Djellid Youssef, Mahamedi Alla Eddine, Spetik Milan, Hakalová Eliska, Eichmeier Ales, Gonçalves Micael Ferreira Mota, Lamghari Fouad, Al Hmoudi Maryam Ali Saeed Mohamed, Berraf-Tebbal Akila
Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure Cheikh Mohamed El Bachir El Ibrahimi de Kouba, 16308 Vieux-Kouba, Alger, Algeria Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure Cheikh Mohamed El Bachir El Ibrahimi de Kouba Alger Algeria.
Département de Biologie, Faculté des Sciences de la Nature et de la Vie, et des Sciences de la Terre, Université de Ghardaia, 47000 Ghardaïa, Algeria Université de Ghardaia Ghardaïa Algeria.
MycoKeys. 2025 Aug 15;120:295-315. doi: 10.3897/mycokeys.120.144245. eCollection 2025.
Date palm ( L.) is one of the oldest fruit crops grown in the semi-arid and arid regions, playing significant ecological, environmental and socio-economic roles. Recently, palm leaf spot and blight diseases have indeed emerged as significant threats to phoeniciculture. They reduce yield and quality of dates leading to economic losses. Therefore, a survey was conducted in four palm groves located in the Biskra and Ghardaia provinces of Algeria. This investigation revealed two new species associated with leaf spot and blight symptoms on date palm. These newly identified species are designated as and , which belong to the and sections, respectively. The isolates were phylogenetically identified using the key genetic markers of the genus including the large subunit ribosomal DNA (LSU), internal transcribed spacer region of the ribosomal RNA (ITS), glyceraldehyde-3-phosphate dehydrogenase (), RNA polymerase II subunit (), translation elongation factor () and plasma membrane () genes and illustrated based on the morphological characteristics.
海枣（Phoenix dactylifera L.）是在半干旱和干旱地区种植的最古老的水果作物之一，具有重要的生态、环境和社会经济作用。最近，棕榈叶斑病和枯萎病已成为海枣种植的重大威胁。它们降低了枣的产量和品质，导致经济损失。因此，在阿尔及利亚比斯克拉省和加尔德亚省的四个棕榈树林中进行了一项调查。该调查发现了两种与海枣叶斑病和枯萎病症状相关的新物种。这些新鉴定的物种分别被命名为 和 ，它们分别属于 和 组。使用该属的关键遗传标记对分离株进行系统发育鉴定，包括大亚基核糖体DNA（LSU）、核糖体RNA的内部转录间隔区（ITS）、甘油醛-3-磷酸脱氢酶（GAPDH）、RNA聚合酶II亚基（RPB2）、翻译延伸因子（TEF1）和质膜（PM）基因，并根据形态特征进行了说明。
