Histopathological Studies of Eggplant Roots as Affected by IAA, Agrobacterium tumefaciens and Meloidogyne incognita Alone and in Combinations


	Plant Pathology Journal
	Year: 2003 \| Volume: 2 \| Issue: 1 \| Page No.: 1-9 DOI: 10.3923/ppj.2003.1.9

Histopathological Studies of Eggplant Roots as Affected by IAA, Agrobacterium tumefaciens and Meloidogyne incognita Alone and in Combinations

Mohamed A. Elwakil , Z.A. Mohamed and A.G.El-Sherif

Abstract: The anatomy of eggplant roots as affected by the application of IAA, Agrobacterium tumefaciens and Meloidogyne incognita alone and in combination was studied. IAA and A. tumefaciens, alone and in combination increased the root diameter, cortex thickness, number of cortex layers, stele diameter, number of xylem vessels but decreased the vessel diameter. Inoculation with M. incognita led to the formation of multinucleated giant cells surrounded by deformed xylem elements, hypertrophy of the cortex and hyperplasia of the pericycle. More giant cells with higher dimensions were formed and more eggs/egg mass were produced in plants where IAA, A. tumefaciens alone or in combination was introduced with M. incognita. On the other hand, the presence of IAA, A. tumefaciens or their combination extended the life-span of giant cells, providing long-lasting feeding sites for the nematode. The auxin-mediated role of A. tumefaciens in development and reproduction of M. incognita was discussed.

[Fulltext PDF] [References] [View Citation] [Report Citation]

How to cite this article:

Mohamed A. Elwakil , Z.A. Mohamed and A.G.El-Sherif , 2003. Histopathological Studies of Eggplant Roots as Affected by IAA, Agrobacterium tumefaciens and Meloidogyne incognita Alone and in Combinations. Plant Pathology Journal, 2: 1-9.

DOI: 10.3923/ppj.2003.1.9

URL: https://scialert.net/abstract/?doi=ppj.2003.1.9

COMMENT ON THIS PAPER

	Full Name:
	E-mail:
	Comments:

Navigation


		Online First
		Current Issue
		Previous Issues
		Editorial Board
		Submit a Manuscript
		Guide to Authors
		Subscribe to E-alerts

Indexed In


		AGRICOLA
		AGRIS
		ASCI-Database
		Google Scholar
		PubMed
		SCIMAGO
		SCOPUS