Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 68American Philosophical Society, 1929 |
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Сторінка 152
... lead inhibits growth by cell division and specifically . Using roots of seedlings grown in lead - containing culture . solutions it was found that a lead - containing deposit is con- centrated in the meristematic region , or region of ...
... lead inhibits growth by cell division and specifically . Using roots of seedlings grown in lead - containing culture . solutions it was found that a lead - containing deposit is con- centrated in the meristematic region , or region of ...
Сторінка 153
... lead and increasingly with increasing concentra- tions . From these results it is clear that growth is retarded be- cause mitosis is inhibited , not because cell growth in size is adversely affected . In order to be sure that the ...
... lead and increasingly with increasing concentra- tions . From these results it is clear that growth is retarded be- cause mitosis is inhibited , not because cell growth in size is adversely affected . In order to be sure that the ...
Сторінка 154
... lead deposit is a combination between the metal and a sulfhydryl containing compound , analogous to , if not gluta ... lead specifically inhibits mitosis . In the second place the nuclear activity of mitosis is associated with a lead ...
... lead deposit is a combination between the metal and a sulfhydryl containing compound , analogous to , if not gluta ... lead specifically inhibits mitosis . In the second place the nuclear activity of mitosis is associated with a lead ...
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Mans Future in the Light of His Past and Present By ALEŠ | 1 |
The Vegetation of the Screes or Talus Slopes of Western North | 13 |
Saxifraga Tolmiei Torr Gray a screecoverer | 20 |
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