PANGAEA_996553 Heat stress response of juvenile Saccharina latissima sporophytes to sporophyte priming Steiner, Niko; Nilsen, Anne M; Gauci, Clément; Jueterbock, Alexander; Bartsch, Inka Heat stress response of juvenile Saccharina latissima sporophytes to sporophyte priming 2026-10-22 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.996553 Investigator Niko Steiner steiner1@uni-bremen.de Earth Science Event label Type of study Date Day of experiment Treatment Treatment: temperature Replicate Survival Survival Sporophyte blade area, total Sporophyte blade area, healthy Sporophyte blade area, healthy geoscientificInformation heat stress heatwave Kelp Laboratory experiment S_latissima_priming_exp5 thermal priming thermal tolerance Visual observation Image analysis NIH ImageJ Pulse-Amplitude-Modulated (PAM) fluorometer, WALZ GmbH, Germany, M-Series 2024-06-24 2024-07-08 Complete 53.53327 53.53327 8.58052 8.58052 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 2540 data points text/tab-separated-values Steiner, Niko; Nilsen, Anne M; Gauci, Clément; Jueterbock, Alexander; Bartsch, Inka (2026): Differential response of gametophyte and sporophyte priming to heat stress of Saccharina latissima sporophytes across different age classes. Marine Ecology Progress Series, 794, 1-24, https://doi.org/10.3354/meps15253

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.996553"!

http://en.wikipedia.org/wiki/ISO_8601 Date https://doi.org/10.3354/meps15253 Differential response of gametophyte and sporophyte priming to heat stress of Saccharina latissima sporophytes across different age classes PANGAEA_996547 DIF 9.4 2026-10-22 2026-10-22