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| 1 | 楸树炭疽病菌的分离与鉴定显示文摘楸树(Catalpa bungei)是紫葳科(Bignoniaceae)落叶大乔木,是我国长江以北重要的乡土树种,材质优良,用途广泛[1]。2019-2021年,在北京、河北、山东,研究人员发现楸树叶片上出现炭疽病症状。病斑圆形至近圆形,褐色至灰褐色,中央凹陷破裂,病斑外围具有淡黄色晕圈,多个病斑扩大在一起,导致叶片卷曲、提前落叶(图1),严重影响了该植物的观赏性和绿化应用性。 | 王成彬 涂艳 姜宁 朱雅荃 薛寒 朴春根 李永 | 2023 | 植物病理学报2023，53，4： | 0 |
| 2 | What is a species in fungal plant pathogens?显示文摘Scientific names are crucial for communicating knowledge concerning fungi and fungus-like organisms.In plant pathology,they link information regarding biology,host range,distribution and potential risk to agriculture and food security.In the past,delimitation among pathogenic taxa was primarily based on morphological characteristics.Due to distinct species sharing overlapping characteristics,the morphological identification of species is often neither straightforward nor reliable.Hence,the phylogenetic species concept based on molecular phylogenetic reconstructions gained importance.The present opinion discusses what a fungal species is and how identification of species in plant pathology has changed over the past decades.In this context,host-specialization and species complexes are discussed.Furthermore,species concepts in plant pathology are examined using case studies from Bipolaris,Colletotrichum,Curvularia,Diaporthe,Diplodia,Meliola,Plasmopara,rust fungi and Trichoderma.Each entry contains a brief introduction to the genus,concepts used in species identification so far and the problems in describing a species followed by recommendations.The importance of correctly naming and identifying a species is addressed in the context of recent introductions,and we also discuss whether the introduction of new species in pathogenic genera has been overestimated.We also provide guidelines to be considered when introducing a new species in a plant pathogenic genus. | Ruvishika S.Jayawardena Kevin D.Hyde Antonio Roberto Gomes de Farias Chitrabhanu S.Bhunjun Himashi S.Ferdinandez Dimuthu S.Manamgoda Dhanushka Udayanga Indunil S.Herath Kasun M.Thambugala Ishara S.Manawasinghe Achala J.Gajanayake Binu C.Samarakoon Digvijayini Bundhun Deecksha Gomdola Naruemon Huanraluek Ya-ru Sun Xia Tang Itthayakorn Promputtha Marco Thines | 2021 | Fungal Diversity2021，，4： | 0 |
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