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Ultrastructural Observations of Papaver rhoeas Mature Pollen Grains
Author(s) -
Cresti M.,
Milanesi C.,
Salvatici P.,
Aelst A. C.
Publication year - 1990
Publication title -
botanica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0932-8629
DOI - 10.1111/j.1438-8677.1990.tb00173.x
Subject(s) - endoplasmic reticulum , golgi apparatus , cytoplasm , ultrastructure , organelle , microbiology and biotechnology , biology , pollen , papaver , plastid , ribosome , botany , chloroplast , biochemistry , rna , gene
Summary The mature pollen grain of Papaver rhoeas is bicellular. The vegetative cell contains numerous mitochondria; endoplasmic reticulum is not very extensive and there are few ribosomes and plastids. Golgi bodies are in a very active state. The generative cell is lobed and spindle‐shaped. The cytoplasm contains many, generally longitudinally arranged, bundles of microtubules. Other organelles are few in number, and include mitochondria, Golgi bodies and short cisternae of endoplasmic reticulum.