scholarly journals First Report of Common Bean (Phaseolus vulgaris) Stem Rot Caused by Colletotrichum spaethianum in China

Plant Disease ◽  
2019 ◽  
Vol 103 (1) ◽  
pp. 151
Author(s):  
L. Yang ◽  
X. H. Lu ◽  
Y. L. Jing ◽  
S. D. Li ◽  
B. M. Wu
2012 ◽  
Vol 18 (2) ◽  
pp. 139-141
Author(s):  
Jin-Hyeuk Kwon ◽  
Dong-Wan Kang ◽  
Youn-Sig Kwak ◽  
Ok-Hee Choi ◽  
Seong-Sook Han

2008 ◽  
Vol 51 (5) ◽  
pp. 883-888 ◽  
Author(s):  
Maria Celeste Gonçalves-Vidigal ◽  
Claudia Thomazella ◽  
Pedro Soares Vidigal Filho ◽  
Marcus Vinícius Kvitschal ◽  
Haroldo Tavares Elias

In 2003 and 2004, 32 isolates of Colletotrichum lindemuthianum obtained from the infected plants of field-grown common bean (Phaseolus vulgaris L.) in Santa Catarina state, Brazil were analyzed based on the virulence to 12 differential cultivars of Phaseolus vulgaris L.. Thirteen distinct races were identified, six of which had not been reported previously in Santa Catarina. This is the first report of the occurrence of 67, 83,101,103,105, and 581 races of C. lindemuthianum. Race 65 was most common (34%). All the isolates were compatible to the cultivars Michelite and Mexico 222. Some isolates infected not only differential cultivar of Mesoamerican origin, but also the ones of Andean origin.


Plant Disease ◽  
2020 ◽  
Vol 104 (9) ◽  
pp. 2516-2516
Author(s):  
J. W. Woodhall ◽  
L. Brown ◽  
M. Harrington ◽  
C. A. Pizolotto ◽  
S. Keith ◽  
...  

Plant Disease ◽  
2018 ◽  
Vol 102 (12) ◽  
pp. 2639-2639 ◽  
Author(s):  
H. Sang ◽  
J. L. Jacobs ◽  
J. Wang ◽  
C. M. Mukankusi ◽  
M. I. Chilvers

Plant Disease ◽  
2020 ◽  
Author(s):  
Luciany Favoreto ◽  
Mauricio Conrado Meyer ◽  
Angélica Calandrelli ◽  
Michele Corpolato Maia Silva ◽  
Santino Aleandro Silva ◽  
...  

Aphelenchoides besseyi is the causal agent of soybean green stem and foliar retention syndrome known as Soja Louca II. This nematode has recently been reported parasitizing cotton in Brazil. In Costa Rica, it causes the symptoms known as “amachamiento” and false angular spots in common bean (Phaseolus vulgaris). Due to the great importance of beans to Brazilian agriculture, the objective of this research was to study the pathogenicity of A. besseyi in common bean under greenhouse conditions, including its endoparasitic relationships by staining root and shoot system tissues with fuchsin acid. In addition, A. besseyi was collected and quantified from shoot systems 30 days after inoculation by washing the tissue in water and blender centrifugal-flotation. We observed the symptoms of “amachamiento”, leaf and vein deformation in the expanded trifoliate leaves, and also leaves with necrotic, brown to reddish and angular lesions, characteristics from false angular spot, and deformed stems characterized by enlargement of nodes, retortions and necrotic lesions. High numbers of nematodes were found inside common bean plants. This is the first report of the pathogenicity and symptoms caused by A. besseyi in common bean in Brazil. These findings are important for development of management strategies to avoid losses on bean cropped in infested areas.


Plant Disease ◽  
2014 ◽  
Vol 98 (9) ◽  
pp. 1241-1247 ◽  
Author(s):  
Yu Pin Li ◽  
Ming Pei You ◽  
Martin J. Barbetti

