Taxonomic and phylogenic appraisal of a novel species and a new record of Stictidaceae from coffee in Yunnan Province, China

Phytotaxa ◽  
2021 ◽  
Vol 528 (2) ◽  
pp. 111-124
Author(s):  
LI LU ◽  
SAOWALUCK TIBPROMMA ◽  
SAMANTHA KARUNARATHNA ◽  
VINODHINI THIYAGARAJA ◽  
JIANCHU XU ◽  
...  

Coffee, an important economic crop, is often threatened by fungal infections. During a survey of coffee fungi in Yunnan Province, China, two saprobic Stictidaceae species were collected. Maximum likelihood (ML) and Bayesian posterior probability of combined LSU, ITS and mtSSU genes supported the placement of our fungal collections within Fitzroyomyces and Ostropomyces with high statistical support. A new species, Fitzroyomyces yunnanensis sp. nov. and a new record, Ostropomyces pruinosellus are introduced. These two species were recorded on coffee wood in sexual and asexual states, respectively. Their taxonomic placements were further supported by detailed morphological and phylogenetic comparisons of allied taxa.

Zootaxa ◽  
2019 ◽  
Vol 4551 (4) ◽  
pp. 494
Author(s):  
JING SUN ◽  
YALIN ZHANG ◽  
LIN LU

A new species, Balclutha longispina sp. nov. from Yunnan Province of China, is described and Balclutha sinuata Webb & Vilbaste is recored from China (Tibet) for the first time. A key to males of Chinese Balclutha species is provided. 


Phytotaxa ◽  
2018 ◽  
Vol 376 (1) ◽  
pp. 27
Author(s):  
HAI-XIA MA ◽  
JUN-ZHI QIU ◽  
BIAO XU ◽  
YU LI

Two specimens of Hypoxylon were collected from Yunnan, southwestern China. Hypoxylon baihualingense, an undescribed species of Hypoxylon (Xylariales, Hypoxylaceae), is described and illustrated as a new species based on a combination of morphological and phylogenetic (ITS and β-tubulin sequences) data. The new species is characterized by its glomerate to pulvinate stromata with ostiolar discs and asci lacking an apical apparatus. The differences between the new species and some morphologically similar Hypoxylon species are discussed. Hypoxylon polyporoideum is reported as a new record from China.


Plant Disease ◽  
2019 ◽  
Vol 103 (7) ◽  
pp. 1721-1727 ◽  
Author(s):  
Shan Zhong ◽  
Jing Zhang ◽  
Guo-Zhen Zhang

Paris polyphylla is an important perennial medicinal plant in China. A disease similar to gray mold on P. polyphylla occurred at the seedling stage in March 2016 and 2017 in Tengchong city, Yunnan Province of China. The disease resulted in up to 50% mortality in serious cases. Isolates from diseased plants grew 10.6 mm/day at 20°C on PDA. After 21 days, sclerotia were spherical to elliptical (0.4–2.5 × 0.3–1.8 mm). Conidia from diseased tissues were hyaline to pale brown, long, ovoid, unicellular, and measured 15.1–24.5 × 8.8–13.4 μm; conidiophores were 526–1,064 ×12–15 μm. Isolates did not form conidiophores or conidia on PDA or MYA. A phylogenetic analysis based on G3PDH, RPB2, and HSP60 sequence data supported assignment of three representative isolates as a new species of Botrytis. Based on morphological, phylogenetic characteristics and Koch’s Postulates, the causal agent of gray mold on P. polyphylla was identified as a novel species, Botrytis polyphyllae.


Zootaxa ◽  
2006 ◽  
Vol 1124 (1) ◽  
pp. 41 ◽  
Author(s):  
JUNHAO HUANG ◽  
RUNZHI ZHANG ◽  
FRANK W. PELSUE JR.

Watanabesaruzo yunnanensis sp. nov. is described from Yunnan Province, China. It is a peculiar species of Watanabesaruzo Yoshitake et Yamauchi and represents a new record for the genus in China. The genus Watanabesaruzo was erected by Yoshitake and Yamauchi (2002) based on two species, W. taimeii and W. malayanus. A key to the three species is presented. The type specimen is deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing, China.


Phytotaxa ◽  
2018 ◽  
Vol 356 (3) ◽  
pp. 199 ◽  
Author(s):  
QIN YANG ◽  
ZHUO DU ◽  
YING-MEI LIANG ◽  
CHENG-MING TIAN

Nectria is a wood-inhabiting genus of fungi commonly found in temperate regions of the northern hemisphere, where they are associated with dieback and canker diseases of numerous woody plant hosts. In this study, fungal isolates were collected from 2012 to 2017 from diseased branches or twigs of 19 different host species in China and identified. Their morphological characteristics and multi-locus phylogeny (act, ITS, LSU, rpb2, tef1, and tub2) indicated four distinct lineages with high statistical support, corresponding to four species of Nectria: N. balansae, N. dematiosa, N. pseudotrichia, and N. ulmicola sp. nov. The last is characterized by yellow to orange, or sometimes dark brown, sporodochial conidiomata, which are sessile, and by unbranched or bifurcate conidiophores. This study has clarified the taxonomy of Nectria species associated with canker and dieback symptoms in China.


ZooKeys ◽  
2021 ◽  
Vol 1009 ◽  
pp. 29-43
Author(s):  
Yuan Xu ◽  
Wenxuan Bi ◽  
Hongbin Liang

After a century since the erection of the genus Manipuria from India, its type species M. dohertyi Jacoby was discovered in Yunnan Province of China. A new Manipuria species, M. yuaesp. nov., is described from Tibet and Yunnan, China. The new species differs from M. dohertyi by its larger size, unicolored elytra, and absence of a tooth-like prolongation in front of the mandible. Additional data is provided for M. dohertyi based on new material from China.


