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

IF 1.2 3区 生物学 Q3 PLANT SCIENCES
D. Callaghan, H. During, R. Medina, Handong Yang
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引用次数: 1

Abstract

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.
地下苔藓植物的长期生存:对广孔藻一水硬铝石库的调查。
摘要简介一水硬铝石苔藓植物库是一些物种生活策略的一个重要方面,但仍然被忽视和缺乏了解。本研究调查了广孔藻(Physcomitrium eurystomum Sendtn。,欧洲濒临灭绝的苔藓物种。方法40个原状土芯 从英国诺福克郡的兰米尔采集了cm深的沉积物,并将其分为1 cm深。沉积物层的年代测定是通过分析放射性核素来完成的,每层的一水硬铝石发芽试验都是在生长室中进行的。DNA条形码被用来帮助识别发芽的植物。关键结果和结论广孔藻的活一水硬铝石经常出现在至少有100年历史的沉积层中,并继续出现在可能有几百年历史的较低层中。地下苔藓植物的长期生存对保护决策具有重要意义。
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来源期刊
Journal of Bryology
Journal of Bryology 生物-植物科学
CiteScore
4.50
自引率
31.60%
发文量
20
审稿时长
3 months
期刊介绍: Journal of Bryology exists to promote the scientific study of bryophytes (mosses, peat-mosses, liverworts and hornworts) and to foster understanding of the wider aspects of bryology. Journal of Bryology is an international botanical periodical which publishes original research papers in cell biology, anatomy, development, genetics, physiology, chemistry, ecology, paleobotany, evolution, taxonomy, molecular systematics, applied biology, conservation, biomonitoring and biogeography of bryophytes, and also significant new check-lists and descriptive floras of poorly known regions and studies on the role of bryophytes in human affairs, and the lives of notable bryologists.
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