Environmental distribution of Cryptococcus neoformans and C. gattii around the Mediterranean basin
Environmental distribution of Cryptococcus neoformans and C. gattii around the Mediterranean basin
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DOI：
10.1093/femsyr/fow045
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发表时间：
2016-06-01
影响因子：
3.2
通讯作者：
Colom, Maria F.
中科院分区：
文献类型：
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作者：
Cogliati, Massimo;D'Amicis, Roberta;Colom, Maria F.
为了阐明新生隐球菌和隐球菌的分布。2012-2015年期间，在地中海盆地的gattii进行了广泛的环境调查。在12个国家的302个地点进行了采样，收集了3765棵树的6436个样本，发现5%的树木被隐球菌酵母定殖。从177株树木中分离到新型隐球菌，并对C. gattii从13.新生隐球菌定植于27%的角豆属，10%的油橄榄属，悬铃木属和李属树木和其他树木属的百分比较低。13 C。从5株桉树、4株角豆树、2株松属和2株油橄榄树上采集到gattii分离物。新型隐球菌在地中海盆地广泛分布，而C.在希腊、意大利南部和西班牙分离到了gattii，这与先前临床和环境来源的发现一致。在C.在新生儿分离株中，VNI是流行的分子类型，但也分离到VNII、VNIV和VNIII杂合株。除一株VGIV分离株外，所有C. gattii分离株为VGI。结果证实了地中海环境中存在这两种隐球菌，并表明角豆树和橄榄树都是这些酵母菌的重要生态位。
In order to elucidate the distribution of Cryptococcus neoformans and C. gattii in the Mediterranean basin, an extensive environmental survey was carried out during 2012-2015. A total of 302 sites located in 12 countries were sampled, 6436 samples from 3765 trees were collected and 5% of trees were found to be colonized by cryptococcal yeasts. Cryptococcus neoformans was isolated from 177 trees and C. gattii from 13. Cryptococcus neoformans colonized 27% of Ceratonia, 10% of Olea, Platanus and Prunus trees and a lower percentage of other tree genera. The 13 C. gattii isolates were collected from five Eucalyptus, four Ceratonia, two Pinus and two Olea trees. Cryptococcus neoformans was distributed all around the Mediterranean basin, whereas C. gattii was isolated in Greece, Southern Italy and Spain, in agreement with previous findings from both clinical and environmental sources. Among C. neoformans isolates, VNI was the prevalent molecular type but VNII, VNIV and VNIII hybrid strains were also isolated. With the exception of a single VGIV isolate, all C. gattii isolates were VGI. The results confirmed the presence of both Cryptococcus species in the Mediterranean environment, and showed that both carob and olive trees represent an important niche for these yeasts.