Influence of Altitudes on Sporangia Size and Aggressiveness of Phytophthoracolocasiae Isolates in Cameroon

Authors

  • G.R. Tsopmbeng
  • J.A. Lienou
  • D.A. Fontem

Keywords:

altitude, aggressiveness, Phytophthoracolocasiae, sporangia size

Abstract

A study was carried out in four altitudes in Cameroon to assess the size of the sporangia and the aggressiveness of Phytophthoracolocasiae isolates on taro cultivars. The study was conducted in the West and Littoral regions, which include high, medium and low altitude. Sporangia sizes were measured with the microscope on 50 sporangia collected from each isolate and the cross infectivity of the isolates was assessed on leaf fragments of four cultivars; namely Green Purplish Petiole (GPP), Pink Petiole (PP),

References

Paiki F.A. 1996. Symptoms of taro leaf bight disease (Phytophthoracolocasiae) and relationship with yield components in Biak, Irain Jaya. Sci. New Guin. 21: 153-157.

Singh D., Jackon G., Hunter D., Fullerton R., Lebot V., Taylor M., Iosefa T., Okpul T. and Tyson J. 2012.Taro Leaf Blight- A Threat to Food Security. Agriculture 2: 182-203.

Jackson G.V.H., Gollifer D.E., Newhook F.J. 1985. Studies on the taro leaf blight fungus Phytophthoracolocasiaein the Solomon Islands: control by fungicides and spacing. Ann. Appl. Biol. 96:1

Thankappan M. 1985. Leaf blight of taro-a review.J Root Crops11:1

Misra R.S. and Chowdhury S.R. 1997.Phytophthora Leaf Blight Disease of Taro.Technical Bulletin Series 21. Trivandrum, India: Central Tuber Crops Research Institute and St Joseph Press.

Bandyopadhyay R., Sharma K., Onyeka T.J., Aregbesola A. and Kumar L.P. 2011.First Report of Taro (Colocasiaesculenta) Leaf Blight Caused by Phytophthoracolocasiae in Nigeria.Disease Notes 95(5): 618.

Omane E.,Oduro K.A., Cornelius E.W., Opuku I.Y., Akrofi A.Y. Sharma K., Lava kumar S. and Bandyopadhyay R. 2012. First report of leaf blight of taro (Colocasiaesculenta) caused by Phytophthora colocasiae in Ghana. Dis. Notes 96(2): 292.

Guarino L. 2010. Taro leaf blight in Cameroon? 2010. Agricultural Biodiversity Weblog. Available online: http:/agro.biodiver.se/2010/07/taro-leaf-blght-in-Cameroon/ Accessed on 15 May 2012).

Scot N., Brooks F. &Teves G. 2011. Taro Leaf Blight in Hawai

Gurr, P. 1996. The taro leaf blight situation in American Samoa.Taro Leaf Blight Seminar.Proceedings.Alafua, Western Samoa, 22

Jackson G.V.H. 1999.Taro leaf blight.Pest Advisory Leaflet 3.Plant Protection Service of the Secretariat of the Pacific Community.2 p.

Erwin D.C. and Ribeiro O.K. 1996.Phytophthora Diseases Worldwide. St Paul; MN, USA: APS Press.

Trimanto, Sajidan and Sugiyarto 2010. Characterisation of Taro (Colocasiaesculenta) based on morphological and isozymic patterns markers. Bioscience 2 (1): 7-14

Robin C.G. 2008. Commercial dasheen (Colocasiaesculenta(L.)Schott) var. esculenta production and post-harvest protocol for the OECS.Caribbean Agricultural Research and Development Institut- Dominica 31p.

Bambara, H. M. J. 2009. Caract

Brooks F.E. 2008.Detached-Leaf biossay for evaluating taro resistance to Phytophthoracolocasiae.Plant Disease 92: 126-131.

Fontem D.A., Olanya O.M., Tsopmbeng G.R. and Owona M.A.P. 2007.Metalaxyl sensitivity and cross infectivity of Phytophthorainfestans isolates from garden huckleberry, potato and tomato in Cameroon. African Potato Association Conferences Proceedings 7: 102-112.

Brunt J., Hunter D. and Delp C. 2001.A bibliography of taro leaf blight.Secretariat of the Pacific Community, Noumea, New Caledonia.96 p.

Gerrettson-Cornell L. 1994. A Compendium and classification of the species of the genus Phytophthora De Bary by the canons of the traditional taxonomy. Research Division, State Forests of New South Wales.Technical Paper (45), 96 p.

Brooks F.E. 2005. Taro leaf blight.The Plant Health Instructor. http://www.apsnet.org/edcenter/intropp/lessons/fungi/, consulted on 17 December 2012.

Vishnu S.N., Muthukrishnan S., Vinayaka M. H. Muthulekshmi L. J., Raj S. M.Syamala S.V. and Mithun R. 2013. Genetic diversity of Phytophthoracolocasiaeisolates in India based on AFLP analysis. Biotech 3:297

Fontem D.A., Tsopmbeng G.R., Owona M.A.P. &Olanya O.M. 2001. Infectivity and sensitivity to m

Downloads

Published

2014-03-19

How to Cite

Tsopmbeng, G., Lienou, J., & Fontem, D. (2014). Influence of Altitudes on Sporangia Size and Aggressiveness of Phytophthoracolocasiae Isolates in Cameroon. International Journal of Sciences: Basic and Applied Research (IJSBAR), 13(1), 333–341. Retrieved from https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/1876

Issue

Vol. 13 No. 1 (2014)

Section

Articles

License

Authors who submit papers with this journal agree to the following terms.