The ultrastructure of the larval malpighian tubules of a saline-water mosquito

Timothy J. Bradley, Alastair M. Stuart, Peter Satir

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The larval Malpighian tubules of the saline-water mosquito Aedes taeniorhynchus were examined using light and electron microscopy. The tubules contain two cell types: primary cells and stellate cells. Primary cells are characterized by their size (70 μm × 70 μm × 10 μm) and an abundance of intracellular membranebound crystals. Two types of microvilli are found on the luminal surface of the primary cells: (1) small microvilli containing core microfilaments and extensions of endoplasmic reticulum, and (2) larger microvilli (≈3 μm in length) which in addition to the above components contain a mitochondrion along their entire length. Both microvillar types have abundant knobs lining the cytoplasmic surface of the microvillar membrane. These knobs, which are often found in insect ion transporting tissues, have been termed 'portasomes' by Harvey (1980). The possible role of these structures in ion transport and mitochondrial positioning is discussed. The stellate cells are much smaller than the primary cells, and lack intracellular crystals. Their microvilli are smaller as well (≈0.6 μm in length) and contain no endoplasmic reticulum. mitochondria or knobs. The cells types found in the saline-water mosquito larva, Aedes taeniorhynchus, are identical to those found in Aedes aegypti, indicating that the unique capacity of saline-water mosquito larvae to transport Mg2+ and SO4|post|staggered|2- is not associated with the presence of an additional cell type.

Original languageEnglish (US)
Pages (from-to)759-773
Number of pages15
JournalTissue and Cell
Volume14
Issue number4
DOIs
StatePublished - 1982

Fingerprint

Malpighian Tubules
Malpighian tubules
Culicidae
saline water
ultrastructure
Microvilli
microvilli
Aedes
cells
Aedes taeniorhynchus
Endoplasmic Reticulum
endoplasmic reticulum
Larva
crystals
insect larvae
Mitochondria
mitochondria
Saline Waters
Ion Transport
ion transport

Keywords

  • cell junctions
  • cell types
  • Malpighian tubules
  • microvilli
  • mosquitoes

ASJC Scopus subject areas

  • Insect Science
  • Cell Biology

Cite this

The ultrastructure of the larval malpighian tubules of a saline-water mosquito. / Bradley, Timothy J.; Stuart, Alastair M.; Satir, Peter.

In: Tissue and Cell, Vol. 14, No. 4, 1982, p. 759-773.

Research output: Contribution to journalArticle

Bradley, Timothy J. ; Stuart, Alastair M. ; Satir, Peter. / The ultrastructure of the larval malpighian tubules of a saline-water mosquito. In: Tissue and Cell. 1982 ; Vol. 14, No. 4. pp. 759-773.
@article{46d60256917f4818a8716e1980e5056b,
title = "The ultrastructure of the larval malpighian tubules of a saline-water mosquito",
abstract = "The larval Malpighian tubules of the saline-water mosquito Aedes taeniorhynchus were examined using light and electron microscopy. The tubules contain two cell types: primary cells and stellate cells. Primary cells are characterized by their size (70 μm × 70 μm × 10 μm) and an abundance of intracellular membranebound crystals. Two types of microvilli are found on the luminal surface of the primary cells: (1) small microvilli containing core microfilaments and extensions of endoplasmic reticulum, and (2) larger microvilli (≈3 μm in length) which in addition to the above components contain a mitochondrion along their entire length. Both microvillar types have abundant knobs lining the cytoplasmic surface of the microvillar membrane. These knobs, which are often found in insect ion transporting tissues, have been termed 'portasomes' by Harvey (1980). The possible role of these structures in ion transport and mitochondrial positioning is discussed. The stellate cells are much smaller than the primary cells, and lack intracellular crystals. Their microvilli are smaller as well (≈0.6 μm in length) and contain no endoplasmic reticulum. mitochondria or knobs. The cells types found in the saline-water mosquito larva, Aedes taeniorhynchus, are identical to those found in Aedes aegypti, indicating that the unique capacity of saline-water mosquito larvae to transport Mg2+ and SO4|post|staggered|2- is not associated with the presence of an additional cell type.",
keywords = "cell junctions, cell types, Malpighian tubules, microvilli, mosquitoes",
author = "Bradley, {Timothy J.} and Stuart, {Alastair M.} and Peter Satir",
year = "1982",
doi = "10.1016/0040-8166(82)90064-7",
language = "English (US)",
volume = "14",
pages = "759--773",
journal = "Tissue and Cell",
issn = "0040-8166",
publisher = "Churchill Livingstone",
number = "4",

