Chemical aspects of mass spawning in corals. I. Sperm-attractant molecules in the eggs of the scleractinian coral Montipora digitata

Coll, John C.; Bowden, Bruce F.; Meehan, George V.; König, G. M.; Carroll, Anthony Richard; Tapiolas, Dianne M.; Aliño, P. M.; Heaton, Andrew; Nys, Rocky de; Leone, P.; Maida, Mauro; Aceret, T.L.; Willis, Richard H.; Babcock, Russell C.; Willis, Bette L.; Florian, Z.; Clayton, M. N.; Miller, Richard L.

doi:10.1007/bf00349783

Cited by 145 publications

(104 citation statements)

References 14 publications

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“…Another possibility accounting for the lack of mass spawning locally is the non-presence of chemical messengers, which could be triggered by either other invertebrates or different coral species. Coll et al (1989Coll et al ( , 1990Coll et al ( , 1994 and Atkinson & Atkinson (1992) have shown that coral spawning may be chemically mediated. On Japanese reefs, contagious spawning events occur as the gametes from 1 coral colony stimulate others of the same species downcurrent to release their eggs and sperm upon contact with the gamete cloud (Richmond 1997).…”

Section: Coral Spawningmentioning

confidence: 99%

Sexual reproduction of a low-temperature tolerant coral Oulastrea crispata (Scleractinia, Faviidae) in Hong Kong, China

Lam

2000

Mar. Ecol. Prog. Ser.

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In December 1993, an experimental artificial reef made of pulverised fuel ash (PFA) and concrete was deployed at Hoi Ha Wan Marine Park, Hong Kong. The reproductive biology of Oulastrea crispata, the pioneer species recruited onto the structure, was studied to ascertain its reproductive strategies, including its gametogenic cycle in terms of oocyte and spermary development and timing of planula release. A histological study showed that O. crispata was hermaphroditic and had an annual gametogenic cycle with an extended spawning period from July to October. Planulae were released in the resting period of the gametogenic cycle. With an opportunist life history trait, including a wide range of reproductive strategies, O. crispata is able to colonize a variety of substrata, including those unfavourable to other corals, and to flourish as the pioneer colonizer of newly immersed structures.

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Section: Coral Spawningmentioning

confidence: 99%

Sexual reproduction of a low-temperature tolerant coral Oulastrea crispata (Scleractinia, Faviidae) in Hong Kong, China

Lam

2000

Mar. Ecol. Prog. Ser.

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“…Alignment investigations over the mature peptide sequence demonstrated no significant similarities with other polypeptides from other organisms, thus suggesting a species-specificity of this molecule. Currently, species-specific sperm responses to egg extracts have been reported for eight nonmammalian species, such as ascidians (Yoshida et al, 2002), coral (Coll et al, 1994), sea urchins (Guerrero et al, 2010), a starfish (Böhmer et al, 2005), a cuttlefish (Zatylny et al, 2002), an abalone (Riffell et al, 2002) and an amphibian (Olson et al, 2001). In the mollusk cephalopod S. officinalis, various sperm attractant factors have been purified; in this case, external fertilization occurs within the arm bundle that creates a 'protected' site for gamete fusion (Zatylny et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

Sperm-attractant peptide influences the spermatozoa swimming behavior in internal fertilization in Octopus vulgaris

Lisa

Salzano

Moccia

et al. 2013

Journal of Experimental Biology

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SUMMARYMarine invertebrates exhibit both chemokinesis and chemotaxis phenomena, induced in most cases by the release of water-borne peptides or pheromones. In mollusks, several peptides released during egg-laying improve both male attraction and mating. Unlike other cephalopods, Octopus vulgaris adopts an indirect internal fertilization strategy. We here report on the identification and characterization of a chemoattractant peptide isolated from mature eggs of octopus females. Using two-chamber and timelapse microscopy assays, we demonstrate that this bioactive peptide is able to increase sperm motility and induce chemotaxis by changing the octopus spermatozoa swimming behavior in a dose-dependent manner. We also provide evidence that chemotaxis in the octopus requires the presence of extracellular calcium and membrane protein phophorylation at tyrosine. This study is the first report on a sperm-activating factor in a non-free-spawning marine animal.

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“…On the other hand, nonproteinaceous chemoattractants have been identifi ed in coral and ascidians: the chemoattractant of the coral Montipora digitata is an unsaturated fatty alcohol (Coll et al 1994 ), and those of the ascidians Ciona intestinalis and Ascidia sydneiensis (Yoshida et al 2002 ;Matsumori et al 2013 ) are sulfated hydroxysterols. Mammalian spermatozoa also show chemotactic behavior, and many candidate chemoattractants for spermatozoa have been proposed (Eisenbach and Giojalas 2006 ).…”

Section: Chemical Nature Of Sperm Chemoattractantsmentioning

confidence: 99%

Sperm Chemotaxis: The First Authentication Events Between Conspecific Gametes Before Fertilization

Yoshida¹

2014

Sexual Reproduction in Animals and Plants

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Sperm chemotaxis toward eggs before fertilization has been observed in many living organisms. Sperm chemotaxis is the fi rst communication or signaling event between male and female gametes in the process of fertilization, and speciesspecifi c events occur in many cases. Thus, sperm chemotaxis may act as a safety process for authenticating that fertilization occurs between conspecifi c egg and sperm and helps to prevent crossbreeding. Here, we introduce mechanisms of sperm chemotaxis, focusing on cross-talk between gametes and species specifi city. Furthermore, we discuss the interactions between sperm-activating and spermattracting factors (SAAFs) in the ascidian species and that SAAF receptors on sperm cells are not all-or-none responses. The SAAF receptors may accept SAAFs of related species (closely related molecules), with different affi nities.

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Chemical aspects of mass spawning in corals. I. Sperm-attractant molecules in the eggs of the scleractinian coral Montipora digitata

Cited by 145 publications

References 14 publications

Sexual reproduction of a low-temperature tolerant coral Oulastrea crispata (Scleractinia, Faviidae) in Hong Kong, China

Sexual reproduction of a low-temperature tolerant coral Oulastrea crispata (Scleractinia, Faviidae) in Hong Kong, China

Sperm-attractant peptide influences the spermatozoa swimming behavior in internal fertilization in Octopus vulgaris

Sperm Chemotaxis: The First Authentication Events Between Conspecific Gametes Before Fertilization

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