Results 11 to 20 of about 1,089 (174)

Resistance Against Cassava Brown Streak Viruses From Africa in Cassava Germplasm From South America [PDF]

Frontiers in Plant Science, 2019
Cassava brown streak disease (CBSD) is a severe virus disease of cassava and prevalent in the eastern regions of Africa. The disease is characterized by distinct vein chlorosis and streak symptoms on leaves and stems and necrosis of storage roots.
Samar Sheat, Bettina Fuerholzner, Beate Stein, Stephan Winter   +3 more
doaj   +4 more sources

Comparing the regional epidemiology of the cassava mosaic and cassava brown streak virus pandemics in Africa

Virus Research, 2011
The rapid geographical expansion of the cassava mosaic disease (CMD) pandemic, caused by cassava mosaic geminiviruses, has devastated cassava crops in 12 countries of East and Central Africa since the late 1980s. Region-level surveys have revealed a continuing pattern of annual spread westward and southward along a contiguous 'front'.
J P Legg, M N Maruthi, G Okao-Okuja
exaly   +4 more sources

Absolute quantification of cassava brown streak virus mRNA by real-time qPCR. [PDF]

J Virol Methods, 2017
Cassava brown streak disease (CBSD) is the most important virus disease of cassava and a major food security threat in Africa. Yearly economic losses of up to $100 million USD have been attributed to CBSD. The lack of information on plant-virus interactions has restricted progress in breeding for CBSD resistance.
Shirima RR, Maeda DG, Kanju E, Ceasar G, Tibazarwa FI, Legg JP.   +5 more
europepmc   +5 more sources

Deep Sequencing Reveals a Divergent Ugandan cassava brown streak virus Isolate from Malawi. [PDF]

Genome Announc, 2017
ABSTRACT Illumina sequencing of RNA from a cassava cutting from northern Malawi produced a genome of Ugandan cassava brown streak virus (UCBSV-MW-NB7_2013). Sequence comparisons revealed stronger similarity to an isolate from nearby Tanzania (93.4% pairwise nucleotide identity) than to those previously ...
Mbewe W, Winter S, Mukasa S, Tairo F, Sseruwagi P, Ndunguru J, Duffy S.   +6 more
europepmc   +5 more sources

Deciphering cassava brown streak virus infection in cassava through VPg mediated host protein interactions. [PDF]

Arch Virol
Abstract Cassava brown streak disease (CBSD) poses a major threat to cassava production in Africa. Identifying cassava proteins that interact with cassava brown streak virus (CBSV), the major causal virus, can help elucidate the mechanisms of infection and resistance. Here we constructed a cassava cDNA library and
Kakkunnath SM, Bouvaine S, Kavil SP, Maruthi MN.   +3 more
europepmc   +4 more sources

A Virus-Derived Stacked RNAi Construct Confers Robust Resistance to Cassava Brown Streak Disease [PDF]

Frontiers in Plant Science, 2017
La enfermedad de la raya marrón de la yuca (CBSD, por sus siglas en inglés) amenaza la seguridad alimentaria y económica de los pequeños agricultores de África Oriental y Central, y representa una amenaza para la producción de yuca en África Occidental.
Getu Beyene, Muhammad Ilyas, Henry Wagaba   +2 more
exaly   +5 more sources

First report of cassava brown streak disease and associated Ugandan cassava brown streak virus in Mayotte Island [PDF]

New Disease Reports, 2014
In November 2013, symptoms of yellowing on leaves and brown necrotic rot on tuberous roots (Fig. 1) were observed on different cassava landraces (Manihot esculenta) in Dembeni on Mayotte Island, a French Overseas Department in the southwest Indian Ocean.
Roux-Cuvelier, Michel, Teyssedre, David, Chesneau, Thomas, Jeffray, C., Massé, Delphine, Jade, Katia, Abdoul Karime, A. L., Hostachy, Bruno, Reynaud, Bernard, Legg, James, Lett, Jean-Michel   +10 more
openaire   +8 more sources

Cassava Brown Streak Disease and Ugandan cassava brown streak virus Reported for the First Time in Zambia [PDF]

Plant Disease, 2018
A diagnostic survey was conducted in July 2017 in two northern districts of Zambia to investigate presence or absence of cassava brown streak disease (CBSD) and its causal viruses. In total, 29 cassava fields were surveyed and cassava leaf samples were collected from 116 plants (92 symptomatic and 24 nonsymptomatic).
Rabson M. Mulenga, Laura M. Boykin, Patrick C. Chikoti, Suwilanji Sichilima, Dickson Ng’uni, Olufemi J. Alabi   +5 more
openaire   +3 more sources

Host and virus effects on reversion in cassava affected by cassava brown streak disease [PDF]

Plant Pathology, 2015
The phenomenon of virus‐infected plants naturally recovering health is known as ‘reversion’, and is a type of resistance mechanism exploited in some crop plants for disease control. Various parameters were investigated that affect reversion from cassava brown streak disease ( CBSD ) in three ...
Mohammed, I. U., Ghosh, Saptarshi, Maruthi, M.N.   +2 more
core   +6 more sources

Epidemiological Analysis of Cassava Mosaic and Brown Streak Diseases, and Bemisia tabaci in the Comoros Islands

Viruses, 2022
A comprehensive assessment of cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) was carried out in Comoros where cassava yield (5.7 t/ha) is significantly below the African average (8.6 t/ha) largely due to virus diseases. Observations
Rudolph Rufini Shirima, Everlyne Nafula Wosula, Abdou Azali Hamza, Nobataine Ali Mohammed, Hadji Mouigni, Salima Nouhou, Naima Mmadi Mchinda, Gloria Ceasar, Massoud Amour, Emmanuel Njukwe, James Peter Legg   +10 more
doaj   +2 more sources