scholarly journals Induction of post-infection ethylene and its role in resistance of bean (Phaseolus vulgaris) against Colletotrichum lindemuthianum

2011 ◽  
Vol 39 (No. 3) ◽  
pp. 79-87 ◽  
Author(s):  
J. Ombiri ◽  
V. Zinkernagel ◽  
E.M. Gathuru ◽  
O. Achwanya ◽  
A. Lebeda
Keyword(s):  
Phaseolus Vulgaris ◽  
Ethylene Production ◽  
Post Infection ◽  
Colletotrichum Lindemuthianum ◽  
Rapid Decline ◽  
Symptom Development ◽  
Sharp Rise ◽  
Inoculation Techniques ◽  
Moderately Resistant ◽  
Resistant Genotypes

The influence of inoculation techniques on induction of post-infection ethylene production in susceptible and resistant genotypes of bean (Phaseolus vulgaris) inoculated with the kappa race of Colletotrichum lindemuthianum was studied. Three inoculation methods (brushing, dipping and spraying) of excised leaves were compared. The brushing technique caused both the highest ethylene production at 120 h after inoculation, and better symptom development than dipping and spraying. It was, therefore, adopted to determine the post-infection ethylene production in four inoculated bean genotypes (GLP406 and Kaboon – resistant, GLP636 – moderately resistant; and MDRK – susceptible). Ethylene production increased slightly 24 h after inoculation in all four genotypes, followed by a rapid decline after 48 h. Ethylene production remained low until 120 h after which a sharp rise was observed in genotype MDRK. Increased production, though to a lesser extent, was observed in GLP636. This trend was repeatable and thus may offer an additional physiological marker to bean breeders to screen for resistance to C. lindemuthianum.   

A DETACHED LEAF TECHNIQUE FOR SCREENING BEANS (Phaseolus vulgaris L.) IN VITRO AGAINST ANTHRACNOSE (Colletotrichum lindemuthianum)

1986 ◽  
Vol 66 (3) ◽  
pp. 805-809 ◽  
Author(s):  
J. C. TU
Keyword(s):  
Phaseolus Vulgaris ◽  
Colletotrichum Lindemuthianum ◽  
Effective Alternative ◽  
High Humidity ◽  
Symptom Development ◽  
Phaseolus Vulgaris L ◽  
Screening Technique ◽  
Detached Leaf ◽  
Paper Towels

An effective alternative method of screening white beans (Phaseolus vulgaris L.) for anthracnose (Colletotrichum lindemuthianum (Sacc. & Magn.) Briosi & Cav.) resistance was developed using excised leaves or leaflets. The inoculum was brushed on the underside of the excised leaves and leaflets. The inoculated leaves were placed, inoculated side up, on several layers of wet paper towels in a tray which was then covered with a transparent lid or plastic to maintain high humidity. The trays were kept at 22 ± 1 °C with 9 h light daily for 6 d for symptom development. With this method one plant can be assayed several times either for the same race or for different races of the pathogen. The latter is particularly important when resistance to different races involves different genes.Key words: Bean (navy), anthracnose, screening technique

scholarly journals Resistance Sources to Xanthomonas fragariae in Non-octoploid Strawberry Species

HortScience ◽  
2005 ◽  
Vol 40 (6) ◽  
pp. 1653-1656 ◽  
Author(s):  
Shiming Xue ◽  
Robert H. Bors ◽  
Stephen E. Strelkov
Keyword(s):  
Disease Severity ◽  
Hypersensitive Reaction ◽  
Symptom Development ◽  
Sources Of Resistance ◽  
Bacterial Populations ◽  
Resistance Sources ◽  
Inoculation Site ◽  
Xanthomonas Fragariae ◽  
Moderately Resistant ◽  
Resistant Genotypes

Forty-three accessions from 11 strawberry species were screened in the greenhouse for resistance to three strains of Xanthomonas fragariae Kennedy and King. Among the accessions tested, Pen-5 of Fragaria pentaphylla Losink expressed either no symptoms or a hypersensitive reaction, while accessions Pen-2 and Pen-4 developed either no symptoms or restricted water-soaked lesions. Two accessions of F. moschata Duch were characterized by reduced translucency at the inoculation site in the course of symptom development. These accessions, representing three resistance types, were classified as highly resistant, resistant, and moderately resistant, respectively, based on mean separation of disease severity ratings. The classifications proved to be consistent with the results from measurements of bacterial populations on inoculated leaves of those genotypes. The study suggests that species of F. pentaphylla and F. moschata harbour diversified sources of resistance. Resistant genotypes were not detected in F. nilgerrensis Schlect, F. daltoniana J. Gay, F. nubicola Lindl, F. gracilis Losinsk, F. iinumae Makino, F. vesca L., F. viridis Duch, or F. orientalis Losinsk.

