Seasonal Light and Temperature Interaction Effects on Development of Laminaria Saccharina (Phaeophyta) Gametophytes and Juvenile Sporophytes

Lee, Jin Ae; Brinkhuis, B. H.

doi:10.1111/j.1529-8817.1988.tb00076.x

Cited by 72 publications

(30 citation statements)

References 39 publications

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“…Furthermore, a high reproductive plasticity in thermal adaptation of germination was found for S. latissima, as monthly variations were observed as a function of seawater temperature and PAR. Similar responses with respect to primary cell enlargement and female gametophytic growth were found in S. latissima from Long Island Sound (USA; Lee & Brinkhuis 1988). Similarly, sporophytes of S. latissima are able to recover rapidly from exposure to high temperature (Gerard 1997) by an increase in cellular levels of Photosystem II-associated fucoxanthinchlorophyll binding protein, as well as in the photosynthetic pigments fucoxanthin, β-carotin, chlorophyll a and c and the activity of the key Calvin-cycle enzyme RUBISCO (Davison 1987, Machalek et al 1996.…”

Section: Reproductive Success Of Laminariales Under Changing Temperatmentioning

confidence: 53%

Interactive effects of UV radiation and temperature on microstages of Laminariales (Phaeophyceae) from the Arctic and North Sea

Müller

Wiencke²,

Bischof³

2008

Clim. Res.

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Spores and gametophytes are considered to be those life-history stages of kelps most susceptible to environmental perturbations and, in particular, to temperature and UV radiation. Microstages of Arctic (Saccharina latissima, Laminaria digitata, Alaria esculenta from Spitsbergen) and temperate kelp species (S. latissima, L. digitata, L. hyperborea from the North Sea) were exposed in 2-factorial experiments to different temperatures (2 to 18°C) and radiation conditions (photosynthetic active radiation, UV-A radiation, UV-B radiation). Our results reveal ecotypic differentiations in the stress responses of zoospores of L. digitata and S. latissima from the Arctic and North Sea. UV-A radiation either enhanced the formation of gametes at elevated temperatures in L. digitata or impaired egg release and subsequent sporophyte formation in L. hyperborea. Microstages exposed to additional UV-B radiation were strongly inhibited to a population-, species-and life phase-specific degree at suboptimal and optimal temperatures. Only gametogenesis of Laminaria spp. was shown to be tolerant to UV-B exposure. Conclusively, in respect to a future scenario of elevated UV radiation regimes and higher summer temperatures in Arctic and North Sea waters, summer-recruiting Arctic species and L. digitata from the North Sea might become endangered by a frequent disturbance of their microstages.

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Section: Reproductive Success Of Laminariales Under Changing Temperatmentioning

confidence: 53%

Interactive effects of UV radiation and temperature on microstages of Laminariales (Phaeophyceae) from the Arctic and North Sea

Müller

Wiencke²,

Bischof³

2008

Clim. Res.

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“…Indeed, future studies on the effects of nutrient levels on gametogenesis in the laboratory should continue attempts to relate experimental levels to the conditions and variation that occur in the field (e.g. Hsiao & Druehl, 1973b;Novaczek, 1984;Deysher & Dean, 1986b;Lee & Brinkhuis, 1988). A number of freshwater green algae become reproductive when the CO 2 concentration is increased in the air over the culture medium (e.g.…”

Section: The Effect Of Environmental Factors Onmentioning

confidence: 99%

“…photoperiod, temperature, and nutrients) are difficult but are clearly required to delineate the conditions that must be simultaneously met in order for sexual reproduction to occur (e.g. LiJning, 1980b;Rietema & Breeman, 1982;Deysher & Dean, 1986a;Lee & Brinkhuis, 1988;and references in Hoshaw & McCourt, 1988). When combined with information on natural variation of these factors, such studies permit more realistic predictions of when reproduction can occur in nature.…”

Section: The Effect Of Environmental Factors Onmentioning

confidence: 99%

Gametogenesis, gametes and zygotes: An ecological perspective on sexual reproduction in the algae

Brawley

Johnson

1992

British Phycological Journal

112

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“…In the present paper we focus on the sporophyte stage. Seasonality in S. latissima has been studied in other areas [10,11], including the west coast of Norway [12]. However, the seasonal patterns in kelps in general are known to vary [9], even on local scales [13].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Patterns of Sporophyte Growth, Fertility, Fouling, and Mortality ofSaccharina latissimain Skagerrak, Norway: Implications for Forest Recovery

Andersen

Steen

Christie

et al. 2011

Journal of Marine Biology

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On the Skagerrak coast the kelp Saccharina latissima has suffered severe stand reductions over the last decade, resulting in loss of important habitats. In the present study, healthy kelp plants were transplanted into four deforested areas and their patterns of growth, reproduction, and survival were monitored through subsequent seasons. Our main objective was to establish whether the kelp plants were able to grow and mature in deforested areas. We observed normal patterns of growth and maturation at all study sites. However, heavy fouling by epiphytes occurred each summer, followed by high kelp mortality. The study shows that the seasonal variations and the life stage timing of S. latissima make formation of self-sustainable populations impossible in the present environment. Most noteworthy, we suggest that fouling by epiphytes is involved in the lack of kelp forest recovery in Skagerrak, Norway.

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Seasonal Light and Temperature Interaction Effects on Development of Laminaria Saccharina (Phaeophyta) Gametophytes and Juvenile Sporophytes

Cited by 72 publications

References 39 publications

Interactive effects of UV radiation and temperature on microstages of Laminariales (Phaeophyceae) from the Arctic and North Sea

Interactive effects of UV radiation and temperature on microstages of Laminariales (Phaeophyceae) from the Arctic and North Sea

Gametogenesis, gametes and zygotes: An ecological perspective on sexual reproduction in the algae

Seasonal Patterns of Sporophyte Growth, Fertility, Fouling, and Mortality ofSaccharina latissimain Skagerrak, Norway: Implications for Forest Recovery

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