Development of epithallial cells in Corallina officinalis and Lithophyllum impressum (Corallinales, Rhodophyta)

Pueschel, Curt M.; Miller, Theresa J.; McCausland, Barbara B.

doi:10.2216/i0031-8884-35-2-161.1

Cited by 14 publications

(7 citation statements)

References 12 publications

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“…Epi/hallial cell dezlelopmwt. Epithallial cell development in C. circuinscriptum is generally similar to that of Lithophjlluin imprrssum (Pueschel et al 1996), which also has multicellular epithallial filaments. Differences include the apparent dedifferentiation of chloroplasts in healthy terminal and subterminal epithallial cells of L. impressurn.…”

Section: Discussionmentioning

confidence: 87%

“…Absence of starch from epithallial cells has been reported for several coralline algae (e.g. Borowitzka and Vesk 1978, 1979, Pueschel et al 1996. However, starch was said to occur in the epithallus of C. circumscriptum, and it was believed that the starch made epithallial cells of this alga a better food source for the limpets than epithallial cells of other species (Steneck 1982).…”

Section: Discussionmentioning

confidence: 97%

“…Our study demonstrates that C. circumscriptum possesses no exceptional anatomical features that would promote or might result from a mutualistic relationship with the limpet T. testudinnlis. Epithallial cells senesce and shed in C. circumcriptuni, as they do in the ecologically and anatomically similar species L. inzprpssum (Pueschel et al 1996). Therefore, neither the evolution of a thick epithallial layer nor mutualism with grazers arose from a loss of epithallial sloughing (Steneck 1982).…”

Section: Discussionmentioning

confidence: 99%

“…Chloroplasts in the top one or two layers of epithallial cells in L. impressutn have highly irregular morphology and large areas of thylakoid-free stroma, features that suggest reduced photosynthetic activity. However, the majority of epithallial cells have normal chloroplasts (Pueschel et al 1996). I t seems likely that significant photosynthetic capacity of epithallial cells is a prerequisite for the formation of a thick epithallus.…”

Section: Discussionmentioning

confidence: 99%

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RECONSIDERING PREY SPECIALIZATIONS IN AN ALGAL‐LIMPET GRAZING MUTUALISM: EPITHALLIAL CELL DEVELOPMENT INCLATHROMORPHUM CIRCUMSCRIPTUM(RHODOPHYTA, CORALLINALES)¹

Pueschel

Miller

1996

Journal of Phycology

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The association of the limpet Tectura testudinalis (Müller 1776) and the crustose coralline red alga Clathromorphum circumscriptum (Strömfelt) Foslie (Melobesioideae) is considered a species‐specific mutualism between grazer and prey. Anatomical features of C. circumscriptum, especially those associated with epithallial cells, have been viewed as being unusual and directly related to the mutualism. Transmission and scanning electron microscopic methods were used to investigate the structure and development of epithallial cells in C. circumscriptum. Contrary to prior reports, terminal cells of the epithallial filaments of C. circumscriptum undergo senescence and shedding much like epithallial cells in other members of the Corallinales; hence, multicellular epithallial filaments did not evolve in this alga simply because epithallial cells were unable to slough. Although epithallial cells in many coralline algae are lightly calcified, those in C. circumscriptum are heavily mineralized, more so than the underlying initial cells and cells comprising the cortex. As in other coralline algae, starch is absent from the epithallial cells of C. circumscriptum. The feature of having abundant chloroplasts in the epithallial cells of C. circumscriptum is shared by other species with multi‐cellular epithallial filaments and transiently by species with single epithallial cells. Except for having a thick epithallus, a feature found in other genera and in other species of Clathromorphum, the anatomy of C. circumscriptum is unexceptional.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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RECONSIDERING PREY SPECIALIZATIONS IN AN ALGAL‐LIMPET GRAZING MUTUALISM: EPITHALLIAL CELL DEVELOPMENT INCLATHROMORPHUM CIRCUMSCRIPTUM(RHODOPHYTA, CORALLINALES)¹

Pueschel

Miller

1996

Journal of Phycology

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“…In the studied genera, sloughing has been described for terminal epithallial cells in Spongites yendoi (Foslie) Chamberlain and Hydrolithon onkodes (Heydrich) Penrose et Woelkerling (Keats et al, 1993;1994b and superficial and deep layer cells in Lithophyllum incrassatum (Foslie) Foslie, L. neoatalayense Masaki and L. impressum Foslie (Chamberlain, 1996;Pueschel et al, 1996;Puechel & Keats, 1997). Epithallial shedding has been demonstrated to be non synchronous in H. onkodes and simultaneous across a large area of thallus in Sporolithon ptychoides Heydrich and Neogoniolithon fosliei (Heydrich) Setchell & Mason .…”

Section: Discussionmentioning

confidence: 98%

Are anti-fouling effects in coralline algae species specific?

Bôas

Figueiredo

2004

Braz. j. oceanogr.

