New Zealand Journal of Botany最新文献

{"title":"The fruit dispersion of <i>Adenostemma brasilianum</i> (Asteraceae) by birds: an experimental approach","authors":"Florencia Débora Dosil Hiriart, Liliana Katinas, Luciano Noel Segura","doi":"10.1080/0028825x.2023.2278622","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2278622","url":null,"abstract":"ABSTRACTThe pantropical genus Adenostemma (Asteraceae) includes mostly herbs which occur in wet forests and stream edges. They produce a large number of small fruits or cypselae, covered by glandular hairs and bearing a particular glandular pappus. These morphological characteristics of the fruits have been associated, but never tested, with dispersion by adhesion to birds’ feathers. We developed for the first time an experimental study to demonstrate the ability of the fruits of Adenostemma brasilianum (Pers.) Cass. to adhere to birds’ feathers. We performed three different experiments to test both the adherence and retention time of the fruits, with: 1) individual feathers, 2) taxidermied birds mounted in a life-like position, and 3) live captive birds. The fruits were effective in attaching to feather barbs under the three experiments and were able to remain attached for a period of time, supporting previous hypotheses that epiornithochory could be directly involved in the process of fruit dispersion. Our results are especially relevant in the understanding of biogeographic patterns in Adenostemma, given the importance of birds as fruit dispersion agents.KEYWORDS: Adenostemmadispersion by adhesionepiornithochoryEupatorieaepantropicalsticky fruits AcknowledgmentsWe thank R. Ramos, M. Grossi, E. Guerrero and T. Barea for helping us during field work, P. Altieri, M. Colombo, J. Crisci, and A. Jauregui for critical reading of the manuscript, and two anonymous reviewers for their helpful comments. We also thank K. Depot for carefully revising the English writing and Julio Milat from the Museo Ornitológico de Berisso for providing the taxidermied models to carry out the experiments. This study was conducted with research permits from the regional nature conservation authority (Res. 003/16; OPDS #17717, Dirección de Áreas Naturales Protegidas, Buenos Aires province, Argentina) and complies with the current laws of the country in which it was performed. This paper is the Scientific Contribution N° 1239 of the Institute of Limnology “Dr. Raúl A. Ringuelet” (ILPLA, CCT-La Plata CONICET, UNLP). Authors are CONICET Research Fellows.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingPartial financial support was received from Agencia Nacional de Promoción Científica y Tecnológica (PICT 2017–0965 and 2020–1529).","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"80 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135037224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New Zealand myxomycetes","authors":"Steven L. Stephenson","doi":"10.1080/0028825x.2023.2276942","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2276942","url":null,"abstract":"ABSTRACTThe myxomycetes (also called myxogastrids or plasmodial slime moulds) are a group of eumycetozoans long thought to be fungi because they produce somewhat similar (but structurally very different) fruiting bodies and occur in many of the same types of ecological situations. The first six species of myxomycetes were reported from New Zealand in 1855, but the specimens upon which these records were based had been collected more than a decade earlier. Since myxomycetes were long regarded as fungi, early records variably appeared on lists and in published works for the latter group of organisms. During the second half of the nineteenth century and the entire twentieth century, information on New Zealand myxomycetes has increased, with 1992 marking publication of first relatively complete checklist and the author’s first collecting trip to the country. All earlier records of myxomycetes were based on specimens that had developed in the field under natural conditions, but the checklist also included the first records based on specimens obtained from moist chamber cultures. A comprehensive and detailed monograph (entitled Myxomycetes of New Zealand and published by Fungal Diversity Press) of the approximately 185 species then known from New Zealand was published in 2003. A number of additional species have been added to this total during the past twenty years. Because myxomycetes remain unfamiliar organisms to most people, information is provided on their biology, their relatively complex life cycle, and ecological distribution in nature.KEYWORDS: Ecology; distribution; fruiting body; history; life cycle; moist chamber cultures; slime moulds AcknowledgementsI wish to thank all of the people who assisted in the collecting I carried out in New Zealand. Special appreciation is extended to my wife, who my constant companion on many of my visits to various regions of the country. Clive Shirley contributed some of the images used in this paper and Carlos Rojas prepared the map used for Figure 6.