Mafitsara - wani nau'i na da ake dasu rayuwa. Ayyuka da kuma iri daban-daban

Zai yiwu, a cikin yanayi babu wani karin survivable da kuma saba da yanayi na kwayoyin fiye da kwayoyin. Wadannan unicellular rayuwa siffofin iya withstanding da babban canje-canje a cikin zazzabi, matsa lamba da kuma acidity. Waɗancan sunã a cikin wani fari na dogon lokaci ba tare da ruwa, da kuma a kan abin da ya faru na m muhalli dalilai sake komawa zuwa rayuwa. Kamar yadda kwayoyin cuta na iya tsira inda wasu kwayoyin aka kashe?

Mene ne wani mafitsara a ilmin halitta

A kwayoyin ne iya tsira m yanayi amfani encystment. Jigon wannan tsari ne cewa kwayan Kwayoyin kewaye da m harsashi. A gaskiya, wannan shi ne daidai da dalilin da cewa kwayoyin ba su ji tsoron fari ko zazzabi canji.

Mafitsara - shi ne wani nau'i na wanzuwar kwayoyin da abin da suka kasance iya tsira a ƙarƙashin rinjayar m dalilai. Wannan m kuma Na'urar tsarin ne na hali ba kawai ga prokaryotic kwayoyin, amma kuma ga wasu protists.

Features quiescent Kwayoyin

Mafitsara - wannan shi ne sosai musamman nau'i na kwayoyin cuta, wadda take kaiwa zuwa wasu canje a cikin cell. Wadannan su ne siffofin da dogara a kan irin encystment, amma akwai wasu janar halaye na tsari. Da fari dai, tantanin halitta ne kafa m kusa da dakile harsashi, wanda shi ne wani shãmaki to m muhalli dalilai.

Duk da haka encystation gaba daya, ko partially toshe sadarwa Kwayoyin da yanayi, don haka da kwayoyin bukatar shirya domin samuwar wani m harsashi. Da farko kwayoyin stockpile abu masarufi da kuma enzymes, wanda zai yi aiki ko da a encystment. Sa'an nan, da cell hasarar wasu da tsarin, domin dan lokaci cire ba dole ba a lokacin makamashi ta halin kaka.

Mafitsara - wannan shi ne daya daga cikin matakai na rayuwa sake zagayowar na da yawa kwayoyin. Haka kuma, encystment tsari ne lokaci-lokaci. Wasu cysts iya zama mai yiwuwa bayan 5 ko 10 shekaru. Akwai shaida da cewa cysts na protozoa iya rayuwa har zuwa shekaru 16. Yana bada dama don kiran mafi tenacious kwayoyin a duniya.

Abubuwan Gudunmawa encystation

Nazarin kwayoyin a awon yanayi ya nuna cewa mafi kyau na'urar for fuskantar m yanayi ne mafitsara. Tabbatar da dalilin da encysted Kwayoyin a Petri yi jita-jita a ƙarƙashin rinjayar daban-daban dalilai nuna muhimmancin m cell bango. Mene ne abubuwan da sa da samuwar cysts?

1. Canje-canje a cikin zazzabi.

2. Change a cikin taro na solutes a cikin matsakaici.

3. Vaporization na ruwa (dehumidification ruwa).

4. The rashin ko wuce haddi na oxygen.

5. Rashin abinci albarkatu.

A karshe aya ne mai kowa hanyar encystment kwayoyin. Idan Petri tasa zuwa girma a mallaka na kwayoyin cuta, da abinci a karshen cikin stock rinjaye daga cikin sel Saide a cikin nau'i na cysts. Idan matsakaici shi ne mai arziki a cikin gina jiki, yiwuwar encystment kadan.

Wasu kungiyoyin na kwayoyin mafitsara siffofin da kuma karkashin daban-daban yanayi. Alal misali, ciliates, wannan tsari wajibi ne ga rearrangements nukiliya na'urar ciki da cell. Encystation parasitic eukaryotic Kwayoyin faruwa domin fito daga rundunar sojoji, ya samu shiga cikin m rai yanayi. Wasu wakilan da prokaryotes da eukaryotes amfani cysts ga haifuwa.

iri encystment

A dalilai ga abin da kwayoyin wuce a cikin mafitsara mataki? Ga 'yan iri encystment, wanda aka fi sau da yawa samu a yanayi.

1. Allaha cysts.

Wadannan siffofin da kwayoyin cuta da kuma protists an kwatanta encystment, cikinsa da tantanin halitta yana fuskantar m muhalli da yanayi.

2. Cysts haifuwa.

Wannan irin halayyar ne ga mutane da yawa wakilan ciliates. A wannan yanayin, da cysts samar da wata isasshe bakin ciki membrane, da kuma cell fara raba akai-akai. A sakamakon haka, da mafitsara bursts da haske ke fita a manyan yawan kofe na masu juna biyu kwayoyin.

3. Cysts narkewa.

Irin wannan siffofin Kwayoyin suna rare a cikin 'yan jinsin kwayoyin. Ga mafitsara - a ga kayan aiki da tasiri narkewa. Wannan irin encystment halayyar kwayoyin, da yara, wanda bayan "cin" na azabtar samar da wata fata da kuma fara nike da ganima.