Botryosphaeriaceous fungi associated with holm (Q. ilex) and cork (Q. suber) oak trees exhibiting dieback symptoms and cankers in Algeria, were sampled in twelve regions with different ecological conditions. Based on phylogenetic analyses of ITS and tef1-α loci, 13 species were identified. Three species (Diplodia corticola, Dothiorella iberica and Botryosphaeria dothidea) were found to be common to both oak species, while Doth. sarmentorum, D. mutila, Neofusicoccum vitifusiforme, D. insularis, N. stellenboschiana, Doth. plurivora, D. seriata, D. rosacearum, N. parvum and N. terminaliae were found only on one of the hosts. All the Botryosphaeriaceae taxa inoculated on oak shoots produced brown vascular discolouration, and were shown to be pathogenic on both oak species. Diplodia corticola was the most widespread and frequent species showing the highest aggressiveness towards both hosts. Neofusicoccum stellenboschiana, D. insularis and Doth. plurivora are recorded for the first time on Q. suber and Q. ilex. In addition to altitude, the environmental factors temperature and drought appeared to be influential variables that could describe the occurrence and the geographic distribution of these fungal species.

在十二个生态条件不同的地区，对与表现出枯萎病症状和and病的橡树（Q. ilex）和软木（Q. suber）橡树相关的灰霉病真菌进行了采样。根据ITS和tef1-α基因座的系统发育分析，鉴定出13种。三种橡树种（Diplodia corticola，Dothiorella iberica和Botryosphaeria dothidea）被发现是两种橡树种共有的。sarmentorum，D。mutila，Neofusicoccum vitifusiforme，D。insularis，N。stellenboschiana，Doth。plurivora，D. seriata，D. rosacearum，N. parvum和N. terminaliae仅在其中一台主机上找到。所有Botryosphaeriaceae接种在橡木枝条类群产生褐色的血管变色，并且被证明是在两个物种橡木致病。Diplodia corticola是分布最广，频率最高的物种，对两种寄主的侵略性最高。Neofusicoccum stellenboschiana，insularis和Doth。plurivora记录首次在问：苏伯和Q.冬青。除海拔高度外，环境因素温度和干旱似乎是可以描述这些真菌物种的发生和地理分布的影响变量。