Black Violet common bean

2004 ◽  
Vol 84 (1) ◽  
pp. 223-225 ◽  
Author(s):  
Hans-Henning Mündel, Ferdinand A. Kiehn ◽  
Henry C. Huang ◽  
Robert L. Conner ◽  
Gilles Saindon
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Bean Common Mosaic Virus ◽  
Colletotrichum Lindemuthianum ◽  
Research Centre ◽  
Research Station ◽  
Canadian Prairies ◽  
White Mould ◽  
High Yields ◽  
Moderately Resistant

Black Violet is a high-yielding, large-seeded, purple-podded, upright black dry bean (Phaseolus vulgaris L.) cultivar. It was developed at the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, with cooperation from the AAFC Research Station, Morden. Black V iolet is well adapted to the Canadian prairies, with high yields equal to the high-yielding check cultivar, AC Harblack, in narrow rows. Black Violet is moderately resistant to white mould, caused by Sclerotinia sclerotiorum (Lib.) de Bary; resistant to the Delta race and moderately resistant to race 1216 of anthracnose, caused by Colletotrichum lindemuthianum (Sacc. & Magnus) Lams.-Scrib.; and resistant to race 15 of bean common mosaic virus (BCMV). Key words: Common bean, Common bean, Phaseolus vulgaris, black bean, cultivar description, high yielding

scholarly journals Analysis of Pathotypes of Colletotrichum lindemuthianum Found in the Central Region of Mexico and Resistance in Elite Germ Plasm of Phaseolus vulgaris

Plant Disease ◽  
2004 ◽  
Vol 88 (2) ◽  
pp. 152-156 ◽  
Author(s):  
Mario González-Chavira ◽  
Raúl Rodríguez Guerra ◽  
Fernando Hernández-Godínez ◽  
Jorge A. Acosta-Gallegos ◽  
Octavio Martínez de la Vega ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Central Region ◽  
Length Polymorphism ◽  
Genetic Relationship ◽  
Germ Plasm ◽  
Fragment Length Polymorphism ◽  
Colletotrichum Lindemuthianum ◽  
Differential Cultivars ◽  
First Time ◽  
Resistant Genotypes

The pathotypes of 17 isolates of Colletotrichum lindemuthianum from the central region of Mexico were characterized to determine the genetic relationship among isolates from this region and other regions of Mexico, and to evaluate the resistance present in the elite germ plasm collection of Phaseolus vulgaris at INIFAP. Eight pathotypes were identified, including pathotype 292, which is reported for the first time in Mexico. The lack of isolates infecting cultivar TU carrying the Co-5 resistance gene suggests that this cultivar is a useful source of resistance. Six pathotypes produced susceptible reactions on only differential cultivars of Middle American origin, one pathotype on a single cultivar of Andean origin, and one pathotype on cultivars of both Middle American and Andean origin. Comparison of amplified fragment length polymorphism (AFLP) genotypes of 21 isolates confirmed suggestions that populations of C. lindemuthianum are comprised of asexually reproducing clonal lineages. Analysis of five different pathotypes of C. lindemuthianum on 21 elite genotypes of P. vulgaris identified four genotypes from different races of P. vulgaris resistant to all five pathotypes. This information will allow breeders and farmers to select the resistant genotypes most suited to their needs.

Agrinto Pinto Bean

2006 ◽  
Vol 86 (4) ◽  
pp. 1175-1177 ◽  
Author(s):  
H. -H. Mündel ◽  
F. A. Kiehn ◽  
H. C. Huang ◽  
R. L. Conner ◽  
P. Balasubramanian
Keyword(s):  
Phaseolus Vulgaris ◽  
Bacterial Wilt ◽  
Colletotrichum Lindemuthianum ◽  
Research Centre ◽  
Research Station ◽  
Canadian Prairies ◽  
White Mould ◽  
Pinto Bean ◽  
Cultivar Description ◽  
Moderately Resistant

Agrinto is a tall, partially upright pinto bean (Phaseolus vulgaris L.), with s hort vines, average seed weight of 340 mg, which was developed at the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, AB, in collaboration with the AAFC Research Station, Morden, MB. Agrinto is well adapted to wide-row irrigated produ ction of the Canadian prairies, with yields comparable to the check cultivar, Othello. Agrinto is resistant to both yellow and orange strains of the bacterial wilt, caused by Curtobacterium flaccumfasciens pv. flaccumfasciens (Hedges) Collins & Jones. Agrinto is resistant to race 73 of anthracnose [caused by Colletotrichum lindemuthianum (Sacc. & Magnus) Lams.-Scrib] and is moderately resistant to white mould [caused by Sclerotinia sclerotiorum (Lib.) de Bary]. Key words: Phaseolus vulgaris, pinto bean, cultivar description, bacterial wilt resistance, upright

scholarly journals Identification of Phaeoisariopsis griseola pathotypes from five States in Brazil

