Description: We assessed the heat tolerance of juvenile Saccharina latissima sporophytes under heat stress and in response to sporopyhte priming. Gametogenesis of gametophytes (Spitsbergen 2011, 2015; 5°C clonal culture, n = 5) was induced at 5°C and sporophytes reared for 6 months. Sporophytes were distributed to three treatment groups. A 17-day heat wave (from 5°C to 20°C and back) followed by a 1-day priming trigger at 21.5°C (HWT); 17 days at 10°C and a 1-day priming trigger (T); a control remaining at 10°C throughout (C). All groups were subjected to a 7-day heat stress treatment at 20°C, 21.5°C, 23°C, and 25°C, where we measured Fv/Fm, percentage of healthy area and survival. All laboratory experiments were carried out at the Alfred Wegener Institute in Bremerhaven, from January to July 2024.
Global identifier:
Doi(
"10.1594/PANGAEA.996553",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Date",
"Day of experiment",
"Event label",
"Replicate",
"Sporophyte blade area, healthy",
"Sporophyte blade area, total",
"Survival",
"Treatment",
"Treatment: temperature",
"Type of study",
],
methods: [
"Image analysis NIH ImageJ",
"Pulse-Amplitude-Modulated (PAM) fluorometer, WALZ GmbH, Germany, M-Series",
"Visual observation",
],
},
)
Tags: 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: 20.10.2026 03:49
Time ranges: 2024-06-24 - 2024-07-08
Accessed 1 times.