Microtopographic Cues for Settlement of Zoospores of the Green Fouling Alga Enteromorpha

Callow, Maureen E.; Jennings, Alice R; Brennan, Anthony B.; Seegert, C E; Gibson, Amy L.; Wilson, Leslie H.; Feinberg, Adam W.; Baney, Ronald H.; Callow, James A.

doi:10.1080/08927010290014908

Cited by 269 publications

(198 citation statements)

References 21 publications

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“…Interestingly the deceleration shows the same trend as the 45 min settlement assay ( Fig. 5b) [61,62]. However, the surface does not only influence the swimming speed of the spores, but also their behavior.…”

Section: Swimming Zoospores Explore Surfaces and Respond To Surface Cuessupporting

confidence: 58%

“…This, in turn, is affected by the chemical termination of the surface [35,64]. The Callow group established an assay that allows spores to settle within 45 min to surfaces in order to compare the spore accumulation rate on different surfaces and thus to discriminate their non-fouling potential [62]. A vast number of experiments demonstrated that the settlement kinetics of zoospores of Ulva is affected by a number of physical and chemical surface cues, such as wettability [31,64,67,68], topography [69][70][71][72], and charge [73,74].…”

Section: Surface Cues Can Trigger Permanent Adhesion Of Zoospores Of mentioning

confidence: 99%

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Surface Sensing and Settlement Strategies of Marine Biofouling Organisms

Rosenhahn

Sendra

2012

Biointerphases

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This review article summarizes some recent insights into the strategies used by marine organisms to select surfaces for colonization. While larger organisms rely on their sensory machinery to select surfaces, smaller microorganisms developed less complex but still effective ways to probe interfaces. Two examples, zoospores of algae and barnacle larvae, are discussed and both appear to have build-in test mechanisms to distinguish surfaces with different physicochemical properties. Some systematic studies on the influence of surface cues on exploration, settlement and adhesion are summarized. The intriguing notion that surface colonization resembles a parallelized surface sensing event is discussed towards its complementarity with conventional surface analytical tools. The strategy to populate only selected surfaces seems advantageous as waves, currents and storms constantly challenge adherent soft and hard fouling organism.

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Section: Swimming Zoospores Explore Surfaces and Respond To Surface Cuessupporting

confidence: 58%

Section: Surface Cues Can Trigger Permanent Adhesion Of Zoospores Of mentioning

confidence: 99%

Surface Sensing and Settlement Strategies of Marine Biofouling Organisms

Rosenhahn

Sendra

2012

Biointerphases

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“…The increasing deceleration of the spores in the order FOTS [ AWG [ PEG indicates a stronger initial surface interaction between the spores and the hydrophobic FOTS surface as compared to the PEG coating. The result of a standard spore settlement assay (after 45 min exposure to a zoospore solution) [24] is shown in Fig. 3c.…”

Section: Resultsmentioning

confidence: 99%

“…Spore counts were taken using a Kontron 3000 image analysis system attached to a Zeiss epifluorescence microscope. Spores were visualized by autofluorescence of chlorophyll and counts were recorded for 30 fields of view on each replicate slide as described by Callow et al [24].…”

Section: Preparation Of Zoospore Suspensionmentioning

confidence: 99%

Settlement Behavior of Zoospores of Ulva linza During Surface Selection Studied by Digital Holographic Microscopy

et al. 2012

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Settlement of the planktonic dispersal stages of marine organisms is the crucial step for the development of marine biofouling. Four-dimensional holographic tracking reveals the mechanism by which algal spores select surfaces suitable for colonization. Quantitative analysis of the three dimensional swimming trajectories of motile spores of a macroalga (Ulva linza) in the vicinity of surfaces functionalized with different chemistries reveals that their search strategy and swimming behavior is correlated to the number of settled spores found in spore settlement bioassays conducted over 45 min. The spore motility and exploration behavior can be classified into different motion patterns, with their relative occurrence changing with the surface chemistry. Based on the detailed motility analysis we derived a model for the surface selection and settlement process of Ulva zoospores.

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“…Natural cues from biofilms (Keough & Raimondi 1996, Harder et al 2002, Huggett et al 2006, macroalgae (Morse & Morse 1984, Walters et al 1996, Swanson et al 2004) and conspecifics (Jensen & Morse 1990, Zimmer-Faust & Tamburri 1994 can induce settlement of invertebrates. Acceptance or rejection of a surface has also been correlated to the surface profile (roughness), including microtexture (Berntsson et al 2000, Scardino & de Nys 2004, Schumacher et al 2007 or the number of adhesion points an organism can make on a surface (Callow et al 2002, Scardino et al 2008. Although habitat selection by larvae should be adaptive, studies demonstrate that larvae can make poor or maladaptive settlement choices that reduce individual fitness or key performance traits (Connell 1961, Williamson et al 2004, Gribben et al 2009a.…”

Section: Introductionmentioning

confidence: 99%

Larval settlement preference of a native bivalve: the influence of an invasive alga versus native substrata

Gribben

Wright²,

O’Connor³

et al. 2009

Aquat. Biol.

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Recruitment patterns of marine invertebrates are strongly influenced by the habitat preference of larvae as larvae can choose to settle (or not) in response to positive or negative cues. High abundances of recruits of the native infaunal bivalve Anadara trapezia occur in the invasive alga Caulerpa taxifolia compared to native habitats. Using controlled laboratory experiments, A. trapezia larval habitat preference was investigated through exposure to available native (adult A. trapezia, Zostera capricorni and sediment from unvegetated areas) and invasive (C. taxifolia and sediments from C. taxifolia) substrata that co-occur in estuaries invaded by C. taxifolia in New South Wales, Australia. When exposed to all substrata, larval settlement was significantly higher on adults compared to all other substrata except Z. capricorni. Although settlement to C. taxifolia was low, larvae did not reject it as settlement surface. In pairwise comparisons, larval settlement was always higher on adults compared to all other substrata, although differences were only significant compared to C. taxifolia and unvegetated sediments. There was no difference in settlement when larvae were exposed to Z. capricorni and C. taxifolia. When offered a single substratum, larval settlement was significantly higher on adults and Z. capricorni compared to all remaining substrata. Manipulations of shells of adults indicated that larvae may be responding positively to biofilms on the surface of shells. The data indicate that A. trapezia larvae prefer to settle on adults and, while they do not prefer C. taxifolia, they do not reject it as a settlement surface. Therefore, C. taxifolia may serve as a sink habitat for A. trapezia.

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Microtopographic Cues for Settlement of Zoospores of the Green Fouling Alga Enteromorpha

Cited by 269 publications

References 21 publications

Surface Sensing and Settlement Strategies of Marine Biofouling Organisms

Surface Sensing and Settlement Strategies of Marine Biofouling Organisms

Settlement Behavior of Zoospores of Ulva linza During Surface Selection Studied by Digital Holographic Microscopy

Larval settlement preference of a native bivalve: the influence of an invasive alga versus native substrata

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