Structure and Function of Nematodes

 

Contents

  Rev. 10/30/2019

Molecular Level

Structure Function  

Cellular Level

Structure Function  

Tissue and Organ Level

Structure Function  

Individual Level

Structure Function  

Population Level

Structure Function  

Community Level

Structure Function Go to Nemaplex Home Page

Molecular Structure of Nematodes

Complete genome of Caenorhabditis elegans sequenced ca 1995.

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Molecular Function of Nematodes

Importance of  Caenorhabditis elegans mutants.

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Cellular Structure of Nematodes

Polar (phospho) lipids as structural components of cell membranes.

C20 PLFAs as nematode indicators.

Realignment of polar lipids in cell membranes at basal temperature thresholds (Lyons and Thomason).

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Cellular Function of Nematodes

Neutral lipids as storage reserves.  Van Gundy andRackham studies on lipid depletion with starvation.

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Tissue and Organ Structure of Nematodes

Caenorhabditis elegans cell lineage.

Apoptosis-programmed cell death.

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Tissue and Organ Function of Nematodes

Movement, Excretion, Sensory functions, reproductive functions.

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Organismal Structure of Nematodes

Cuticle, hypodermis, muscle layers, tubular intestine and gonad.

Drawings by Charles S. Papp, CDFA
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Organismal Function of Nematodes

Respiration, respiration as a 0.75 exponent of body weight.

Resource partitioning - gonad to body volume ratio.

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Population Structure of Nematodes

Sex ratios, population age structure.  C. elegans aging profiles, longevity.

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Population Function of Nematodes

Mutualism and competition, effects on fecundity.  Equilibrium densities, carrying capacity.

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Community Structure of Nematodes

Trophic levels; positions in the soil food web.

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Community Function of Nematodes

Regulation within the food web, mineralization, bioindicators.

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