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Long-term survival of bryophytes underground: an investigation of the diaspore bank of Physcomitrium eurystomum Sendtn.

Callaghan, Des; During, Heinjo; Medina, Rafael; Yang, Handong; (2022) Long-term survival of bryophytes underground: an investigation of the diaspore bank of Physcomitrium eurystomum Sendtn. Journal of Bryology , 44 (2) pp. 208-216. 10.1080/03736687.2022.2151857. Green open access

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Abstract

INTRODUCTION: Bryophyte diaspore banks are a critical aspect of the life strategy of some species yet remain neglected and poorly understood. This study investigated the longevity in natural habitat of the diaspore bank of Physcomitrium eurystomum Sendtn., a moss species that is threatened with extinction in Europe. METHODS: Undisturbed soil cores of 40 cm depth were collected from Langmere, Norfolk, UK, and were split into investigated sediment layers of 1 cm depth. Dating of sediment layers was done by an analysis of radionuclides, and diaspore germination trials of each layer were carried out in a growth chamber. DNA barcoding was used to help identify plants that germinated. KEY RESULTS AND CONCLUSIONS: Viable diaspores of Physcomitrium eurystomum frequently occurred in sediment layers that were at least 100 years old and continued to occur in much lower layers that were probably several hundred years old. The long-term survival of bryophytes underground can have important implications for conservation decisions.

Type: Article
Title: Long-term survival of bryophytes underground: an investigation of the diaspore bank of Physcomitrium eurystomum Sendtn.
Open access status: An open access version is available from UCL Discovery
DOI: 10.1080/03736687.2022.2151857
Publisher version: https://doi.org/10.1080/03736687.2022.2151857
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Funariaceae, lead-210, DNA barcoding, sediment core, germination trial
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Geography
URI: https://discovery.ucl.ac.uk/id/eprint/10160638
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