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Forests
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Forest Tree Diseases Genomics: Growing Resources and Applications
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Forest Tree Diseases Genomics: Growing Resources and Applications

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Health".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 3925

Special Issue Editors

Dr. Tingting Dai

E-Mail Website
Guest Editor
Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
Interests: detection; fungi and oomycetes; phylogeny; whole genome sequencing
Dr. Jiajia Chen

E-Mail Website
Guest Editor
College of Landscape Architecture, Jiangsu Vocational College of Agriculture and Forestry, Zhenjiang 212400, China
Interests: fungi and oomycetes; phylogeny; whole genome sequencing
Dr. Simon Francis Shamoun

E-Mail Website
Guest Editor
Canadian Forest Service, Pacific Forestry Centre, Natural Resources Canada, Government of Canada, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada
Interests: forest pathology; forest invasive alien and indigenous pathogens; molecular ecology and diagnostics; mycoviruses; biological control science and technology

Special Issue Information

Dear Colleagues,

A large number of fungi and oomycetes are of Tree Pathology. On one hand, fungi and oomycetes are among the dominant causal agents of plant diseases; on the other hand, fungi or oomycetes are also biological control agents of pathogens. Our understanding of the diversity, host range and specificity of fungi and oomycetes has improved with the enrichment of knowledge surrounding taxonomy and phylogeny over the years; however, many unknowns remain.

Fungi and oomycetes genomes are easily obtained, and have been used as models for genome evolution and the reconstruction of the phylogenetic relationship using genome-scale data. In these models, groundbreaking comparative genomic studies making use of these features have already been published. These breakthroughs are leading the way in fungi and oomycetes research.

The aim of this research topic is to collect articles focusing on the biodiversity, molecular systematics, and taxonomy of fungi and oomycetes all over the world. Additionally, approaches to the diagnosis of fungal and oomycete plant diseases, including advances in the field of molecular diagnosis of fungi and oomycetes, are welcome. Research involving diagnostic techniques should demonstrate improvements in diagnostic accuracy and time.

For these above reasons, we sincerely encourage experts and researchers to contribute original research articles, reviews, and communications that address the following topics:

  1. Phylogeny and diversity of fungi and oomycetes.
  2. Morphological and molecular characterization of plant pathogens.
  3. Genomics, transcriptomics, proteomics, and epigenomics data analyses.
  4. Molecular diagnostics of fungi and oomycetes.

Dr. Tingting Dai
Dr. Jiajia Chen
Dr. Simon Francis Shamoun
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Forests is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • detection
  • fungi and oomycetes
  • phylogeny
  • taxonomy
  • whole genome sequencing

Published Papers (3 papers)

