ALLELOPATHIC ACTIVITY OF SOME DESERT PLANTS AGAINST PLANT PATHOGENIC BACTERIA AND NEMATODES
| Autor: | Nehad Fathy Abdel Aziz, Abdel-Rahman A. G, Hanan A. Hashem, Hala A. Kassem |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Exudate biology fungi food and beverages Erwinia Solanum nigrum biology.organism_classification 01 natural sciences Artemisia judaica 030507 speech-language pathology & audiology 03 medical and health sciences Horticulture Meloidogyne incognita medicine Root-knot nematode medicine.symptom 0305 other medical science Antibacterial activity Allelopathy 010606 plant biology & botany |
| Zdroj: | Journal of Environmental Science. 37:15-35 |
| ISSN: | 2636-3178 |
| DOI: | 10.21608/jes.2017.19465 |
| Popis: | The extensive use of chemicals in plant protection has given rise to concerns about pesticide residues in the environment and to the development of pesticide-resistance by any organisms. Allelopathic plants offer better alternative for this purpose due to being cost-saving, eco-friendly, easy to use, efficient and safe. So, the present work was carried out to evaluate the allelopathic effect of three desert plants (Artemisia judaica, Asphodelus microcarpus, Solanum nigrum) on root knot nematode (Meloidogyne incognita) and three gram negative pathogenic bacterial strains (Erwinia carotovora, Xanthomonas campestris and Ralestonia solanacearum) using root exudates and leaf extracts of each plant with different concentrations. Under laboratory conditions, the data indicated that the three plants contain nematicidal compounds; the inhibitory effect was proportional to the concentrations used. Artemisia judaica extract showed the highest level (100%) of nematicidal activity and indicated good antibacterial activities against all the tested bacterial strains also recorded the best result of minimum inhibitory concentration followed by A.microcarpus root exudate. While the root exudate of A.judaica, S. nigrum had no antibacterial activity, leaf extracts of S. nigrum had weak antibacterial activity. Aqueous leaf extracts of A.judaica appears to be attractive for the development of nematicidal and bactericidal bio- pesticides. |
| Databáze: | OpenAIRE |
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