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Biological Evolution: Unity and Diversity

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Biological Evolution: Unity and Diversity: Microorganisms and Their Roles

๊ณฐํŒก์ด ๋ฒˆ์‹

Description

๊ณฐํŒก์ด ๋ฒˆ์‹

๊ณฐํŒก์ด๋Š” ๋‹ค์–‘ํ•œ ๋ฐฉ์‹์œผ๋กœ ๋ฒˆ์‹ํ•˜๋Š” ๋งคํ˜น์ ์ธ ์ƒ๋ฌผ๋กœ, ์ˆฒ ๋ฐ”๋‹ฅ๋ถ€ํ„ฐ ๋นต ์กฐ๊ฐ๊นŒ์ง€ ๊ฑฐ์˜ ๋ชจ๋“  ๊ณณ์—์„œ ๋ฒˆ์„ฑํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋“ค์€ ์œ ์‚ฌ๋ถ„์—ด์„ ํ†ตํ•ด ํฌ์ž๋ฅผ ํ˜•์„ฑํ•˜์—ฌ ๋ฌด์„ฑ์ƒ์‹์„ ํ•˜๋ฉฐ, ์ด ํฌ์ž๋“ค์€ ์ˆ˜์ • ์—†์ด ์ƒˆ๋กœ์šด ๊ฐœ์ฒด๋กœ ์„ฑ์žฅํ•ฉ๋‹ˆ๋‹ค. ํฌ์ž๋‚ญ๊ณผ ๋ถ„์ƒ์ž์™€ ๊ฐ™์€ ๊ตฌ์กฐ๋Š” ๊ฐ€๋ฒผ์šด ํฌ์ž๋ฅผ ๋ฐฉ์ถœํ•˜๋Š” ๋ฐ ๋„์›€์„ ์ฃผ๋ฉฐ, ์ด ํฌ์ž๋Š” ํ˜น๋…ํ•œ ํ™˜๊ฒฝ์—์„œ๋„ ์ƒ์กดํ•˜๋ฉฐ ๋„๋ฆฌ ํผ์ง‘๋‹ˆ๋‹ค. ํ™˜๊ฒฝ์ด ๋ถˆ๋ฆฌํ•ด์ง€๋ฉด ๋งŽ์€ ๊ท ๋ฅ˜๊ฐ€ ์œ ์„ฑ ๋ฒˆ์‹์œผ๋กœ ์ „ํ™˜ํ•ฉ๋‹ˆ๋‹ค. ์ด ๊ณผ์ •์—์„œ ๋‘ ๊ฐ€์ง€ ์„œ๋กœ ๋‹ค๋ฅธ ๊ต๋ฏธ ์œ ํ˜•์˜ ๊ท ์‚ฌ๊ฐ€ ์œตํ•ฉํ•˜์—ฌ ์ ‘ํ•ฉํฌ์ž๋‚˜ ๋‹ค๋ฅธ ์œ ์„ฑ...

Transcript

๊ณฐํŒก์ด๋Š” ๋ฌด์„ฑ์ƒ์• , ์œ ์„ฑ์ƒ ๋ฒˆ์‹, ๊ทธ๋ฆฌ๊ณ  ๋‘ ๊ฐ€์ง€ ๋ชจ๋‘๋ฅผ ์ด์šฉํ•˜๋Š” ํฅ๋ฏธ๋กœ์šด ๋ฒˆ์‹ ๋ฐฉ์‹์„ ๊ฐ€์ง€๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

์ฒซ์งธ, ๋ฌด์„ฑ ์ƒ์‹์—์„œ๋Š” ๊ท ๋ฅ˜๊ฐ€ ์ง ์—†์ด ์ž์†์„ ์ƒ์‚ฐํ•ฉ๋‹ˆ๋‹ค. ์ผ๋ฐ˜์ ์ธ ๋ฐฉ๋ฒ• ์ค‘ ํ•˜๋‚˜๋Š” ํฌ์ž ํ˜•์„ฑ์œผ๋กœ, Rhizopus์™€ ๊ฐ™์€ ๊ณฐํ•€์—์„œ ๋ณผ ์ˆ˜ ์žˆ๋“ฏ์ด ๋ฌด์„ฑ ํฌ์ž๋ฅผ ์ƒ์„ฑํ•˜์—ฌ ์ ์ ˆํ•œ ์กฐ๊ฑด์—์„œ ์ƒˆ๋กœ์šด ๊ท ๋ฅ˜๋กœ ์„ฑ์žฅํ•ฉ๋‹ˆ๋‹ค.

๋˜ ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•์€ ์ถœ๋™(budding)์œผ๋กœ, ๋ชจ์„ธํฌ์—์„œ ์ž‘์€ ๋Œ์ถœ๋ถ€๊ฐ€ ํ˜•์„ฑ๋˜์–ด ์„ฑ์žฅํ•œ ํ›„ ๋…๋ฆฝ์ ์œผ๋กœ ์‚ด์•„๊ฐ€๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ํšจ๋ชจ๋Š” ์ข…์ข… ์ด๋ ‡๊ฒŒ ๋ฒˆ์‹ํ•ฉ๋‹ˆ๋‹ค.

๋˜ ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•์€ ๊ท ์‚ฌ์ฒด์˜ ์ผ๋ถ€๊ฐ€ ๋Š์–ด์ ธ ์ƒˆ๋กœ์šด ๊ท ์ฒด๋กœ ์„ฑ์žฅํ•˜๋Š” ํŒŒํŽธํ™”( fragmentation