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingMy field work in New Zealand was supported by grants from the National Science Foundation and the National Geographic Society.","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"6 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sexual morph of <i>Allophoma tropica</i> and <i>Didymella coffeae-arabicae</i> ( <i>Didymellaceae</i> , <i>Pleosporales</i> , <i>Dothidiomycetes</i> ), including novel host records from leaf litter in Thailand","authors":"Nethmini P. Samaradiwakara, Antonio Roberto Gomes de Farias, Danushka S. Tennakoon, Chitrabhanu S. Bhunjun, Kevin D. Hyde, Saisamorn Lumyong","doi":"10.1080/0028825x.2023.2272957","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2272957","url":null,"abstract":"ABSTRACTStudying the taxonomy, diversity and host preference of leaf litter inhabiting microfungi contributes towards elucidating hidden taxa, their host affinities and recovering novel life modes dwelling inside forest ecosystems. Leaf litter-inhabiting microfungi also play a crucial role in forest ecosystems through decomposition and nutrient recycling. This study resulted in the introduction of saprobic Didymellaceae microfungi from Doi Tung Forest Reserve, Chiang Rai, northern Thailand. Fungal isolates were characterised based on morphology and molecular phylogeny of the nuclear ribosomal DNA (ITS, LSU) and protein-coding genes (tub2, rpb2). Allophoma tropica and Remotididymella ageratinae are recorded from dead leaves of Nayariophyton zizyphifolium (Malvaceae), and Didymella coffeae-arabicae from Dalbergia cultrata and Afzelia xylocarpa (Fabaceae). This study also reports the sexual morph of Allophoma tropica and Didymella coffeae-arabicae and provides molecular evidence for the first reports of sexual morphs from Thailand.KEYWORDS: Host preferencemulti-gene phylogenynew sexual recordPleosporalessaprobic fungitaxonomy AcknowledgementNethmini P. Samaradiwakara is grateful to Chiang Mai University Presidential Scholarship 2020. Authors would like to thank Chiang Mai University for their partial support in conducting the study. Kevin D. Hyde and Chitrabhanu S. Bhunjun would like to thank the National Research Council of Thailand (NRCT) grant ‘Total fungal diversity in a given forest area with implications towards species numbers, chemical diversity and biotechnology’ (grant number N42A650547). Anthonio Roberto Gomes de Farias thanks Thailand Science and Innovation (TSRI) and National Science and Innovation Fund (NSRF) Fundamental fund grant (Grant no. 662A1616047), entitled ‘Biodiversity, ecology, and applications of plant litter-inhabiting fungi for waste degradation’ for partially funding this research. Chitrabhanu S. Bhunjun would like to thank Martin van de Bult, Narong Apichai and the Doi Tung Development Project for allowing sample collection (permission number 7700/17142) with the title ‘The diversity of saprobic fungi on selected hosts in northern Thailand’. All the staff and colleagues at the Centre of Excellence in Fungal Research, Mae Fah Luang University, Thailand are acknowledged.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementAll sequences generated in this study were submitted to GenBank (https://www.ncbi.nlm.nih.gov).Additional informationFundingAuthor would like to thank Thailand Science and Innovation (TSRI) and National Science and Innovation Fund (NSRF) Fundamental fund grant (Grant no. 662A1616047), entitled ‘Biodiversity, ecology, and applications of plant litter-inhabiting fungi for waste degradation’ for partially funding this research.","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"5 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the trauma-specific frailty index in geriatric trauma patients according to the new World Health Organization age classification.","authors":"Rumeysa Sut, Adem Az, Sumeyye Cakmak, Ozgur Sogut","doi":"10.14744/nci.2022.65785","DOIUrl":"10.14744/nci.2022.65785","url":null,"abstract":"<p><strong>Objective: </strong>We compared the 15-variable trauma-specific frailty index and traditional injury scoring systems to determine trauma severity and predict discharge disposition in geriatric trauma patients based on the old and new World Health Organization age classifications.