go to jove.com

HIGH SCHOOL

Biology

Concept Videos

Microbiology

This is a free preview. For full access

Microbial Diversity

Planctomycetes Cell Structure and Life Cycle

Description

Planctomycetes are a group of gram-negative bacteria known for unusual cell structures and a distinctive life cycle. They are mainly placed in two orders, Planctomycetales and Brocadiales. Many cells show stalks or other appendages and often appear in rosette groups.

A key feature of these bacter...

Transcript

Planctomycetes๋Š” Planctomycetales์™€ Brocadiales์˜ ๋‘ ๊ฐ€์ง€ ์ˆœ์„œ๋กœ ๋ถ„๋ฅ˜๋ฉ๋‹ˆ๋‹ค.

์ด ๊ทธ๋žŒ ์Œ์„ฑ ๋ฐ•ํ…Œ๋ฆฌ์•„๋Š” ๋…ํŠนํ•œ ํŠน์ง•์„ ๋ณด์ž…๋‹ˆ๋‹ค. ๊ทธ๋“ค์€ ์‹น์„ ํ‹”์šฐ๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜๋‰ฉ๋‹ˆ๋‹ค. ์ผ๋ถ€๋Š” ์ค„๊ธฐ๋‚˜ ๋ถ€์†๋ฌผ์„ ๊ฐ€์ง€๊ณ  ์žˆ๊ณ  ๋‹ค๋ฅธ ์ผ๋ถ€๋Š” ์žฅ๋ฏธ์™€ ๊ฐ™์€ ์„ธํฌ ๋ฐฐ์—ด์„ ํ˜•์„ฑํ•ฉ๋‹ˆ๋‹ค. ํŠน์ • ์ข…์€ ์„ธํฌ ์™ธํ”ผ์— S-์ธต์„ ๊ฐ€์ง€๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

๋ชจ๋“  Planctomycetes๋Š” ์ง„ํ•ต ์„ธํฌ ์†Œ๊ธฐ๊ด€๊ณผ ์œ ์‚ฌํ•œ ์„ธํฌ ๋‚ด ๊ตฌํš์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค.

๊ทธ๋“ค์€ ํ”ผ๋ ๋ฃฐ๋กœ์†œ(pirellulosome)์œผ๋กœ ์•Œ๋ ค์ง„ ํŠน์ˆ˜ ๊ตฌ์กฐ๋ฅผ ์ƒ์„ฑํ•˜๋ฉฐ, ์ด๋Š” ๋‰ดํด๋ ˆ์˜ค์ด๋“œ, ๋ฆฌ๋ณด์†œ ๋ฐ ๊ธฐํƒ€ ์„ธํฌ์งˆ ๊ตฌ์„ฑ ์š”์†Œ๋ฅผ ํฌํ•จํ•˜๋Š” ๋น„๋‹จ์œ„ ๋ง‰์œผ๋กœ ...

Tags