2002 ◽  
Vol 27 (1) ◽  
pp. 78-81 ◽  
Author(s):  
ALOISIO SARTORATO
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Resistance Genes ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Phaeoisariopsis Griseola ◽  
Moist Chamber ◽  
Differential Cultivars ◽  
Pathogenic Variability ◽  
Resistant Genotypes

Due to the increased importance of angular leaf spot of common bean (Phaseolus vulgaris) in Brazil, monitoring the pathogenic variability of its causal agent (Phaeoisariopsis griseola) is the best strategy for a breeding program aimed at developing resistant genotypes. Fifty one isolates of P. griseola collected in five Brazilian States were tested on a set of 12 international differential cultivars in the greenhouse. When inoculated plants showed symptoms but no sporulation was observed, they were transferred to a moist chamber for approximately 20-24 h. After this period of time, if no sporulation was observed, the plants were considered resistant; otherwise, they were considered susceptible. From the fifty-one tested isolates, seven different pathotypes were identified. No Andean pathotypes were identified; consequently, all isolates were classified as Middle American pathotypes. Pathotype 63-31 was the most widespread. Pathotype 63-63 overcame resistance genes present in all differential cultivars and also the resistance gene(s) present in the cultivar AND 277. This fact has important implications for breeding angular leaf spot resistance in beans, and suggests that searching for new resistance genes to angular leaf spot must be pursued.

scholarly journals The histidine kinase slnCl1 of Colletotrichum lindemuthianum as a pathogenicity factor against Phaseolus vulgaris L

2019 ◽  
Vol 219 ◽  
pp. 110-122 ◽  
Author(s):  
Guilherme Bicalho Nogueira ◽  
Leandro Vieira dos Santos ◽  
Casley Borges de Queiroz ◽  
Thamy Lívia Ribeiro Corrêa ◽  
Renato Pedrozo Menicucci ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Histidine Kinase ◽  
Colletotrichum Lindemuthianum ◽  
Phaseolus Vulgaris L ◽  
Pathogenicity Factor

scholarly journals Avaliação da produtividade de linhagens de feijoeiro resistentes ao fungo da antracnose

Bragantia ◽  
1982 ◽  
Vol 41 (1) ◽  
pp. 67-79 ◽  
Author(s):  
Antonio Sidney Pompeu
Keyword(s):  
Phaseolus Vulgaris ◽  
Colletotrichum Lindemuthianum

A capacidade produtiva de linhagens de feijoeiro (Phaseolus vulgaris) resistentes ao fungo da antracnose (Colletotrichum lindemuthianum) pertencentes aos grupos Preto, Chumbinho e Diversas, foi estimada em experimentos em blocos ao acaso, instalados em Campinas, no cultivo das águas de 1977, 1978 e 1979. Utilizaram-se os cultivares Moruna, Aroana e Carioca como controles para as linhagens dos grupos Preto, Chumbinho e Diversos respectivamente. Pela análise estatística dos dados obtidos pelas linhagens do grupo Preto, comuns aos ensaios de 1977 e 1978, 1978 e 1979, observou-se que as de prefixos 5-9-4-3-1-4, 5-9-4-3-1-5, 18-1-6 e 5-9-4-3-1-6, com médias de 2.100, 2.079, 2.055 e 2.028kg/ha, foram superiores ao 'Moruna', que produziu 1.580kg/ha. No grupo Chumbinho, cujas linhagens foram avaliadas em 1978 e 1979, a de prefixo 5-1-1-5-1-9, com 2.336kg/ha, destacou-se das demais, embora esta produtividade média estivesse ao mesmo nível, estatisticamente, da verificada para o 'Aroana', 2.136kg/ha. Para as linhagens do grupo Diversos, estudadas em 1978 e 1979, apenas 10-3-1 e 10-6-2, com produções médias de 3.133 e 2.823kg/ha, foram superiores, respectivamente, a 2.375 e 2.355kg/ha, observadas para o 'Carioca'. Outras linhagens deste grupo tiveram médias acima do controle, como 10-9-2, 10-9-1 e 10-5-1, com 2.698, 2.686 e 2.649kg/ha (Carioca - 2.355kg/ha) na ausência do patógeno. Nas análises conjuntas foram notados efeitos significativos para ano em onze dos doze grupos de experimentos e em apenas dois para a interação tratamento x ano. As melhores linhagens serão colocadas nos ensaios regionais e algumas terão suas sementes aumentadas e colocadas à disposição dos agricultores da região de Campinas.

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