Cassava Bacterial Blight: A Manageable Disease

Lozano, J. C.

doi:10.1094/pd-70-1089

Cited by 108 publications

(96 citation statements)

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“…The epiphytical survival of Xam on weeds is in concordance with the previous reports of Daniel and Boher (1978), Persley (1978), Elango and Lozano (1981), Daniel and Boher (1985a), Daniel and Boher (1985b), Lozano (1986), Boher and Verdier (1994) and Fanou et al ( , 2001) who reported that Xam has an epiphytical phase on cassava plants or/and on weeds.…”

Section: Discussion:-supporting

confidence: 91%

Survival of Xanthomonas Axonopodis Pv. Manihotis in Weed Species and in Cassava Debris : Implication in the Epidemiology of Cassava Bacterial Blight.

Antoine¹,

Valerien²,

Kerstin³

2017

IJAR

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Section: Discussion:-supporting

confidence: 91%

Survival of Xanthomonas Axonopodis Pv. Manihotis in Weed Species and in Cassava Debris : Implication in the Epidemiology of Cassava Bacterial Blight.

Antoine¹,

Valerien²,

Kerstin³

2017

IJAR

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“…The pathogen then penetrates vascular tissues in stems as the disease progresses, from where it invades the whole plant (Lozano 1986). Pathogen multiplication, and the attendant production of bacterial slime, blocks vascular tissues, leading to leaf wilt, production of exudates, and dieback.…”

Section: Introductionmentioning

confidence: 99%

“…Because cassava is vegetatively propagated, planting materials form another significant vehicle for disease dissemination ). The use of disease-free planting materials and adoption of appropriate cultural practices have been suggested as ways of reducing disease incidence and crop loss (Lozano 1986). However, these disease control measures have not been fully adopted in traditional cassava-producing regions, making host-plant resistance the preferred method of control ).…”

Section: Introductionmentioning

confidence: 99%

Genetic mapping of resistance to bacterial blight disease in cassava (Manihot esculenta Crantz)

Jorge¹,

Fregene²,

Duque³

et al. 2000

Theor Appl Genet

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Cassava bacterial blight (CBB), caused by Xanthoinonas axonopodis pv. manihotis (Xam), is a major disease of cassava (Manihot esculenta Crantz) in Africa and South America. Planting resistant varieties is the preferred method of disease control. Recent genetic mapping of an F, cross (TMS 30572 x CM 2177-2) led to the construction of the first molecular genetic map of cassava. To better understand the genetics of resistance to CBB, we evaluated individuals of the F, cross for CBB resistance by controlled greenhouse inoculations and visually assessed symptoms on days 7, 15, and 30 days after inoculation, using a scale where O = no disease and 5 = maximum susceptibility. Five Xam strains were used: CIO-84, CIO-1, CIO-136, CIO-295, and ORST X-27. Area under the disease progress curve (AUDPC) was used as a quantitative measure of resistance in QTL analysis by single-marker regression. Based on the AUDPC values, eight QTLs (quantitative trait loci), located on linkage groups B, D, L, N, and X of the femalederived framework map, were found to explain 9-20% of the phenotypic variance of the crop's response to the five Xain strains. With the male-derived framework map, four QTLs on linkage groups G and C explained 10.7-27.1% of the variance. A scheme to confirm the usefulness of these markers in evaluating segregating populations for resistance to CBB is proposed.

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“…A mandioca é uma cultura de elevado interesse econômico mundial, por sua ampla utilização na agropecuária, grande adaptação a condições edafoclimáticas, e pela produção de fécula por unidade de área; além disso, tem um importante papel & Booth, 1974;Daniel & Boher, 1978;Dedal et al, 1980;Elango & Lozano, 1981;Daniel & Boher, 1982;Lozano, 1986).…”

Section: Introductionunclassified

Sobrevivência de Xanthomonas axonopodis pv. manihotis em manipueira sob condições ambientais

Theodoro

Maringoni

2002

Pesq. agropec. bras.

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Termos para indexação: bactéria, incubação, pH, acidez, resíduo. Survival of Xanthomonas axonopodis pv. manihotis in manipueira under environmental conditionsAbstract The objective of this work was to evaluate the survival of a Xanthomonas axonopodis pv. manihotis (Xam) strain, resistant to streptomycin sulfate, in manipueira (cassava residue) incubated under environmental conditions, in three periods of the year (March, July and October 2000). A semi-selective culture medium and the polymerase chain reaction (PCR) or biological amplification (BIO-PCR) methods were used. The pH and the total acidity of the manipueira were determined during the incubation period. The strain survived less than 24 hours in the three periods of the year. The PCR or BIO-PCR method was not effective in monitoring the strain survival in manipueira , as it showed contradictory and unreliable results. An increase in total acidity and a decrease in pH of the manipueira were observed, explaining the survival behavior of Xam strain.

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Cassava Bacterial Blight: A Manageable Disease

Cited by 108 publications

References 0 publications

Survival of Xanthomonas Axonopodis Pv. Manihotis in Weed Species and in Cassava Debris : Implication in the Epidemiology of Cassava Bacterial Blight.

Survival of Xanthomonas Axonopodis Pv. Manihotis in Weed Species and in Cassava Debris : Implication in the Epidemiology of Cassava Bacterial Blight.

Genetic mapping of resistance to bacterial blight disease in cassava (Manihot esculenta Crantz)

Sobrevivência de Xanthomonas axonopodis pv. manihotis em manipueira sob condições ambientais

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