False colour transmission electron micrograph of a thin section through an endospore of Bacillus subtilis (the hay bacillus"), a species of aerobic, rod- shaped, gram positive bacteria. Endospores (resting cells) are produced in response to nutritional deficiency & adverse conditions, and may later germinate to form a vegetative bacterial cell, if conditions improve. The image shows the thick outer spore coat overlying an layered inner coat. Around the central cytoplasm is a thin membrane that is surrounded by the cortex (lightly stained); central nuclear material appears darkly stained & is arranged in filaments. Mag: X24300 at 35mm size. Original is bw print b220/166."
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Details
Creative#:
TOP10166255
Source:
達志影像
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RM
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須由TPG 完整授權
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