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首页> 外文期刊>Phycological Research >Green epi-endophytes in Hymenena falklandica (Rhodophyta) from the Patagonian coasts of Argentina: Preliminary observations
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Green epi-endophytes in Hymenena falklandica (Rhodophyta) from the Patagonian coasts of Argentina: Preliminary observations

机译：来自阿根廷巴塔哥尼亚海岸的Hymenena falklandica（Rhodophyta）中的绿色外生内生体：初步观察

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摘要

The occurrence of epi-endophyte algae in Hymenena falklandica J. G. Ag. Ex Kylin (Rhodophyta) is reported in Argentina. Epicladia heterotricha (Yarish) Nielsen (Chlorophyceae) revealed a 100% prevalence of occurrence, particularly in the basal region of the host. Low (14%), moderate (28%) and high (58%) severity degrees of infection were also registered for E.heterotricha. Pseudendoclonium submarinum Wille (Chlorophyceae) exhibited a lower frequency of occurrence, close to 3%. The developmental morphology and dynamics of E.heterotricha and P.submarinum were investigated under unialgal as well as bialgal culture conditions. The experimental infection of H.falklandica by E.heterotricha demonstrated that E. heterotricha initially behaves as epiphytic but with endophytic filaments growing into the cortex of the host during late infection. P.submarinum was found to be exclusively epiphytic, with no development of endophytic filamentous systems. The present study reports the first lines of evidence of an epidemiological study conducted with the purpose of comparing both the prevalence and effects of algal epi-endophytic organisms in H.falklandica in the southern coasts of Argentina.
机译：Hymenena falklandica J. G. Ag。的表皮内生藻类的发生。阿根廷有Ex Kylin（Rhodophyta）的报道。 Epicladia heterotricha（Yarish）Nielsen（Chlorophyceae）的发生率100％，尤其是在寄主的基底区域。异位大肠杆菌的感染严重程度也较低（14％），中度（28％）和高（58％）。假单胞菌（Pseudendoclonium submarinum Wille）（绿藻科）的发生频率较低，接近3％。在单藻和双藻培养条件下，研究了大肠埃希氏菌和潜海假单胞菌的发育形态和动力学。 E.heterotricha对H.falklandica进行的实验性感染表明，异种E.terertricha最初表现为附生，但在后期感染期间内生细丝长入宿主的皮层。发现潜艇疟原虫仅是附生的，没有内生丝状系统的发育。本研究报告了一项流行病学研究的第一线证据，旨在比较阿根廷南部沿海福克兰地藻中海藻内生细菌的流行率和影响。

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