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A B S T R A C TThe crustose coralline algae are susceptible to be covered by other algae, which in turn can be affected by anti-fouling effects. In this study the hypothesis tested was that these algae can inhibit the growth of epiphytes in a species specific way. In the laboratory, propagules of Sargassum furcatum and Ulva fasciata were liberated and cultivated on pieces of coralline algae and slide covers (controls) and their survival and growth were compared. Spongites and Hydrolithon significantly inhibited the growth of U. fasciata but not Sargassum. In the field, pieces of three species of live and dead coralline algae and their copies in epoxy putty discs were fixed on the rock. After one month epiphytic algae were identified and their dry mass quantified. Lithophyllum did not affect the epiphyte growth. In contrast Spongites and an unidentified coralline significantly inhibited the growth of Enteromorpha spp., Ulva fasciata and Hincksia mitchelliae. Colpomenia sinuosa was absent on all living crusts, but present on controls. Results show that the epiphyte-host relation depends on the species that are interacting. The sloughing of superficial cells of coralline crusts points to the possible action of physical anti-fouling effect, though a chemical one is not rejected. R E S U M OAs algas calcárias crostosas são susceptíveis ao recobrimento por outras algas, entretanto, estas podem ser afetadas por efeitos anti-incrustantes. Neste estudo foi testada a hipótese de que estas algas possam inibir o crescimento somente de algumas espécies de epífitas. No laboratório, propágulos de Sargassum furcatum e Ulva fasciata foram liberados e cultivados sobre pedaços de algas calcárias e lamínulas de microscopia (controle) e as suas sobrevivência e crescimento comparadas. Spongites e Hydrolithon inibiram significativamente o crescimento de U. fasciata, mas não de Sargassum. No campo, pedaços de três espécies de algas calcárias vivas, mortas e cópias destas em discos de massa epóxi foram fíxos na rocha. Após um mês as algas epífitas foram identificadas e sua massa seca quantificada. Lithophyllum não inibiu o crescimento das epífitas, em contraste Spongites e outra coralinácea indeterminada inibiram o crescimento de Enteromorpha spp., Ulva fasciata e Hincksia mitchelliae. Colpomenia sinuosa esteve sempre ausente sobre as crostas vivas, porém presente nos controles. Resultados demonstram que a relação epífita-hospedeiro depende das espécies que estejam interagindo. O desprendimento de células superficiais das crostas coralináceas aponta para um possível efeito físico anti-incrustante, não se excluindo o químico.

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Rhodophyta

Yoon

Nelson

Lindstrom

et al. 2017

Handbook of the Protists

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Development of epithallial cells in Corallina officinalis and Lithophyllum impressum (Corallinales, Rhodophyta)

Cited by 14 publications

References 12 publications

RECONSIDERING PREY SPECIALIZATIONS IN AN ALGAL‐LIMPET GRAZING MUTUALISM: EPITHALLIAL CELL DEVELOPMENT INCLATHROMORPHUM CIRCUMSCRIPTUM(RHODOPHYTA, CORALLINALES)¹

RECONSIDERING PREY SPECIALIZATIONS IN AN ALGAL‐LIMPET GRAZING MUTUALISM: EPITHALLIAL CELL DEVELOPMENT INCLATHROMORPHUM CIRCUMSCRIPTUM(RHODOPHYTA, CORALLINALES)¹

Are anti-fouling effects in coralline algae species specific?

Rhodophyta

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Development of epithallial cells in Corallina officinalis and Lithophyllum impressum (Corallinales, Rhodophyta)

Cited by 14 publications

References 12 publications

RECONSIDERING PREY SPECIALIZATIONS IN AN ALGAL‐LIMPET GRAZING MUTUALISM: EPITHALLIAL CELL DEVELOPMENT INCLATHROMORPHUM CIRCUMSCRIPTUM(RHODOPHYTA, CORALLINALES)1

RECONSIDERING PREY SPECIALIZATIONS IN AN ALGAL‐LIMPET GRAZING MUTUALISM: EPITHALLIAL CELL DEVELOPMENT INCLATHROMORPHUM CIRCUMSCRIPTUM(RHODOPHYTA, CORALLINALES)1

Are anti-fouling effects in coralline algae species specific?

Rhodophyta

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Product

Resources

About

RECONSIDERING PREY SPECIALIZATIONS IN AN ALGAL‐LIMPET GRAZING MUTUALISM: EPITHALLIAL CELL DEVELOPMENT INCLATHROMORPHUM CIRCUMSCRIPTUM(RHODOPHYTA, CORALLINALES)¹

RECONSIDERING PREY SPECIALIZATIONS IN AN ALGAL‐LIMPET GRAZING MUTUALISM: EPITHALLIAL CELL DEVELOPMENT INCLATHROMORPHUM CIRCUMSCRIPTUM(RHODOPHYTA, CORALLINALES)¹