tapetal การใช้

• When the PMCs are in leptotene-zygotene, very few tapetal nuclei are in endomitosis.
• No sign of the so-called " inhibited " mitosis is seen in these tapetal cells.
• Plants in the order share a number of synapomorphies that tie them together, such as a lack of tapetal raphides.
• Chemical inhibitors of pollen development and many male sterile mutants have effects on the secretion of these globules by the tapetal cells.
• Amongst the late branching clades, the lilioid monocots are nearly all secretory while the commelinid monocots are diverse with respect to tapetal pattern.
• Electron microscopy shows that the tapetal cells that surround the developing pollen grain in the anther have a highly active secretory system containing lipophilic globules.
• When the pollen mother cells ( PMCs ) go through the last premeiotic mitosis, the tapetal cells have one diploid nucleus which divides while the cell remains undivided.