New PDF release: Strukturtypen der Ruhekerne von Pflanzen und Tieren

Biology

By Elisabeth Tschermak-Woess (auth.)

ISBN-10: 3211806539

ISBN-13: 9783211806531

ISBN-10: 3709154731

ISBN-13: 9783709154731

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Additional info for Strukturtypen der Ruhekerne von Pflanzen und Tieren

Sample text

Tn den diploiden kann sich da,; lockere allerdings del' Beohachtung entziehen. H. ir die genannten Aden nicht zu. Vielleidl! 'I'inl es aueh bei benaehbarter Lage in den cliploiden Kernen mit in die kompakten Chromozcntren einhezogen und tritt erst mit cler Polyploidisicrung l1e1'\'or ; fiir ll'tzteres sprechcn Befuncle an Rhillantlllu; (TSCHERMAK-VVOESS 195, a). 28 V 11: ELISABETH T SCHERMAK-WOESS, Strukturtypen del' Ruhekerne starker verkleben, so ,daR ihr Vorhandensein sich nur lllehr an den lllehr oder minder regellllaRig vorspringenden Konturen und eventuell auch an dem Vorhandensein von Vakuolen erkennen laRt.

Bb. 16. ,,, upyeri. C'hromati"ehcr In halt der Kernc jllngcr Bliitter. nach J AKOWSKA 1951. ~ •••• Feu l ~en(lllebrhmet h ode. ~200bch. auch Bilder in einer alteren Arbeit von DELAY (1941) deuten daranf hin: ll1ancbe Kerne - besonders in der Epidermis gelegene - haben einen Chromoll1erenbau wie viele Liliaceen und wirken nahezu gleichmaflig enchrol11atisch; in anderen besteht offcnbar ein nicht genau auflosbarer Hidiger Bau und weiters gibt es Kerne, wie DELAY (1946/48) sie schilderi, "owie verscbiedene Dbergange.

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Strukturtypen der Ruhekerne von Pflanzen und Tieren by Elisabeth Tschermak-Woess (auth.)


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