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Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
Published on: November 11, 2016
Functional synchronization of biological rhythms in a tritrophic system
Sufang Zhang1, Jianing Wei, Xiaojiao Guo
1State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Plos One
|June 17, 2010
Summary
Biological rhythms in plant-herbivore-enemy systems show bidirectional correlations. Rhythms synchronize via light and chemical signals, offering potential for natural enemy manipulation.
Area of Science:
- Ecology
- Behavioral Ecology
- Chronobiology
Background:
- Tritrophic systems (plant-herbivore-natural enemy) possess individual biological rhythms.
- Interactions and synchronized rhythms among these three trophic levels are poorly understood.
Purpose of the Study:
- Investigate rhythm correlations and underlying mechanisms in a lima bean-pea leafminer-parasitoid tritrophic system.
- Determine how organisms synchronize their biological rhythms.
Main Methods:
- Observational studies of biological rhythms in a controlled tritrophic system.
- Analysis of plant volatile emissions and parasitoid behavior.
- Manipulation of light conditions (light-dark, constant light, constant dark).
Main Results:
- Herbivore feeding initiated rhythms in plant volatile emissions.
- Parasitoid activity rhythms were influenced by plant volatiles and synchronized by light cues.
- Parasitoids used rhythmic volatile information to locate hosts, with effectiveness dependent on light.
- Rhythmic synchronization occurred under natural light-dark cycles but not constant light or darkness.
Conclusions:
- Tritrophic interactions can lead to rhythmic functional synchronization.
- Light and chemical cues are crucial for synchronizing biological rhythms in these systems.
- Findings offer insights for manipulating natural enemies through understanding rhythmic interactions.
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