</p><p><strong>Methods: </strong>This prospective, observational, single-center study included geriatric patients aged ≥65 years with blunt trauma. We categorized patients as elderly based on the old or new World Health Organization age classification into group I (aged 65-79 years) and group II (aged ≥a80 years), respectively. At admission, we used traditional injury scoring systems (e.g., the Glasgow coma scale, injury severity score, and revised trauma score) to determine trauma severity. We compared the Trauma-Specific Frailty Index and traditional injury scoring systems between the patient groups and evaluated them for correlations.</p><p><strong>Results: </strong>We included 169 geriatric patients (80 and 89 in groups I and II, respectively). The mean Trauma-Specific Frailty Index score was significantly higher among females than males (p=0.025) and group II than group I (p=0.021). No significant correlations were observed in terms of the Trauma-Specific Frailty Index and traditional injury scoring systems in both groups. The mean Trauma-Specific Frailty Index score was significantly different between the hospitalized and discharged patients in group I (p=0.005), but not in group II (p=0.526).</p><p><strong>Conclusion: </strong>The 15-variable Trauma-Specific Frailty Index score is superior to traditional injury scoring systems for managing and predicting discharge disposition in geriatric trauma patients aged 65-79 years.</p>","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"35 1","pages":"711-717"},"PeriodicalIF":1.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10846567/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80862967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antagonistic potential of <i>Bacillus amyloliquefaciens</i> and <i>B</i> . <i>velezensis</i> as biocontrol agents against <i>Lasiodiplodia theobromae</i>","authors":"Ekachai Chukeatirote, Phichaya Thirach, Saowaluck Tibpromma, Suhail Asad, Alviti Kankanamalage Hasith Priyashantha, Abdallah M. Elgorban, Kanjana Niraphai","doi":"10.1080/0028825x.2023.2274400","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2274400","url":null,"abstract":"","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"22 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136157686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Taxonomic revision of <i>Neodidymelliopsis</i> with <i>N. cynanchi</i> sp. nov., associated with <i>Cynanchum sibiricum</i> leaf spot in Xinjiang, China","authors":"Zhixiu Qian, Shanhe Zhang, Ishara S. Manawasinghe, Diangang Sun, Jiage Song, Biao Xu","doi":"10.1080/0028825x.2023.2267807","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2267807","url":null,"abstract":"ABSTRACTDuring surveys of plant pathogens in the desert regions of Xinjiang Province, China, a leaf spot was observed on Cynanchum sibiricum. The suspected fungus was isolated and identified using morphology and molecular phylogeny. Morphologically, the fungus was similar to Neodidymelliopsis species. Phylogenetic analyzes of combined internal transcribed spacer (ITS); the large subunit of the ribosomal rDNA (LSU); RNA polymerase II the second largest subunit (rpb2), and β-tubulin gene (tub2) sequences showed that our isolates formed a distinct monophyletic lineage in Neodidymelliopsis. This new clade is identified as Neodidymelliopsis cynanchi sp. nov. based on the phylogenetic and morphological evidence. In addition, N. urticae is synonymized with N. cannabis based on morphology and phylogeny. Furthermore, we emphasize that in-depth revisions are required to assure the taxonomic status of N. sambuci, N. tinkyukuku and N. salvia. This is the first report of Neodidymelliopsis species associated with C. sibiricum leaf spot. The results expand our knowledge of Didymellaceae taxa and microfungi associated with desert environments in China.KEYWORDS: 1 new speciesdesert plantmorphologyphylogenetic analyzesPleosporales AcknowledgementsThe authors would like to thank Prof. Eric McKenzie for helpful comments.