ORIGINAL ARTICLE
Incidence of the two date palm pathogens, Thielaviopsis paradoxa and T. punctulata in soil from date palm plantations in Elx, South-East Spain
1
Biology Department, College of Science, University of Basrah,Basrah, Iraq
2
Laboratory of Plant Pathology, Department of Marine Sciences and Applied Biology
University of Alicante, Apto 99 03080 Alicante, Spain
Corresponding author
Samir K. Abdullah
Biology Department, College of Science, University of Basrah,Basrah, Iraq
Biology Department, College of Science, University of Basrah,Basrah, Iraq
Journal of Plant Protection Research 2009;49(3):276-279
KEYWORDS
TOPICS
ABSTRACT
The present study reports the frequent isolation of the two date palm pathogens Thielaviopsis paradoxa (de Seynes) Hohn and T. punctulata (Hennebert) Paulin, Harrington et McNew from soil of date palm plantations at Elx, south-east Spain, using dilution plate, direct soil plating or by soil treatment either with acetic acid or phenol. The two species showed a high isolation rate.T. punctulata detected from all samples (100% isolation rate), whereas, T. paradoxa showed 52% isolation rate.Total fungal colony count, ranged from 1.1x105–6 x 105, CFU/g dry soil. Out of these, T. punculata comprised between 0.2–3.2% and T. paradoxa, between 0.5–4.4%. Both species were characterized by development of thick-walled aleuroconidia either singly (T. punctulata) or in chains (T. paradoxa) in addition to the phialoconidia. The widespread occurrence of the two pathogens in soil may contribute to the possibility of infection of newly transplanted offshoots of date palms
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
REFERENCES (23)
1.
Abbas E.H., Abdulla. A.S. 2003. First report of neck bending disease on date palm in Qatar. Plant Pathol. 52, p 790.
2.
Abbas E.H., Mouhi M.N., Aboud H.M., Saleh H.M. 1991. Association of Oryctes elegans and Chalaopsis radicicola in head bending disease of date palm in Iraq. Iraqi J. Microbiol. 3: 212–219.
3.
Abbas E.H., Al-Izi,M.A., Aboud H.M., Saleh H.M. 1997. Neck bending: a new disease affecting date palm in Iraq. Lebanon 27–31 October, 1997. Sixth Arab congress of plant protection, p. 256.
4.
Abdullah S.K., Zora S.E.1993. Soil microfungi from date palm plantations in Iraq. Basrah J. Sci. B.11: 45–57.
5.
Abdullah S.K., Asensio L., Monfort E., Gomez-Vidal,S., Palma-Guerrero J., Salinas J., Lopez-Lorca L.V., Jansson H.B., Guarro J. 2005. Occurrence in Elx, SE Spain of inflorescence rot disease of date palm caused by Mauginiella scaettae. J. Phytopathol. 153: 417–422.
6.
Abdullah S.K., Monfort E., Asensio L., Salinas J.,Lopez-Lorca,L.V., Jansson H.B. 2006. A study on soil mycobiota from date palm plantations in Elx, SE Spain. Abu Dhabi. 19–21 February, 2006.Third International Date Palm Conference, p. 84 .
7.
Al-Doory Y., Tolba M.K., Al-Ani A. 1959. On the fungal flora of Iraqi soil.II: Central Iraq Mycologia 51: 429–439.
8.
Djerbi M. 1983 Diseases of date palm. FAO Regional Project. Palm and dates research centre in the near East and North Africa, 106 pp.
9.
Ellis M.B. 1971. Dematiaceous Hyphomycetes. CAB Puplications. The Eastern Press, London 608 pp.
10.
Ellis M.B. 1976. More dematiaceous hyphomycetes, CAB Puplications. The Eastern Press, London, 507 pp.
11.
El-Morsy M.A. 1999. Studies on certain fungal diseases of date palm in New Valley. M.Sc. Thesis, Assiut University. Cente Environmental Studies, 54 pp.
12.
Ferry M., Greiner D. 1997. The evolution and present situation of the date palm (Phoenix dactylifera) grove of Elche, Spain. Acta Hort. (ISHS) 486: 277–284.
13.
Furuya K., Naito A. 1979. An effective method for isolation of Boothiella tetraspory from soil. Trans. Mycol. Soc. Japan 20: 309–311.
14.
Furuya K., Naito A. 1980. Stimulation of ascospore germination by phenolic compounds in members of the sordariaceae. Trans. Mycol. Soc. Japan 21: 77–85.
15.
Johnson L.E., Curl E.A., Bond J.H., Fribourgh H.A.1959. Methods for Studying Soil Microflora-Plant Disease Relationships. Burgess Publ. Co. Minneapolis, 247 pp.
16.
McIiveen W.D., Edington L.V. 1972. Isolation of Thielaviopsis basicola from soil with umbelliferous root tissues as bait. Can. J. Bot. 50: 1363–1366.
17.
Ortos S., Lopez-Jimenas J.A. 2003. Palm management for leaf harvest: a new method to produce white leaves for the date palm. Palms 47: 31–36.
18.
Paulin-Mahady A.E., Harrington,T.C., McNew D. 2002. Phylogenic and taxonomic evaluation of Chalara, Chalaropsis and Thielaviopsis anamorphs associated with Ceratocystis. Mycologia 94: 62–72.
19.
Suleman P., Al-Musallam A., Menzes C.A. 2001 The effect of solute potential and water stress on black scorch caused by Chalara paradoxa and Chalara radicicola on date palms. Plant Dis. 85: 80–83.
20.
Suleman P., Al-Musallam A., Menezes C.A. 2002. The effect of biofungicide Mycostop on Ceratocystis radicicola, the causal agent of black scorch on date palm. BioControl 47: 207–216.
21.
Warcup J.H. 1960. Methods for isolation and estimation of activity of fungi in soil. p. 3–21. In: “The Ecology of Soil Fungi” (D. Parkinson, J.S. Waid, eds.). Liverpool University Press U.K.
22.
Warcup J.H., Baker K.F. 1960. Occurrence of dormant ascospores in soil. Nature 197: 1317–1818.
23.
Yarwood C.E.1946. Isolation of Thielaviopsis basicola from soil by means of carrot discs. Mycologia 38: 346–348.
Share
RELATED ARTICLE
| eISSN: | 1899-007X |
| ISSN: | 1427-4345 |
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
