Náttúrufræðingurinn - 2005, Page 31

Tímarit Hins íslenska náttúrufræðifélags
stað á milli bakteríutegunda.
Uppruni heilkjarnafrumna er
ráðgáta. Bæði er óvissa um uppruna
kjamans og það hvemig samband
tókst á milli hans eða forvera hans og
alfa-próteóbakteríu sem síðar varð að
hvatbera. Víst er hins vegar að þetta
frumuskipulag sló í gegn og nýttist
síðar til þróunar fjölfmmunga, m.a.
þeirra sem nú íhuga upphaf þess.
Bakteríuskipulagið hefur ekki síður
dugað vel. Þar sem er líf á jörðirtni
þar em bakteríur og stundum engar
aðrar lífvemr en þær.
Heimildir
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PÓSTFANG HÖFUNDAR/AUTHOR’S ADDRESS
Guðmundur Eggertsson
Líffræðistofnun háskólans
Sturlugata 7,
IS-101 Reykjavík
gudmegg@hi.is
Um höfundinn
Guðmundur Eggertsson (f. 1933) lauk magistersprófi í
erfðafræði frá Kaupmannahafnarháskóla 1958 og
doktorsprófi í örveruerfðafræði frá Yale-háskóla í
Bandaríkjunum 1965. Hann var prófessor í líffræði við
Háskóla íslands frá 1969-2003. Guðmundur vinnur að
rannsóknum á hitakærum örverum.
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