
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