Sind Zweifel an der Genetischen Kontinuität der Plastiden Berechtigt? Eine Stellungnahme Zu den Ansichten von Mühlethaler und Bell
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On the basis of electron micrographs of the egg cell ofPteridium aquilinumMühlethaler andBell (1962) have recently cast doubt upon the generally accepted theory of the continuity of the plastids. They assert that the nucleus forms plastids and mitochondriade novo after the latter have been broken down and eliminated.Mühlethaler andBell mistakenly believe that these findings agree most closely with the genetical results ofBaur, Correns, Renner and others concerning a maternal inheritance of the plastids. In the present paper it is shown that the findings inOenothera can be understood only on the basis of a continuity of the plastids.