Open AccessUltrastructure and oil secretion in Hiptage sericea Hook
Author(s) -
K Arumugasamy,
K. Udaiyan,
S. Manian,
V. Sugavanam
Publication year - 2014
Publication title -
acta societatis botanicorum poloniae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 29
eISSN - 2083-9480
pISSN - 0001-6977
DOI - 10.5586/asbp.1993.003
Subject(s) - cytoplasm , vacuole , endoplasmic reticulum , ultrastructure , nucleolus , biology , lipid droplet , microbiology and biotechnology , secretion , plastid , nucleus , vesicle , golgi apparatus , electron microscope , cytoplasmic inclusion , inclusion bodies , biochemistry , botany , chloroplast , physics , escherichia coli , membrane , gene , optics
The oil secreting glands of Hiptage sericea Hook. consist of three regions: epithelial, sub-epithelial and sub-glandular. In early stages, the oil secreting cells are characterized by the presence of plastids with starch grains and electron translucent vesicles, mitochondria, rER, polysomes, small vacuoles, numerous lipid bodies and well-defined nucleus with nucleolus. Later, the accumulation of plastoglobuli and inclusion bodies occur in the matrix of the plastid. Tubular, smooth endoplasmic reticulum begins to appear in the cytoplasm. With the onset of secretion, the osmiophilic contents of plastids which appear as electron dense, round droplets move-into cytoplasm and often occur in the region of the plasmalemma invaginations. However, in matured glands the lipid bodies disappear from the cytoplasm. The size of the vacuoles increases and are filled with electron opaque substance. Similar substances are also found in the sub-cuticular spaces as well as outside the cuticle