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22 pages, 14329 KiB  
Article
Colletotrichum Species Causing Cyclocarya paliurus Anthracnose in Southern China
by Xiang-Rong Zheng, Mao-Jiao Zhang and Feng-Mao Chen
Forests 2024, 15(3), 490; https://doi.org/10.3390/f15030490 - 06 Mar 2024
Viewed by 683
Abstract
Cyclocarya paliurus, native to China, is a medicinal and edible plant with important health benefits. Anthracnose is an emerging disease in southern China that causes severe economic losses and poses a great threat to the C. paliurus tea industry. However, to date, [...] Read more.
Cyclocarya paliurus, native to China, is a medicinal and edible plant with important health benefits. Anthracnose is an emerging disease in southern China that causes severe economic losses and poses a great threat to the C. paliurus tea industry. However, to date, the species diversity of pathogens causing C. paliurus anthracnose has remained limited. From 2018 to 2022, a total of 331 Colletotrichum isolates were recovered from symptomatic leaves in eight major C. paliurus planting provinces of southern China. Phylogenetic analyses based on nine loci (ITS, GAPDH, ACT, CHS-1, TUB, CAL, HIS3, GS and ApMat) coupled with phenotypic characteristics revealed that 43 representative isolates belonged to seven known Colletotrichum species, including C. brevisporum, C. fructicola, C. gloeosporioides sensu stricto, C. godetiae, C. nymphaeae, C. plurivorum and C. sojae. Pathogenicity tests demonstrated that all species described above were pathogenic to wounding detached leaves of C. paliurus, with C. fructicola being the most aggressive species. However, C. brevisporum, C. plurivorum and C. sojae were not pathogenic to the intact plant of C. paliurus. These findings reveal the remarkable species diversity involved in C. paliurus anthracnose and will facilitate further studies on implementing effective control of C. paliurus anthracnose in China. Full article
(This article belongs to the Special Issue Forest Tree Diseases Genomics: Growing Resources and Applications)
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13 pages, 1817 KiB  
Article
The New Report of Root Rot on Fatsia japonica Caused by Phytophthora nicotianae in China
by Jing Zhou, Tingyan Xu, Xiaoqiao Xu, Tingting Dai and Tingli Liu
Forests 2023, 14(7), 1459; https://doi.org/10.3390/f14071459 - 17 Jul 2023
Cited by 1 | Viewed by 1894
Abstract
As an ornamental plant, Fatsia japonica has been widely used in gardens. From April 2021 to 2022, a disease that caused the wilting and root rot of F. japonica in a large area was observed, which eventually led to the plants wilting and [...] Read more.
As an ornamental plant, Fatsia japonica has been widely used in gardens. From April 2021 to 2022, a disease that caused the wilting and root rot of F. japonica in a large area was observed, which eventually led to the plants wilting and dying, while the leaves did not fall off. This disease greatly reduced the landscape effect of plants. An oomycete species was isolated from the roots of the infected plants. This colony morphology was slightly radial to stellate, and the aerial mycelium was flocculent. Oval sporangia with papillae, apical chlamydospores and zoospores formed in sporangia were observed. The morphological characteristics were consistent with Phytophthora. For accurate identification, the internal transcribed spacer (ITS), cytochrome oxidase subunit II (COXII) and large ribosomal subunit (LSU) genes were amplified and sequenced. The species was identified as Phytophthora nicotianae using phylogenetic analysis. Finally, the disease was reproduced by inoculating healthy F. japonica with a zoospore suspension; the symptoms were consistent with those of natural infections, and the isolate obtained from artificially infected plants had the same morphological characteristics as the inoculated isolate. The results demonstrated that P. nicotianae is the pathogenic factor of root rot. of F. japonica. This is the first report of root rot on F. japonica caused by P. nicotianae in China. Full article
(This article belongs to the Special Issue Forest Tree Diseases Genomics: Growing Resources and Applications)
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10 pages, 3512 KiB  
Brief Report
Protein Disulfide Isomerase CfPdi1 Is Required for Response to ER Stress, Autophagy, and Pathogenicity in Colletotrichum fructicola
by Sizheng Li, Jiajia Chen and He Li
Forests 2023, 14(8), 1597; https://doi.org/10.3390/f14081597 - 07 Aug 2023
Viewed by 907
Abstract
Camellia oleifera, a woody plant indigenous to China, is primarily utilized for the production of cooking oil. However, it is frequently afflicted by anthracnose, a highly detrimental disease that leads to significant annual losses. Colletotrichum fructicola is the predominant etiological agent responsible [...] Read more.
Camellia oleifera, a woody plant indigenous to China, is primarily utilized for the production of cooking oil. However, it is frequently afflicted by anthracnose, a highly detrimental disease that leads to significant annual losses. Colletotrichum fructicola is the predominant etiological agent responsible for anthracnose in Ca. oleifera. Additionally, our investigation has revealed that a bZIP transcription factor CfHac1 in C. fructicola governs the pathogenicity and response to endoplasmic reticulum stress. In this study, we conducted an investigation of the role of the CfPDI1 gene in C. fructicola, which was significantly downregulated in ΔCfhac1 under endoplasmic reticulum stress. The CfPDI1 gene was deleted, resulting in reduced vegetative growth, conidiation, appressoria formation, and appressorium turgor generation. Furthermore, it was observed that the ΔCfpdi1 mutant exhibited impaired responsiveness to endoplasmic reticulum stresses, and the expression of UPR-related genes in C. fructicola was influenced by CfPdi1. Cytological investigations indicated that CfPdi1 is localized in the endoplasmic reticulum. Further analysis revealed that the ΔCfpdi1 mutant displays significantly reduced pathogenicity in Ca. oleifera. Taken together, this study illustrated crucial functions of CfPdi1 in development, response to ER stress, autophagy, and pathogenicity in C. fructicola. Full article
(This article belongs to the Special Issue Forest Tree Diseases Genomics: Growing Resources and Applications)
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