This study aimed to develop a biocontrol system for ginseng root rot caused by Fusarium cf. incarnatum.

Abstract Infestation by the biotrophic pathogen Gymnosporangium asiaticum can be devastating for plant of family Rosaceae. However, phytopathology this process has not been thoroughly elucidated. Using a metabolomics approach, we discovered intrinsic activities that induce disease symptoms after fungal invasion in terms microbe-induced metabolic responses. Through pathway enrichment and mapping, found host altered its metabolite levels, resulting accumulation tetrose pentose sugar alcohols,...

A newly recognized, late-season leaf disease of Quercus macrocarpa (bur oak) has become increasingly severe across Iowa and in neighboring states since the 1990s. Vein necrosis death may occur over whole crown or only on lower branches. Symptoms typically intensify year-to-year individual trees, there appears to be substantial variation susceptibility. Distinctive conidiomata (pycnothyria with a shield radiating, setae-like hyphae) Tubakia sp. are found along necrotic veins. The same species...

A survey was conducted of the rust fungus Gymnosporangium in Korea. We recollected previously known species, namely asiaticum, G. clavariiforme, globosum, japonicum and yamadae. nidus-avis sabinae are reported for first time from Korea, two new monticola sp. nov. unicorne nov., recognized. Previous single reports miyabei shiraianum could not be confirmed. The LSU rDNA sequenced freshly collected specimens. Phylogenetic analyses show that species form a monophyletic group with strong...

Frommeëlla (Phragmidiaceae, Pucciniales, Basidiomycota), which currently includes two species and is typified by F. tormentillae, causes rust on members of tribe Potentilleae (Rosaceae). The genus has been distinguished from Phragmidium the basis having only one germ pore per teliospore cell rather than or three aecial characters. Phylogenetic analyses both accepted spp. with nLSU rDNA data suggest that was derived within a clade representing Phragmidium. Thus should be considered to later...

Hyun Sook Kim, R.N., Eun Kyoung Choi, Ph.D.*, Tae Hee Hye Young Yun, R.N.,<br /> Ji Jin Ju Hong, Jeong A Geon Ah R.N. and Sung Ha R.N.. J Hosp Palliat Care 2019;22:87-99. https://doi.org/10.14475/kjhpc.2019.22.2.87

An unknown species of Tubakia was collected recently from Quercus mongolica on Seoraksan Mountain, GangWon Province, in Korea. This characterized with cultural, ITS region sequence, and morphological data. After comparison known , this is here described as seoraksanensis sp. nov.

Plants in the genus Malus Mill. are grown temperate regions for fruit crops such as apple and ornamental landscape plants flowering crab apple. Gymnosporangium yamadae Miyabe ex G. Yamada, cause of Japanese rust, is known to attack economically important species Asia. In August 2004 July 2008, aecial stage a rust fungus was observed Wilmington, DE nearby Media, PA on leaves toringo (Malus (Siebold) Siebold de Vriese), cultivated plant native On basis morphological molecular characteristics,...

In May 2012, a stem canker was observed on ~20-year-old giant dogwood (Cornus controversa) in Suwon, Gyeonggi Province, South Korea, which consisted of necrotic lesions bark with orange sporodochial fruiting bodies. A single fungal colony obtained from hyphal tips that were grown out affected tissues plated potato dextrose agar (PDA) acidified 0.1% lactic acid after surface sterilization 1.0% NaOCl for 30 s and 70% ethanol s, incubated at 25°C 7 days the dark. The isolate PDA carnation leaf...

Kudzu (Pueraria montana var. lobata (Willd.) Maesen &amp; S. Almeida) is a weedy, fabaceous vine that native to and widely distributed in Asia where it used for various medicinal purposes such as treating convulsions fever (2). In the United States, especially southeastern states, kudzu has become problematic invasive species overgrows nearly every substrate on which occurs. Thus, biological control strategies controlling this are of great interest (4). From October November 2004, disease...

