. Allgemeine Pflanzenkaryologie . Fig. 110. Synchytrium Die „Cleavage beginnt imSporangium an der Oberflä übrige Teil ist noch unzer-teilt. b das gleiche von der Ober-fläche gesehen. Vergr. 500.(Nach Harper.) Kerne (75 /o der Gesamtmenge) befanden sich sogar in einem Teilungs-stadium. Und „the cleavage planes would naturally follow zones ofgreatest waterloss thus isolating such acid-containing areas . . If thenuclei either by reason of their characteristic chemical content (nucleo-proteids, nuclear acid) or by the products of their metabolism couldthus become centers of mois
. Allgemeine Pflanzenkaryologie . Fig. 110. Synchytrium Die „Cleavage beginnt imSporangium an der Oberflä übrige Teil ist noch unzer-teilt. b das gleiche von der Ober-fläche gesehen. Vergr. 500.(Nach Harper.) Kerne (75 /o der Gesamtmenge) befanden sich sogar in einem Teilungs-stadium. Und „the cleavage planes would naturally follow zones ofgreatest waterloss thus isolating such acid-containing areas . . If thenuclei either by reason of their characteristic chemical content (nucleo-proteids, nuclear acid) or by the products of their metabolism couldthus become centers of moisture retention we should have a factor whichwould tend to such an orientation of the cleavage planes as in the endwould produce uninucleated spore units. The chemical changes in thecolloids in such acid region might lead even to the visible differentiationof the hyaline zones which in the later stages of cleavage in Fuligo andthe spore embryos of Piloholus seem to predetermine the planes of thecleavage furrows. Also die
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectplantce, bookyear1921
