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Searching for a mate : pheromone-directed movement of the benthic diatom Seminavis robusta

(2016) MICROBIAL ECOLOGY. 72(2). p.287-294
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Abstract
Diatoms are species-rich microalgae that often have a unique life cycle with vegetative cell size reduction followed by size restoration through sexual reproduction of two mating types (MT+ and MT-). In the marine benthic diatom Seminavis robusta, mate-finding is mediated by an l-proline-derived diketopiperazine, a pheromone produced by the attracting mating type (MT-). Here, we investigate the movement patterns of cells of the opposite mating type (MT+) exposed to a pheromone gradient, using video monitoring and statistical modeling. We report that cells of the migrating mating type (MT+) respond to pheromone gradients by simultaneous chemotaxis and chemokinesis. Changes in movement behavior enable MT+ cells to locate the direction of the pheromone source and to maximize their encounter rate towards it.
Keywords
Diatoms, Chemoattraction, Pheromone, Chemokinesis, Chemotaxis, Mating success, Modeling, SEXUAL REPRODUCTION, ENCOUNTER RATES, ALGAE, CYCLE, EVOLUTIONARY, ORIENTATION, ATTRACTION, LOCOMOTION, BACTERIA, MOTILITY

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Citation

Please use this url to cite or link to this publication:

MLA
Bondoc, Karen Grace V et al. “Searching for a Mate : Pheromone-directed Movement of the Benthic Diatom Seminavis Robusta.” MICROBIAL ECOLOGY 72.2 (2016): 287–294. Print.
APA
Bondoc, K. G. V., Lembke, C., Vyverman, W., & Pohnert, G. (2016). Searching for a mate : pheromone-directed movement of the benthic diatom Seminavis robusta. MICROBIAL ECOLOGY, 72(2), 287–294.
Chicago author-date
Bondoc, Karen Grace V, Christine Lembke, Wim Vyverman, and Georg Pohnert. 2016. “Searching for a Mate : Pheromone-directed Movement of the Benthic Diatom Seminavis Robusta.” Microbial Ecology 72 (2): 287–294.
Chicago author-date (all authors)
Bondoc, Karen Grace V, Christine Lembke, Wim Vyverman, and Georg Pohnert. 2016. “Searching for a Mate : Pheromone-directed Movement of the Benthic Diatom Seminavis Robusta.” Microbial Ecology 72 (2): 287–294.
Vancouver
1.
Bondoc KGV, Lembke C, Vyverman W, Pohnert G. Searching for a mate : pheromone-directed movement of the benthic diatom Seminavis robusta. MICROBIAL ECOLOGY. 2016;72(2):287–94.
IEEE
[1]
K. G. V. Bondoc, C. Lembke, W. Vyverman, and G. Pohnert, “Searching for a mate : pheromone-directed movement of the benthic diatom Seminavis robusta,” MICROBIAL ECOLOGY, vol. 72, no. 2, pp. 287–294, 2016.
@article{8507295,
  abstract     = {Diatoms are species-rich microalgae that often have a unique life cycle with vegetative cell size reduction followed by size restoration through sexual reproduction of two mating types (MT+ and MT-). In the marine benthic diatom Seminavis robusta, mate-finding is mediated by an l-proline-derived diketopiperazine, a pheromone produced by the attracting mating type (MT-). Here, we investigate the movement patterns of cells of the opposite mating type (MT+) exposed to a pheromone gradient, using video monitoring and statistical modeling. We report that cells of the migrating mating type (MT+) respond to pheromone gradients by simultaneous chemotaxis and chemokinesis. Changes in movement behavior enable MT+ cells to locate the direction of the pheromone source and to maximize their encounter rate towards it.},
  author       = {Bondoc, Karen Grace V and Lembke, Christine and Vyverman, Wim and Pohnert, Georg},
  issn         = {0095-3628},
  journal      = {MICROBIAL ECOLOGY},
  keywords     = {Diatoms,Chemoattraction,Pheromone,Chemokinesis,Chemotaxis,Mating success,Modeling,SEXUAL REPRODUCTION,ENCOUNTER RATES,ALGAE,CYCLE,EVOLUTIONARY,ORIENTATION,ATTRACTION,LOCOMOTION,BACTERIA,MOTILITY},
  language     = {eng},
  number       = {2},
  pages        = {287--294},
  title        = {Searching for a mate : pheromone-directed movement of the benthic diatom Seminavis robusta},
  url          = {http://dx.doi.org/10.1007/s00248-016-0796-7},
  volume       = {72},
  year         = {2016},
}

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