musa balbisiana/necrose

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Development of a transformation system for Mycosphaerella pathogens of banana: a tool for the study of host/pathogen interactions.

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A genetic transformation system has been developed for three Mycosphaerella pathogens of banana and plantain (Musa spp.). Mycosphaerella fijiensis and Mycosphaerella musicola, the causal agents of black and yellow Sigatoka, respectively, and Mycosphaerella eumusae, which causes Septoria leaf spot of

Elaboration of an Early Quantification Method of Quiescent Infections of Colletotrichum musae on Bananas.

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Colletotrichum musae, the causal agent of banana anthracnose, forms quiescent infections on the surface of the fruit that lead to necrosis at maturity. This work was conducted to determine a practical way to quantify the inoculum level that is economically practicable for routine use and applicable

First Report of Banana Streak Virus Infecting Banana Cultivars (Musa spp.) in Taiwan.

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Banana (Musa sapientam L.) is an economically important crop for both export and local consumption in Taiwan. Recently, leaf symptoms characteristic of banana streak disease (1) were found on banana cv. Mysore (AAB group) introduced from Australia in the germ plasm collection of the Taiwan Banana

Assessing Potato Cultivar Sensitivity to Tuber Necrosis Caused by Tobacco rattle virus.

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Tobacco rattle virus (TRV) causes the economically important corky ring spot disease in potato. Chemical control is difficult due to the soilborne nature of the TRV-transmitting nematode vector, and identifying natural host resistance against TRV is considered to be the optimal control measure. The

Preventive activity of banana peel polyphenols on CCl4-induced experimental hepatic injury in Kunming mice.

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The aim of the present study was to evaluate the preventive effects of banana peel polyphenols (BPPs) against hepatic injury. Mice were divide into normal, control, 100 mg/kg and 200 mg/kg banana peel polyphenol and silymarin groups. All the mice except normal mice were induced with hepatic damage

First Outbreak of Banana Streak Badnavirus Infection in Commercial Export Bananas in Costa Rica.

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Banana streak badnavirus (BSV) is the most widely occurring virus in banana and plantain (1) but has not been reported to be a significant problem in commercial export bananas. In early 1999, the first severe outbreak of BSV infection in commercial export bananas (Musa AAA cv. Grand Nain) was

Induction of Ced9 mediated anti-apoptosis in commercial banana cultivar Rasthali for stable resistance against Fusarium wilt

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Anti-apoptotic gene Ced-9 enhanced resistance against Fusarium oxysporum f. sp. cubense (Foc) in the susceptible banana cultivar Rasthali by arresting tissue necrosis. The embryogenic cell suspension of banana cultivar Rasthali was stably transformed with Ced-9 gene and transformed

Identification of a major pathogenicity determinant and suppressors of RNA silencing encoded by a South Pacific isolate of Banana bunchy top virus originating from Pakistan.

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Five genes encoded by Banana bunchy top virus (BBTV) originating from Pakistan were expressed in Nicotiana benthamiana using a Potato virus X (PVX) vector. Expression of the master replication-associated protein (mRep) and movement protein (MP) resulted in necrotic cell death of inoculated tissues,

Aggressiveness and Damage Potential of Central American and Caribbean Populations of Radopholus spp. in Banana.

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Monoxenic cultures of burrowing nematode populations extracted from banana roots from Belize, Guatemala, Honduras, and Costa Rica were established on carrot discs. Cultures of Radopholus spp. were also obtained from Florida, Puerto Rico, Dominican Republic, and Ivory Coast. The aggressiveness

Development and Evaluation of a Standard Method for Screening for Resistance to Radopholus similis in Bananas.

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The description and evaluation of a standard assay method for screening for resistance of bananas to the burrowing nematode (Radopholus similis) under greenhouse conditions is presented. Seven banana genotypes, ranging from susceptible to resistant, were used to evaluate the method. Banana plants

Banana Die-Back Virus - a New Virus Infecting Banana in Nigeria.

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Two viruses naturally infect Musa in Nigeria: banana streak badnavirus (BSV) and cucumber mosaic cucumovirus (CMV). During a recent field survey at Ibadan (Nigeria), some severely stunted banana plants (cv. Valery) were found that tested negative for CMV, banana bunchy-top virus, and BSV. The plants

The in vitro secretome of Mycosphaerella fijiensis induces cell death in banana leaves.

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The hemibiotrophic filamentous fungus Mycosphaerella fijiensis causes the banana foliar disease known as black Sigatoka, responsible for major worldwide losses in the banana fruit industry. In this work the in vitro secretome of M. fijiensis was characterized. Native and denaturant polyacrylamide

Musa acuminata (Del Monte banana) lectin is a fructose-binding lectin with cytokine-inducing activity.

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A homodimeric, fructose-binding lectin was isolated from Del Monte bananas by using a protocol that involved ion-exchange chromatography on DEAE-cellulose and SP-Sepharose, and gel filtration by fast protein liquid chromatography on Superdex 75. Not only fructose, but also glucose, mannose, rhamnose

Isolation and characterization of a novel banana rhizosphere bacterium as fungal antagonist and microbial adjuvant in micropropagation of banana.

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OBJECTIVE Isolation and characterization of a bacterial isolate (strain FP10) from banana rhizosphere with innate potential as fungal antagonist and microbial adjuvant in micropropagation of banana. RESULTS Bacterium FP10 was isolated from the banana rhizosphere and identified as Pseudomonas

Mycosphaerella fijiensis, the black leaf streak pathogen of banana: progress towards understanding pathogen biology and detection, disease development, and the challenges of control.

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BACKGROUND Banana (Musa spp.) is grown throughout the tropical and subtropical regions of the world. The fruits are a key staple food in many developing countries and a source of income for subsistence farmers. Bananas are also a major, multibillion-dollar export commodity for consumption primarily

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