}

TY - JOUR

T1 - The ultrastructure of the larval malpighian tubules of a saline-water mosquito

AU - Bradley, Timothy J.

AU - Stuart, Alastair M.

AU - Satir, Peter

PY - 1982

Y1 - 1982

N2 - The larval Malpighian tubules of the saline-water mosquito Aedes taeniorhynchus were examined using light and electron microscopy. The tubules contain two cell types: primary cells and stellate cells. Primary cells are characterized by their size (70 μm × 70 μm × 10 μm) and an abundance of intracellular membranebound crystals. Two types of microvilli are found on the luminal surface of the primary cells: (1) small microvilli containing core microfilaments and extensions of endoplasmic reticulum, and (2) larger microvilli (≈3 μm in length) which in addition to the above components contain a mitochondrion along their entire length. Both microvillar types have abundant knobs lining the cytoplasmic surface of the microvillar membrane. These knobs, which are often found in insect ion transporting tissues, have been termed 'portasomes' by Harvey (1980). The possible role of these structures in ion transport and mitochondrial positioning is discussed. The stellate cells are much smaller than the primary cells, and lack intracellular crystals. Their microvilli are smaller as well (≈0.6 μm in length) and contain no endoplasmic reticulum. mitochondria or knobs. The cells types found in the saline-water mosquito larva, Aedes taeniorhynchus, are identical to those found in Aedes aegypti, indicating that the unique capacity of saline-water mosquito larvae to transport Mg2+ and SO4|post|staggered|2- is not associated with the presence of an additional cell type.

AB - The larval Malpighian tubules of the saline-water mosquito Aedes taeniorhynchus were examined using light and electron microscopy. The tubules contain two cell types: primary cells and stellate cells. Primary cells are characterized by their size (70 μm × 70 μm × 10 μm) and an abundance of intracellular membranebound crystals. Two types of microvilli are found on the luminal surface of the primary cells: (1) small microvilli containing core microfilaments and extensions of endoplasmic reticulum, and (2) larger microvilli (≈3 μm in length) which in addition to the above components contain a mitochondrion along their entire length. Both microvillar types have abundant knobs lining the cytoplasmic surface of the microvillar membrane. These knobs, which are often found in insect ion transporting tissues, have been termed 'portasomes' by Harvey (1980). The possible role of these structures in ion transport and mitochondrial positioning is discussed. The stellate cells are much smaller than the primary cells, and lack intracellular crystals. Their microvilli are smaller as well (≈0.6 μm in length) and contain no endoplasmic reticulum. mitochondria or knobs. The cells types found in the saline-water mosquito larva, Aedes taeniorhynchus, are identical to those found in Aedes aegypti, indicating that the unique capacity of saline-water mosquito larvae to transport Mg2+ and SO4|post|staggered|2- is not associated with the presence of an additional cell type.

KW - cell junctions

KW - cell types

KW - Malpighian tubules

KW - microvilli

KW - mosquitoes

UR - http://www.scopus.com/inward/record.url?scp=0020394307&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0020394307&partnerID=8YFLogxK

U2 - 10.1016/0040-8166(82)90064-7

DO - 10.1016/0040-8166(82)90064-7

M3 - Article

VL - 14

SP - 759

EP - 773

JO - Tissue and Cell

JF - Tissue and Cell

SN - 0040-8166

IS - 4

ER -