gen. et sp. nov. (Nectriaceae) Pathogenic to Native (Lauraceae) Trees in Southeastern China.

The ascomycete family Nectriaceae includes soil-borne saprobes, plant pathogens and human pathogens, biodegraders, and biocontrol agents for industrial and commercial applications. is a native tree species that is widely planted in southern China for landscaping purposes. During a routine survey of diseases in southern China, disease spots were frequently observed on the leaves of trees planted close to .

Distribution patterns of (Ascomycota, Sordariomycetes, Hypocreales, Nectriaceae) species complexes related to diseased leaves and soil habitats during leaf blight outbreak season in plantations in southern China.

Calonectria leaf blight caused by species is one of the most important diseases associated with plantations in Asia and South America. This study aimed to clarify the distribution patterns of species residing in different species complexes associated with diseased trees and soils during leaf blight outbreak season in plantations in southern China. In this study, 482 isolates obtained from diseased trees and soils under these trees in eight sampling sites in three provinces were identified by DNA sequence analyses of , , , and gene regions.

High genetic diversity and limited regional population differentiation in populations of from plantations.

causes a serious and widespread disease known as Calonectria leaf blight in plantations of southern China. Little is known regarding the population biology or reproductive biology of this pathogen in the affected areas. The aims of this study were to investigate the genetic diversity, population structure and the reproductive mode of from affected plantations of southern China.

Diversity of Calonectria species from leaves and soils in diseased southern China Eucalyptus plantation.

Calonectria leaf blight (CLB) is one of the best-known diseases of Eucalyptus spp., particularly in Asia and South America. Recently, typical symptoms of leaf and shoot blight caused by Calonectria spp.

Wide Distribution of and Associated with Diseased Leaves in Plantations in Southern China.

Species of and represent over 40% of the fungi identified on eucalypt leaves worldwide. These include some important pathogens that mainly cause leaf blight and spot, and result in increasingly negative impacts on global commercial eucalypt industries. plantations are commonly cultivated in southern China for solid wood and pulp products.

Evidence of High Genetic Diversity and Differences in the Population Diversity of the Eucalyptus Leaf Blight Pathogen from Diseased Leaves and Soil in a Plantation in Guangxi, China.

is an important causal agent of leaf blight in southern China. This pathogen causes tree disease across numerous regions in southern China. In addition to diseased leaves, has occasionally been isolated from soil in plantations.

Wide Distribution and Intraspecies Diversity in the Pathogenicity of in Soil from Plantations in Southern Guangxi of China.

spp. are extensively cultivated in southern China because of their adaptability and versatile timber production. leaf blight caused by species is considered a major threat to trees planted in China.

Identification and pathogenicity of species (Cryphonectriaceae, Diaporthales) on species in Southern China.

The family of Cryphonectriaceae (Diaporthales) contains many important tree pathogens and the hosts are wide-ranging. Tree species of were widely planted as ornamental trees alongside city roads and villages in southern China. Recently, stem canker and cracked bark were observed on 2-6 year old and in several nurseries in Zhanjiang City, Guangdong Province, China.

Characterization of Species from Diseased Plantation-Grown , spp., and in Southern China.

Fungi from () have been reported as pathogens, endophytes, or saprophytes from various woody plants in different countries. Recently, isolates were obtained from the dead twigs of , spp., , and in Guangdong, Guangxi, Hainan, and Fujian Provinces in southern China.

Diversity and Distribution of Species in Soils from × . , , and Plantations in Four Provinces in Southern China.

The species of include many notorious plant pathogens and are widely distributed around the world. Leaf blight caused by species is considered one of the most prominent diseases in plantations in China. Some species isolated from soils in plantations are highly pathogenic to inoculated genotypes.

Soil-borne (Hypocreales, Nectriaceae) associated with plantations in Colombia.

spp. are widely planted in Colombia as an important component of a growing paper and pulp industry. Leaf and shoot blight caused by spp.

Phylogeny, Morphology, Distribution, and Pathogenicity of Seven Species from Leaf-Blighted in HaiNan Island, China.

Leaf blight caused by species constrains trees in China. Calonectria leaf disease on in China was first reported in HaiNan Island in 1985. No systematic investigation of species associated with diseased in HaiNan has been performed.