The occurrence and distribution of Pythium spp. were determined by collecting isolates of Pythium from common bean (Phaseolus vulgaris) plants showing root or hypocotyl disease symptoms from different areas of Western Australia in 2012. Eight different Pythium species (Pythium conidiophorum, P. diclinum, P. intermedium, P. irregulare, P. lutarium, P. mamillatum, P. pachycaule, and P. perplexum) were isolated and identified according to molecular sequences. P. irregulare was the most widespread Pythium sp. All species, except P. perplexum, were pathogenic to the hypocotyl and root of common bean. We believe this is the first report of P. intermedium as a pathogen on common bean worldwide. This is also the first report of P. conidiophorum, P. intermedium, P. lutarium, P. mamillatum, P. pachycaule, and P. diclinum as pathogens on common bean in Australia and the first report of P. irregulare as a pathogen on common bean in Western Australia. P. intermedium was the most pathogenic species, causing the most severe disease on ‘Gourmet Delight’ (percent root disease index [%RDI] 75 ± 2.9 and percent hypocotyl disease index [%HDI] 59.2 ± 3.2) and ‘Pioneer’ (%RDI 75 ± 2.9 and %HDI 65.8 ± 3.2). That the relative susceptibility or resistance (the ability of a plant to reduce the extent of invasion by the pathogen) of a given bean variety to one Pythium sp. was, in general, similar across the other Pythium spp. was an important finding, because this opens up opportunities to utilize a single virulent isolate of one Pythium sp. to identify general resistance to a wider spectrum of Pythium spp.


2009 ◽  
Vol 10 (1) ◽  
pp. 46 ◽  
Author(s):  
Byron Vega ◽  
James S. Beaver ◽  
Consuelo Estévez de Jensen ◽  
James R. Steadman

Bean rust caused by Uromyces appendiculatus (Pers.) Unger is an important disease in common bean (Phaseolus vulgaris L.) worldwide. To our knowledge this is the first report of a new race of U. appendiculatus (19-63) in Puerto Rico and in the western hemisphere. Accepted for publication 4 February 2009. Published 25 March 2009.


Plant Disease ◽  
2020 ◽  
pp. PDIS-03-20-0596
Author(s):  
Rabson M. Mulenga ◽  
Douglas W. Miano ◽  
Evans Kaimoyo ◽  
Juliet Akello ◽  
Felister M. Nzuve ◽  
...  

Plant Disease ◽  
2011 ◽  
Vol 95 (9) ◽  
pp. 1196-1196 ◽  
Author(s):  
N. A. N. Fernandes-Acioli ◽  
R. C. Pereira-Carvalho ◽  
R. S. Fontenele ◽  
C. Lacorte ◽  
S. G. Ribeiro ◽  
...  

Snap and common beans (Phaseolus vulgaris L.) are severely affected by Bean golden mosaic virus (BGMV) infection, so far the only begomovirus reported on these crops in Brazil (1). Samples of snap and common beans colonized by the whitefly Bemisia tabaci biotype B and displaying golden mosaic, chlorotic spots, and leaf distortion were collected in three production regions in Goiás State (Goianápolis, Luziânia, and Itaberaí) between 2003 and 2007. Total DNA extracted from leaf samples was used as template in PCR assays using universal primers targeting conserved regions of the DNA-A and DNA-B genomes (3). Begomovirus-specific amplicons were observed only with DNA template from symptomatic plants. Two single amplicons were observed for both genomic segments, indicating the presence of bipartite species in all samples. Sequence analysis of four isolates (named as GO-176, GO-260, GO-354, and GO-368) obtained from common bean samples indicated identity levels of approximately 95% with the DNA-A segment of BGMV (GenBank Accession No. FJ665283). However, the complete DNA-A sequence (GenBank Accession No. HM357459.1) of the GO-060 isolate (from a symptomatic snap bean plant collected in Goianápolis) displayed 76% identity with BGMV (GenBank Accession No. FJ665283) and 95% identity with the DNA-A of a Sida micrantha mosaic virus (SimMV) isolate (GenBank Accession No. EU908733.1) reported to be infecting okra (Abelmoschus esculentus L.) and 94.8% with a SimMV isolate reported to be infecting soybean (GenBank Accession No. FJ686693) in Brazil (2). Koch's postulates were fulfilled for the isolate GO-060 by inoculating a set of soybean and bean accessions via a biolistic approach. The ratio of positive PCR amplicons per total of inoculated plants were 15 of 16 for snap bean cv. Trepador, 9 of 10 for snap bean cv. Fartura, 18 of 24 for common bean cv. Olate Pinto, and 19 of 25 for common bean cv. Carioca. The isolate was also able to infect eight of nine soybean ‘Doko’ plants. Sequence analysis using symptomatic leaf samples (15 days after inoculation) confirmed SimMV as the causal agent. To our knowledge, this is the first report of a SimMV isolate infecting P. vulgaris. This virus is apparently fast expanding its host range from Malvaceae to Solanaceae species and leguminous hosts after the introduction of B. tabaci biotype B (2). More extensive surveys are necessary to access the current epidemiological importance of SimMV in both snap and common beans in Brazil. References: (1) J.C. Faria and D. P. Maxwell. Phytopathology 89:262, 1999. (2) F. R. Fernandes et al. Arch. Virol. 154:1567, 2009. (3) M. R. Rojas et al. Plant Dis. 77:340, 1993.


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