Bradford pear, Pyrus calleryana Decne., is well known as an ornamental plant for its flowers, leaf color in fall, and disease resistance, making it desirable a street tree. In August October of 2008, the aecial stage Gymnosporangium sabinae (Dicks.) G. Winter was collected from leaves P. Farmington, MI (Oakland County). The one tree had foliage that severely affected by rust fungus. Using published descriptions synonym fuscum, type genus (1-4), Michigan specimen identified confirmed...

A new species, Tubakia koreana ( Diaporthales , Ascomycota ), isolated in Korea from blight symptoms on Quercus leaves, is described and illustrated. The species morphologically distinct other causes a progressive necrotic leaf that differs leafspot caused by species. Phylogenetic analysis of ITS sequences supports monophyletic T. clade independent

A single Japanese walnut (Juglans ailantifolia Carrière, an ornamental, deciduous tree) with symptoms of witches'-brooms and branch dieback, consistent those associated the witches'-broom (WWB) phytoplasma (1), was observed near Ames, IA. No other trees were present in planting numerous black nigra L.) asymptomatic. Leaf samples collected September 2009 from as well two asymptomatic branches tree three each nearby (10 m 100 away, respectively) trees. The presence tested using DNA extracted...

Honckenya peploides (L.) Ehrh. (Caryophyllaceae), commonly known as seabeach sandwort, is a species of special concern in Connecticut (4). Nearly an entire population H. New London County, CT was found to be severely infected by the aecial stage rust fungus June 2008. Representative plants were with aecia on more than 50% leaves. Aecia amphigenous, gregarious, cupulate, pulverulent, yellowish, and erumpent hyaline whitish peridium having lacerate, somewhat recurved margin. Peridial cells...

Abstract Tubakia species are fungi causing leaf spots and blights reported worldwide, mainly in Asia, Europe North America. These diseases often occur on Quercus (oak) trees, which constitute one of the dominant broad‐leaved tree genera world, so forest structure, function dynamics could be affected by infection. However, few data about negative impacts key functional traits available. This study was conducted to investigate changes photosynthetic capacity, morphological, chemical sawtooth...

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem., commonly known as juneberry or Saskatoon serviceberry, was historically a widely used prairie fruit that is native to the Northern Great Plains, southern Yukon and Northwest Territories (4). While an important crop in provinces of Canada, small commercial plantings also occur throughout northern United States (2), including Michigan. On July 18, 2009, severe rust symptoms were observed on plants 2-year-old field A. 'Northline' Northport, MI....

Abstract In 2014, bacterial leaf spots were observed in Mallotus japonicus on the Halla Mountain Jeju Island, South Korea. The infected leaves showed spot symptoms, that is discoloured circular or irregular developing away from edge, rarely limited by veins. causal pathogen was isolated diseased lesions and identified as Pseudomonas amygdali based LOPAT tests multilocus sequence analysis (MLSA) of 16S rRNA, gyrB , rpoB rpoD gene sequences. pathogenicity conducted potted 2‐year‐old M....

A poplar hybrid (Populus alba×glandulosa), which was developed in 1965 by the Korean Institute of Forest Genetics, has been planted widely and used successfully for both hillside afforestation urban landscaping Korea. It is known heterosis with advantages fast growth, resistance to diseases insects, tolerance acid soil. In addition, it phytoremediation soils contaminated heavy metals abandoned mines. September 2006, leaf rust found a plantation at Anyang, Gyeonggi province, Initial symptoms...

Morphological (cyst shape, color, and sizes [length (L), maximum width (W), volume “a” (L/W)]), structural (vulvar cone slope angle [VCSA], surface wrinkle [VCSW], cyst wall thickness, composition, texture) biological characteristics (fecundity, hatching, emergence [number of second-stage juveniles (J2) from a cyst]) in preceding Heterodera glycines (Hg), currently-recorded H. sojae (Hs) trifolii (Ht) were examined by microscopy. Cysts lemon-shaped, indicating the genus is except for Hs...