Description: We assessed the heat tolerance of juvenile Saccharina latissima sporophytes under heat stress and in response to gametophyte priming. We primed S. latissima gametophytes (Lofoten 2023; 15°C clonal culture; n = 7) for 3 weeks at 0°C, 10°C, and 20°C and induced gametogenesis at 10°C for 2 weeks. Sporophytes were cultivated after gametogenesis for an additional 4 weeks before we subjected them to a 14-day simulated heat wave (13°C for 3 days, 16°C for 2 days, 18°C for 2 days, 20°C, 21°C and 22°C for 1 day each, 23°C and 24°C for 4 days each, and recovery at 20°C for 7 days), during which we assessed the photosynthetic performance by measuring quantum yield (Fv/Fm). Sporophytes that survived the heat wave were cultivated at 15°C for 64 days to recover, after which we measured their size (length and blade area). The laboratory experiment was carried out at the Alfred Wegener Institute in Bremerhaven, Germany.
Global identifier:
Doi(
"10.1594/PANGAEA.996549",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Blade area",
"Blade length",
"Date",
"Day of experiment",
"Event label",
"Maximum quantum yield of photosystem II",
"Replicate",
"Sample ID",
"Treatment: temperature",
"Type of study",
],
methods: [
"Image analysis NIH ImageJ",
"Pulse-Amplitude-Modulated (PAM) fluorometer, WALZ GmbH, Germany, M-Series",
],
},
)
Tags: Deutschland ? Temperatur ? Hitzewelle ? Hitzebelastung ? Studie ? Laborversuch ? Kelp ? thermal priming ? thermal tolerance ?
Bounding boxes: 8.58052° .. 8.58052° x 53.53327° .. 53.53327°
License: Creative Commons Namensnennung 4.0 (Data access requires registration)
Language: Englisch/English
Modified: 2026-10-15
Last harvest: 22.10.2026 06:44
Time ranges: 2024-03-08 - 2024-06-06
Accessed 3 times.