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by National Natural Science Foundation of China [grant numbers 32370021, 32100012]; the foundations of Guangdong Provincial Department of Education [grant numbers 2022KCXTD015, 2022ZDJS020]; Graduate Science and Technology Innovation Program [grant number KJCX20220257]; the Project of Fungi Investigations in Tomur Mountains National Nature [grant number 2021-01-139-2]; Undergraduate Innovation and Entrepreneurship Projects Program [grant number 2022113470071].","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135824756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the holomorph and novel host records of <i>Shearia formosa</i> ( <i>Longiostiolaceae, Pleosporales</i> ) in China","authors":"Ashani D. Madagammana, Milan C. Samarakoon, Chayanard Phukhamsakda, Chitrabhanu S. Bhunjun, Naruemon Huanraluek, Jian-Kui Liu, Kevin D. Hyde","doi":"10.1080/0028825x.2023.2267775","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2267775","url":null,"abstract":"ABSTRACTShearia belongs to the Longiostiolaceae (Pleosporales, Dothideomycetes) and is typified by S. formosa. Previously, Shearia species were reported by their asexual morph, and here we introduce the first sexual morph for Shearia. We also provide the sexual-asexual linkage of S. formosa with two new host records from Magnolia sprengeri and Michelia alba from China based on morpho-molecular analyses. The sexual morph of S. formosa is characterised by having perithecial ascomata with an erumpent ostiole, cellular pseudoparaphyses and asci embedded in a gelatinous matrix, short pedicellate asci with an ocular chamber, and transversely and vertically septate spores surrounded by a thick mucilaginous sheath. Our S. formosa isolates clustered with other authentic strains of S. formosa based on maximum parsimony, maximum likelihood, and Bayesian inference analyses of the combined sequence data of 28S ribosomal RNA (LSU), 18S small subunit rDNA (SSU), RNA polymerase II second largest subunit (rpb2), and the translation elongation factor 1-alpha gene (tef).KEYWORDS: Asexual morphmulti-loci phylogenyPleosporalessexual morphShearia formosatwo new records AcknowledgementsThe authors thank the National Research Council of Thailand (NRCT) grant “Total fungal diversity in a given forest area with implications towards species numbers, chemical diversity and biotechnology” (grant no. N42A650547). Ashani D. Madagammana thanks the Mushroom Research Foundation (MRF), Thailand for financial support and A.R. Rathnayaka and S.N. Wijesinghe for their valuable suggestions.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135824740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two new species and a new host record of Pleosporales (Dothideomycetes) from palm ( <i>Arecaceae</i> ) in Guangdong Province, China","authors":"Yinru Xiong, Ishara S. Manawasinghe, Dhanushka N. Wanasinghe, Sinang Hongsanan, Kevin D. Hyde, Xu Biao, Zhangyong Dong","doi":"10.1080/0028825x.2023.2258583","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2258583","url":null,"abstract":"ABSTRACTPleosporales is the largest order of Ascomycota which is distributed worldwide. Among the wide range of hosts, Pleosporales species are frequently isolated from palms. During the surveys of palm fungi from 2020 to 2021, rotting tissues of Licuala peltata var. sumawongii, Phoenix roebelenii and Trachycarpus fortunei were collected in Guangzhou, Guangdong Province, China. Fungal isolates were identified based on morphological characteristics and multi-gene phylogenetic analyses. In the present study, we introduce two new species viz. Byssosphaeria guangdongense and Paraconiothyrium guangdongensis. In addition, we introduce a new host record for Trachycarpus fortunei. Photo plates, detailed descriptions, and in-depth phylogenetic analysis results are provided for all identified taxa. Our findings expand the understanding of the fungi that are associated with palm hosts. Moreover, our data will contribute to the knowledge of the biodiversity of South China.KEYWORDS: ByssosphaeriaMagnibotryascomaParaconiothyriumphylogenysaprobic fungi2 new species‌ AcknowledgementsWe would like to thank Dr Shaun Pennycook, Nomenclature Editor of Mycotaxon, for his guidance on the species names. Ishara S Manawasinghe would like to thank the Research Project of the Innovative Institute for Plant Health (KA21031H101) and the project of the Zhongkai University of Agriculture and Engineering, Guangzhou, China (KA210319288). Dhanushka Wanasinghe would like to thank CAS President’s International Fellowship Initiative (grant number 2021FYB0005), the National Science Foundation of China (NSFC) under the project code 32150410362 and the Postdoctoral Fund from Human Resources and Social Security Bureau of Yunnan Province. Biao Xu would like to thank the Innovative team program of the Department of Education of Guangdong Province (2022KCXTD015 and 2022ZDJS020). Zhangyong Dong would like to thank the Key Realm R & D Program of Guangdong Province (2018B020205003).Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis research was funded by the High-level Talents at Zhongkai University of Agriculture and Engineering, grant no: J2201080102.","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135645050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of phlegmacioid Cortinariaceae (Agaricales) in New Zealand","authors":"Karl Soop, Jerry A. Cooper, Andy R. Nilsen, Noah Siegel, David A. Orlovich","doi":"10.1080/0028825x.2023.2255159","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2255159","url":null,"abstract":"We review the diversity of phlegmacioid (Cortinariaceae) taxa in New Zealand as well as in other parts of the Southern Hemisphere. Using a 4-locus molecular phylogeny, it is shown that these taxa are represented in six of the ten recently recognised genera of Cortinariaceae. These are discussed, their taxonomy is analysed, and a key is provided. Eight new species (Mystinarius badiohepaticus, Phlegmacium medburyensis, Ph. tinelineicus, Thaxterogaster artosinus, Th. artosoides, Th. porcellanoides, Th. pseudoaustralis, Th. subdulciorum) and two new sections (Phlegmacium sect. Rufoaurantia, Thaxterogaster sect. Artosoides) are proposed.","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135645059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phylloremediation of pyrene and anthracene by endophytic fungi inhabiting tea leaves ( <i>Camellia sinensis</i> (L.) Kuntze) in Sri Lanka","authors":"Lanka Undugoda, Kasun Thambugala, Sagarika Kannangara, Jayantha Munasinghe, Nadeeka Premarathna, Nadeema Dharmasiri","doi":"10.1080/0028825x.2023.2258829","DOIUrl":"https://doi.org/10.1080/0028825x.2023.2258829","url":null,"abstract":"ABSTRACTPolyaromatic hydrocarbons (PAHs) released from vehicular emissions and oil refineries deposit on the phyllosphere, compromising the quality of leaf-based food products by posing many health issues. Nevertheless, the tea phyllosphere harbours a variety of endophytes that are highly effective at degrading polyaromatic hydrocarbons, anthracene, and pyrene. The present study attempts to analyse the pyrene and anthracene degrading capability of phyllosphere endophytic fungi that inhabit Camellia sinensis (L.) Kuntze leaves. The frequency of occurrence of endophytic fungi in different leaf tissue layers was examined using light and scanning electron microscopy (SEM). The best pyrene and anthracene degrading strains were selected based on the High-Performance Liquid Chromatography (HPLC) results, and further kinetic assays. Light microscopy and SEM observations highlighted a heterogeneous endophytic fungal distribution among leaf tissue layers; the upper epidermis had the highest fungal distribution compared to other leaf layers. HPLC results revealed that Phyllosticta capitalensis, Colletotrichum gloeosporioides, Colletotrichum siamense, Pseudopestalotiopsis chinensis, and Daldinia eschscholtzii, have higher pyrene and anthracene degradation respectively and their PAH degradation kinetics follow the first-order kinetic model. The best anthracene and pyrene degrader, P. capitalensis showed the lowest half-life. The present investigation highlights the potential of P. capitalensis, the best pyrene and anthracene degrader that can remediate PAHs deposited on the phyllosphere of tea leaves.KEYWORDS: Bioremediationfungal endophyteskineticspollutantspolyaromatic hydrocarbons (PAHs) AcknowledgmentsThe authors wish to acknowledge the Department of Plant and Molecular Biology, University of Kelaniya, Sri Lanka, for providing facilities to carry out this research component.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":19317,"journal":{"name":"New Zealand Journal of Botany","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136315018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}