Cacao families and parents selected as resistant to natural infection of Moniliophthora perniciosa
نویسندگان
چکیده
منابع مشابه
Expression analysis of transcription factors from the interaction between cacao and Moniliophthora perniciosa (Tricholomataceae).
Cacao (Theobroma cacao) is one of the most important tropical crops; however, production is threatened by numerous pathogens, including the hemibiotrophic fungus Moniliophthora perniciosa, which causes witches' broom disease. To understand the mechanisms that lead to the development of this disease in cacao, we focused our attention on cacao transcription factors (TFs), which act as master regu...
متن کاملNecrotrophic phase of Moniliophthora perniciosa causes salicylic acid accumulation in infected stems of cacao
Moniliophthora perniciosa infects young meristematic tissue of Theobroma cacao and induces abnormal shoot development and ultimately necrosis. We analyzed culture filtrates of M. perniciosa to identify metabolites with possible effects on witches’ broom disease symptom development. All isolates produced salicylic acid (SA), phenyllactic acid and mandelic acid. When SA levels were measured in pl...
متن کاملThe hemibiotrophic cacao pathogen Moniliophthora perniciosa depends on a mitochondrial alternative oxidase for biotrophic development
The tropical pathogen Moniliophthora perniciosa causes witches' broom disease in cacao. As a hemibiotrophic fungus, it initially colonizes the living host tissues (biotrophic phase), and later grows over the dead plant (necrotrophic phase). Little is known about the mechanisms that promote these distinct fungal phases or mediate the transition between them. An alternative oxidase gene (Mp-aox) ...
متن کاملComparative analysis of expressed genes from cacao meristems infected by Moniliophthora perniciosa.
BACKGROUND AND AIMS Witches' broom disease is caused by the hemibiotrophic basidiomycete Moniliophthora perniciosa, and is one of the most important diseases of cacao in the western hemisphere. Because very little is known about the global process of such disease development, expressed sequence tags (ESTs) were used to identify genes expressed during the Theobroma cacao-Moniliophthora pernicios...
متن کاملEndophytic and pathogenic isolates of the cacao fungal pathogen Moniliophthora perniciosa (Tricholomataceae) are indistinguishable based on genetic and physiological analysis.
We evaluated the genetic and physiological variability of Moniliophthora perniciosa obtained from healthy and diseased branches of cacao (Theobroma cacao) plants. The diversity of the isolates was evaluated by RAPD technique and by studies of virulence and exoenzyme production. The genetic variability of endophytic and pathogenic M. perniciosa was evaluated in association with pathogenicity ass...
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ژورنال
عنوان ژورنال: Crop Breeding and Applied Biotechnology
سال: 2016
ISSN: 1984-7033
DOI: 10.1590/1984-70332016v16n2a21