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Yan N.,Zhejiang University | Wang X.-Q.,Zhejiang University | Xu X.-F.,Zhejiang University | Guo D.-P.,Zhejiang University | And 5 more authors.
Physiological and Molecular Plant Pathology | Year: 2013

An experiment was conducted to determine how photosynthesis was affected in Zizania latifolia Turcz. plants by infection of the endophytic smut fungus Ustilago esculenta. The results showed that U.esculenta infection induced a decreased plant height, but significantly increased above-ground biomass production as compared to control plants. Infected plants also exhibited higher Pn and chlorophyll content. In U.esculenta mycelia-sporidial infected plants, Pn, Gs and E generally were higher than those in sporidial infected plants. Compared to control plants, infected plants showed a higher light saturation point (LSP), apparent quantum yield (AQY) but a lower light compensation point (LCP). All leaves at different positions in infected plants showed higher Pn than control plants. The highest Pn was observed in the 4th leaf of infected plants, while it was the 3rd leaf in control plants. Infected plants generally showed relatively higher chlorophyll a fluorescence parameters in ΦPSII, ETR and qP than control plants. Maximum carboxylation rate of Rubisco (Vc, max) and maximum rate of RuBP regeneration (Jmax) were also elevated during U.esculenta infection. Our results revealed that promotion of photosynthetic efficiency was therefore probably mainly due to effects on non-stomatal processes by U.esculenta infection. © 2013 Elsevier Ltd.

Thambugala K.M.,CAS Kunming Institute of Botany | Thambugala K.M.,World Agroforestry Center | Thambugala K.M.,Institute of Excellence in Fungal Research | Thambugala K.M.,Mae Fah Luang University | And 25 more authors.
Fungal Diversity | Year: 2014

The type specimens or representative specimens of the potentially dothidealean genera Bagnisiella, Botryochora, Coccostromella, Columnosphaeria, Delphinella, Dictyodothis, Discosphaerina, Dothidea, Dothiora, Endodothiora, Jaffuela, Mycoporis, Omphalospora, Pachysacca, Plowrightia, Saccothecium, Stylodothis, Sydowia and Yoshinagaia were examined while, fresh specimens of Aureobasidium pullulans, Dothidea insculpta, Plowrightia ribesia and Saccothecium sepincola were made from Italy and Thailand. An introduction and the history of these genera, their family placement, morphology, and molecular phylogeny are provided. Morphology plus GenBank data are used to provide a systematic treatment of Dothideales. Phylogenetic analysis of LSU, SSU and ITS gene regions was carried out and in the resulting phylogenetic tree the taxa cluster in two clades with high bootstrap support. Clade A comprises Dothideaceae, the family type of Dothideales. The family Dothioraceae is not recognized as a distinct family and is synonymized under Dothideaceae. Neocylindroseptoria is introduced to accommodate Cylindroseptoria pistaciae as it forms a well-supported distinct clade in Dothideaceae. Clade B comprises Aureobasidium, Kabatiella, Pseudoseptoria, Saccothecium and Selenophoma species and Columnosphaeria fagi, for which we propose a new family, Aureobasidiaceae. The recently introduced Sydowia eucalypti also clustered within Clade B and therefore based on morphology and molecular phylogeny a new genus Pseudosydowia is introduced for Sydowia eucalypti. Celosporium laricicola is separated in a distinct clade, and therefore it is placed in Dothideales, genera, incertae sedis. The genera Bagnisiella, Botryochora, Coccostromella, Jaffuela, Lucidascocarpa, Mycoporis, Omphalospora, Pachysacca and Yoshinagaia are excluded from Dothideales and their placements are discussed. © 2014, School of Science.

Wanasinghe D.N.,World Agro forestry Center | Wanasinghe D.N.,CAS Kunming Institute of Botany | Wanasinghe D.N.,Institute of Excellence in Fungal Research | Wanasinghe D.N.,Mae Fah Luang University | And 18 more authors.
Cryptogamie, Mycologie | Year: 2014

Dothideomycetes with muriform ascospores, were previously placed in family Pleosporaceae, but they are not a monophyletic group, and can be placed across a range of orders and families. In this study an interesting saprobic ascomycete was isolated from Clematis vitalba which was collected in Italy. The species has unique characters and we introduced the taxon as a new genus and species within Lentitheciaceae, The conclusions are drawn from morphology and, LSU, SSU, EF1-α and RPB2 combined sequence analyses. Maximum parsimony (MP), maximum likelihood (ML) and Mr Bayes phylogenetic analysis all support this being a distinct genus within the Lentitheciaceae. It is distinguished from other genera of this family in having muriform ascospores whose central cells have longitudinal septa and light end cells, and ascomata with a thick peridium and a short neck. The new genus is compared with similar genera in the Lentitheciaceae and a comprehensive description, and micrographs are provided. The cultures were obtained via single ascospore isolation, and the asexual state was also established. © 2014 Adac. Tous droits réservés.

Manamgoda D.S.,Institute of Excellence in Fungal Research | Manamgoda D.S.,Mae Fah Luang University | Manamgoda D.S.,CAS Institute of Microbiology | Cai L.,CAS Institute of Microbiology | And 5 more authors.
Sydowia | Year: 2012

A multi-locus phylogeny based on combined sequences of rDNA ITS, EF1-α, GPDH and LSU revealed two new saprobic Curvularia species from grasses and dead wood in northern Thailand. The novel species, Curvularia alcornii and C. asianensis are introduced, fully described, illustrated, and compared to similar taxa in the genus.

Wijayawardene N.N.,CAS Kunming Institute of Botany | Wijayawardene N.N.,World Agroforestry Center | Wijayawardene N.N.,Institute of Excellence in Fungal Research | Crous P.W.,University of Pretoria | And 83 more authors.
Fungal Diversity | Year: 2014

Article 59.1, of the International Code of Nomenclature for Algae, Fungi, and Plants (ICN; Melbourne Code), which addresses the nomenclature of pleomorphic fungi, became effective from 30 July 2011. Since that date, each fungal species can have one nomenclaturally correct name in a particular classification. All other previously used names for this species will be considered as synonyms. The older generic epithet takes priority over the younger name. Any widely used younger names proposed for use, must comply with Art. 57.2 and their usage should be approved by the Nomenclature Committee for Fungi (NCF). In this paper, we list all genera currently accepted by us in Dothideomycetes (belonging to 23 orders and 110 families), including pleomorphic and non-pleomorphic genera. In the case of pleomorphic genera, we follow the rulings of the current ICN and propose single generic names for future usage. The taxonomic placements of 1261 genera are listed as an outline. Protected names and suppressed names for 34 pleomorphic genera are listed separately. Notes and justifications are provided for possible proposed names after the list of genera. Notes are also provided on recent advances in our understanding of asexual and sexual morph linkages in Dothideomycetes. A phylogenetic tree based on four gene analyses supported 23 orders and 75 families, while 35 families still lack molecular data. © 2014, School of Science.

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