Abstract
The present paper incorporates a detailed study on the distribution of 5-nucleotidase in the germinating pollen grains ofEschscholtzia califomica. The intense activity of this enzyme has been found in the wall of pollen grains and pollen tubes and small positive granules in the lumen of both in the pollen grains and pollen tubes. The presence of this enzyme in the wall is presumably connected with the permeability and transport process and growth regulation of the pollen tubes.
Abstract
Jsou popsány výsledky podrobného studia o rozmístění 5-nukleotidázy v klíčí cím pyluEschscholtzia californica. Vysoká aktivita tohoto enzymu byla zjištěna jednak ve stěnách, jednak v malých částioíoh ve vnitřním prostoru, a to jak pylových zrn, tak pylových láč ek. Předpokládá se, že vysoké množství enzymu ve stěně má význam pro její permeabilitu a pro regulaci růstu láček.
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Tewari, H.B., Malik, C.P. & Sood, P.P. Histochemical studies on the distribution of 5-nucleotidase in the germinating pollen grains ofEschscholtzia californica cham.. Biol Plant 14, 269–272 (1972). https://doi.org/10.1007/BF02935851
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DOI: https://doi.org/10.1007/BF02935851