Diversity and Distribution of Species from Plantation and Forest Soils in Fujian Province, China.

To meet the growing demand for wood and pulp products, Eucalyptus plantations have expanded rapidly during the past two decades, becoming an integral part of the southern China landscape. Leaf blight caused by various Calonectria spp., is a serious threat to these plantations.

: Causal Agent of Leaf Blight in Southern China.

Calonectria leaf blight caused by spp. is among the most serious diseases affecting the health and sustainability of plantations in southern China. Recent outbreaks of this disease in GuangDong Province prompted a need to identify the species involved.

Comparison of Hyphal Fragments and Spores to Evaluate the Pathogenicity of the Leaf and Shoot Pathogen .

The genus includes many aggressive plant-pathogenic species with a worldwide distribution. Calonectria leaf blight is one of the most prominent diseases of trees in Southeast Asian and South American plantations. Inoculation trials to evaluate pathogenicity of spp.

Calonectria in the age of genes and genomes: Towards understanding an important but relatively unknown group of pathogens.

The genus Calonectria includes many aggressive plant pathogens causing diseases on various agricultural crops as well as forestry and ornamental tree species. Some species have been accidentally introduced into new environments via international trade of putatively asymptomatic plant germplasm or contaminated soil, resulting in significant economic losses. This review provides an overview of the taxonomy, population biology, and pathology of Calonectria species, specifically emerging from contemporary studies that have relied on DNA-based technologies.

Species Diversity and Distribution Characteristics of in Five Soil Layers in a Plantation.

The genus includes pathogens of various agricultural, horticultural, and forestry crops. Species of are commonly collected from soils, fruits, leaves, stems, and roots. Some species of isolated from soils are considered as important plant pathogens.

Population Diversity and Genetic Structure Reveal Patterns of Host Association and Anthropogenic Impact for the Globally Important Fungal Tree Pathogen .

Species in the complex are important fungal pathogens of plantation trees globally. The most important hosts include species of , , , and . Despite their relevance and widespread occurrence, little is known regarding their population genetics and how this might relate to their host associations or geographic regions in which they occur.

Cryphonectriaceae associated with rust-infected in Hawaii.

(Myrtales, Myrtaceae) trees in Hawaii are severely affected by a rust disease caused by (Pucciniales, Sphaerophragmiaceae), but they are commonly co-infected with species of Cryphonectriaceae (Diaporthales). In this study, and other trees in the Myrtales were examined on three Hawaiian Islands for the presence of Cryphonectriaceae. Bark samples with fruiting bodies were collected from infected trees and fungi were isolated directly from these structures.

Species Diversity, Mating Strategy and Pathogenicity of Species from Diseased Leaves and Soils in the Plantation in Southern China.

Many species are causal agents of diseases on several forestry, agricultural and horticultural crops. leaf blight is one of the most important diseases associated with plantations and nurseries in Asia and South America. Recently, symptoms of leaf rot and leaf blight caused by species were observed in a one-year-old experimental plantation in GuangXi Province, southern China.

Global Genetic Diversity and Mating Type Distribution of : An Important Wide-Host-Range Plant Pathogen.

The fungal pathogen, , has caused serious diseases of many important plants worldwide. Understanding the genetic diversity and mating type distribution of this pathogen provides an essential step toward the development of disease control measures. In this study, we designed 15 polymorphic microsatellite markers by using genome sequences of two isolates having opposite mating type and from different countries.

Variation in from plantations in YunNan Province in southwestern China across a climatic gradient.

The accommodates many important pathogens of woody plants, including . Recently, were isolated from diseased plant parts from surveys of plantations in the YunNan Province, China. The aims of this study were to identify these isolates and to evaluate their pathogenicity to .

Novel species of from naturally-occurring forest trees in Greece and South Africa.

species are wood-infecting, filamentous ascomycetes that occur in fresh wounds on a wide variety of tree species. These fungi are mainly known as saprobes although some have been associated with disease symptoms. Six fungal isolates with typical culture characteristics of spp.

Draft genome sequences of five species from plantations in China, , and .

Draft genome sequences of five species [including , , , and ], , and are presented. Species of are the causal agents of Eucalyptus leaf blight disease, threatening the growth and sustainability of plantations in China. is the causal agent of stem canker in native and exotic in South Africa.