Effect of abiotic factors on the unique glitter-like iridescence of Cellulophaga lytica
Effect of abiotic factors on the unique glitter-like iridescence of Cellulophaga lytica
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DOI：
10.1111/j.1574-6968.2012.02614.x
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发表时间：
2012-08-01
影响因子：
2.1
通讯作者：
Rosenfeld, Eric
中科院分区：
文献类型：
--
作者：
Kientz, Betty;Marie, Pauline;Rosenfeld, Eric
虹彩是一种结构颜色的属性，在原核生物王国中的文献记载很少。我们最近分离到一株裂解纤维素菌菌株，该菌株在固体介质上表现出独特的强烈闪光状虹彩。对裂殖吸虫CECT8139的虹彩现象进行了光学和物理特征分析，但未发现该现象的生理意义。在本工作中，我们研究了关键的非生物因素对裂叶乳杆菌生长和彩虹的影响。特别注意了模拟岩岸生态系统的条件，岩岸生态系统是溶藻的自然生物栖息地。我们发现，蓝藻的彩虹色彩需要海水的存在。这一现象不受生长过程中光照或平板取向的影响。溶纤维素菌在各种培养条件下都能产生彩虹，特别是在嗜冷、嗜盐和氢气胁迫条件下。菌落颜色的变化(蓝色、紫色、红色、黄色和绿色)与细胞密度有关。这些数据表明，彩虹彩虹彩是在模拟赖氏绒毛虫自然生物群落的条件下诱导出来的。
Iridescence is a property of structural color that has been poorly documented in the prokaryotic kingdom. We recently isolated a Cellulophaga lytica strain that exhibits, on solid media, a unique intense glitter-like iridescence in reflection. Iridescence of C. lytica CECT 8139 was optically and physically characterized but physiological significance of the phenomenon was not. In the present work, we investigated the effect of key abiotic factors on C. lytica's growth and iridescence. Special attention was paid to conditions that mimic rocky shore ecosystem, the natural biotope of C. lytica. We found that C. lytica's iridescence required the presence of seawater. The phenomenon was not influenced by light exposure or plate orientation during growth. Cellulophaga lytica's iridescence occurred under a wide range of culture conditions notably under psychrophilic, halophilic, and hydric stress conditions. Changes in colonies' colors (blue, violet, red, yellow, and green) were linked to cell density. These data indicate that iridescence is induced under conditions that mimic the natural biotope of C. lytica.