Susceptibility of common weeds and cultivated crops in major maize growing agroecological zones of Uganda to viruses causing maize lethal necrosis disease
Journal Title: African Journal of Biological Sciences - Year 2019, Vol 1, Issue 4
Abstract
Maize lethal necrosis (MLN) disease is caused when maize plants become coinfected with Maize chlorotic mottle virus (MCMV) and potyviruses notably Sugarcane Mosaic Virus (SCMV). Apart from maize, little is known about susceptibility of weed species and cultivated crop species usually growing in proximity with maize to MLN viruses in Uganda. The common weeds and crop plants were mechanically inoculated with combined sap from MCMV and SCMV infected maize plants. Samples were tested for MLN causing viruses by Double Antibody Sandwich Enzyme-Linked Immunosorbent Assay (DAS-ELISA) and Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR). The weeds that were susceptibility to MCMV were Digitaria abyssinica, Eleusine africana and Roetboellia cochinchinensis; while those susceptible to SCMV were Pennisetum purpureum, Panicum maximum and Roetboellia cochinchinensis. The cultivated crops were susceptible only to MCMV and included cassava (Manihot esculenta), groundnut (Arachis hypogaea) and bean (Phaseolus vulgaris). Common weeds and cultivated crops growing close to maize in Uganda have differential susceptibility to MLN causing viruses and can act as reservoirs of MLN causing viruses. It is critical to identify non MLN hosts in cultivated crops for crop rotation and early weeding to reduce on MLN virus inoculum in cropping systems.
Authors and Affiliations
Mudde B. , Miano D. W. , Olubayo F. M. , Asea G. , Kilalo D. C. , Kwemoi D. B. , Adriko J. , Ssekiwoko F. , Male A. , Kiggundu A.
Keywords
Related Articles
- EP ID EP656649
- DOI 10.33472/AFJBS.1.4.2019.1-14
- Views 121
- Downloads 0
Dormancy and germination in two Australian native species (Acacia aneura and Rhodanthe floribunda)
In the laboratory of plant physiology of the University of Queensland (Gatton Campus), a seed germination experiment was undertaken on seeds of two Australian native plant species – Rhodanthe floribundato and Acacia aneu...
Influence of mangrove deforestation and land use change on trophic organization of fish assemblages in creek systems
The impacts of human related activities on trophic structure of mangrove associated fish species, was investigated by sampling fish in mangrove creeks. Trophic organization and stable isotope signatures (δ13C and δ15N) o...
Susceptibility of common weeds and cultivated crops in major maize growing agroecological zones of Uganda to viruses causing maize lethal necrosis disease
Maize lethal necrosis (MLN) disease is caused when maize plants become coinfected with Maize chlorotic mottle virus (MCMV) and potyviruses notably Sugarcane Mosaic Virus (SCMV). Apart from maize, little is known about su...
Variations of biomass and carbon contents in different traits and components of herbaceous species from tropical grassland
Grasslands play a critical role in the global storage of atmospheric carbon (C). Precise estimation of C contents in different plant components is essential to formulate a strategy for mitigating the atmospheric C. Bioma...
Comparative differential leucocyte count and morphometrical analyses of black rats Rattus rattus (Linnaeus, 1758) and white rats Rattus norvegicus (Berkenhout, 1769)
This paper aims at a systematic approach to morphologically characterize of five types of white blood cells (WBC), and its nuclei from light microscopic image of blood samples. Hence, cellular and nuclei based geometric...