MycoKeys ◽  
2021 ◽  
Vol 82 ◽  
pp. 57-79
Author(s):  
Guang-Cong Ren ◽  
Dhanushka N. Wanasinghe ◽  
Jutamart Monkai ◽  
Peter E. Mortimer ◽  
Kevin D. Hyde ◽  
...  

During our survey of the diversity of woody litter fungi in China and Thailand, three Hermatomyces species were collected from dead woody twigs of Dipterocarpus sp. (Dipterocarpaceae) and Ehretia acuminata (Boraginaceae). Both morphology and multigene analyses revealed two taxa as new species (Hermatomyces turbinatus and H. jinghaensis) and the remaining collections as new records of H. sphaericus. Hermatomyces turbinatus is characterized by 1) dimorphic conidia, having circular to oval lenticular conidia and 2) turbinate conidia consisting of two columns with two septa composed of 2–3 cells in each column. Hermatomyces jinghaensis is characterized by dimorphic conidia, having circular to oval lenticular conidia and clavate or subcylindrical to cylindrical conidia and consisting of one or two columns with 6–8 cells in each column. Phylogenetic analyses of combined LSU, ITS, tub2, tef1-α and rpb2 sequence data supports the placement of these new taxa within Hermatomycetaceae with high statistical support.


Phytotaxa ◽  
2021 ◽  
Vol 500 (4) ◽  
pp. 275-284
Author(s):  
MING-KAI PENG ◽  
BO ZHANG ◽  
ZHI QU ◽  
YU LI ◽  
HAI-XIA MA

The genus Allodiatrype (Diatrypaceae, Xylariales) is reported for the first time collected in Taiyang River National Forest Park, Yunnan Province. An undescribed Allodiatrype species is described and illustrated as a new species based on a combination of morphological characteristics and sequences data of ITS, SSU and TUB2. The new species is characterized by its Y-shaped or cruciate-shaped ostiolar surface, yellowish-green to the green inner layer, and hyaline, ellipsoidal to cylindrical or elongate-allantoid ascospores. The differences between the new species and the related fungi are discussed.


Zootaxa ◽  
2021 ◽  
Vol 5032 (2) ◽  
pp. 195-215
Author(s):  
SAMUEL GÓMEZ ◽  
FATEMEH NAZARI

Early studies during the 1990’s supported a close relationship between the genera Paralaophonte and Loureirophonte. Subsequent studies carried out during the first decade of the 2000’s suggested the monophyly of the latter and that it could be nested within Paralaophonte, rendering the latter paraphyletic. However, efforts to synonymize these two genera were hampered by the lack of phylogenetic analyses at the species level. Here we describe a new species of Paralaophonte from north-western Mexico, P. ullama sp. nov., and we formally synonymize Loureirophonte with Paralaophonte for which we propose two monophyletic subgenera, Pa. (Paralaophonte) and Pa. (Loureirophonte).                 The detection of the species most closely related to P. ullama sp. nov. is controversial. Our Bayesian analysis indicates that the new species might be related to Pa. (Pa.) gurneyi, and to Pa. (Pa.) ormieresi and Pa. (Pa.) septemarticulata, with which they form a larger clade supported by a very low Bayesian Posterior Probability value. However, the precise nature of the relationship between the new species and Pa. (Pa.) gurneyi is hampered by the gap in our knowledge of the armature formulae of the swimming legs of the latter, and by the lack of the male of the new species. On the other hand, the new species share several characters with Pa. (Pa.) problematica, Pa. (Pa.) pacificavicinum, Pa. (Pa.) pacificaemulator, and Pa. (Pa.) pacifica, with which it might be related. Our Bayesian analysis of forty-two morphological characters at the species level confirmed earlier suspicions about the relationships between Paralaophonte and Loureirophonte, the latter being nested within the former, and showed the monophyly of the Paralaophonte-Loureirophonte clade with high Bayesian Posterior Probability value, thus confirming the synonymy of these genera. The Paralaophonte-Loureirophonte clade is defined by the synapomorphic dimorphism in the second endopodal segment of the second swimming leg of the male. We did not detect any (aut)apomorphy for Pa. (Paralaophonte). Paralaophonte (Loureirophonte) is defined by the presence of one seta only on the second endopodal segment of the second swimming leg, and the one-segmented endopod of the fourth swimming leg.  


Phytotaxa ◽  
2017 ◽  
Vol 324 (1) ◽  
pp. 73 ◽  
Author(s):  
DANUSHKA S. TENNAKOON ◽  
RUNGTIWA PHOOKAMSAK ◽  
DHANUSHKA N. WANASINGHE ◽  
JUN-BO YANG ◽  
SAISAMORN LUMYONG ◽  
...  

Plenodomus species were collected from Tamarindus indica L. (Fabaceae) and Plukenetia volubilis L. (Euphorbiaceae) in Yunnan Province, China and subjected to morphological and molecular analysis. Morphologically novel collections comprise unique characters in having mucilaginous globoid-shaped apical and basal appendages (1.5–1.8 μm) and wider third cell from the apex in ascospores. Phylogenetic analysis (Maximum-likelihood, maximum-parsimony and Bayesian analyses) of combined LSU, SSU and ITS sequence data reveal that these collections differ from all other species in the genus. Therefore, a novel species, Plenodomus sinensis is introduced in this study. The new species is compared with other Plenodomus species and a comprehensive description and micrographs are provided.


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