Sporopollenin chemistry and its durability in the geological record: an integration of extant and fossil chemical data across the seed plants

doi:10.1111/pala.12523

KIB OpenIR

	Sporopollenin chemistry and its durability in the geological record: an integration of extant and fossil chemical data across the seed plants
	Jardine,Phillip E.; Hoorn,Carina ; Beer,Maxine A. M.; Barbolini,Natasha ; Woutersen,Amber ; Bogota-Angel,Giovanni ; Gosling,William D.; Fraser,Wesley T.; Lomax,Barry H.; Huang,Huasheng ; Sciumbata,Matteo ; He,Huajie ; Dupont-Nivet,Guillaume
	2021
发表期刊	PALAEONTOLOGY
ISSN	0031-0239
卷号	64 期号:2 页码:285-305
摘要	Sporopollenin is a highly resistant biopolymer that forms the outer wall of pollen and spores (sporomorphs). Recent research into sporopollenin chemistry has opened up a range of new avenues for palynological research, including chemotaxonomic classification of morphologically cryptic taxa. However, there have been limited attempts to directly integrate extant and fossil sporopollenin chemical data. Of particular importance is the impact of sample processing to isolate sporopollenin from fresh sporomorphs, and the extent of chemical changes that occur once sporomorphs enter the geological record. Here, we explore these issues using Fourier transform infrared (FTIR) microspectroscopy data from extant and fossil grass, Nitraria (a steppe plant), and conifer pollen. We show a 98% classification success rate at subfamily level with extant grass pollen, demonstrating a strong taxonomic signature in isolated sporopollenin. However, we also reveal substantial chemical differences between extant and fossil sporopollenin, which can be tied to both early diagenetic changes acting on the sporomorphs and chemical derivates of sample processing. Our results demonstrate that directly integrating extant and late Quaternary chemical data should be tractable as long as comparable sample processing routines are maintained. Consistent differences between extant and deeper time sporomorphs, however, suggests that classifying fossil specimens using extant training sets will be challenging. Further work is therefore required to understand and simulate the effects of diagenetic processes on sporopollenin chemistry.
关键词	sporopollenin pollen chemotaxonomy seed plants diagenesis Fourier transform infrared (FTIR) microspectroscopy
DOI	10.1111/pala.12523
WOS记录号	WOS:000613179000001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73592
专题	中国科学院昆明植物研究所
作者单位	1.[Jardine, Phillip E.] Univ Munster, Inst Geol & Palaeontol, D-48149 Munster, Germany 2.Univ Amsterdam, Inst Biodivers & Ecosyst Dynam IBED, Dept Ecosyst & Landscape Dynam, NL-1090 GE Amsterdam, Netherlands 3.Stockholm Univ, Dept Ecol Environm & Plant Sci, SE-106 91 Stockholm, Sweden 4.Stockholm Univ, Bolin Ctr Climate Res, SE-106 91 Stockholm, Sweden 5.Univ Distrital Francisco Jose de Caldas, Fac Medio Ambiente & Recursos Natr, Bogota, Colombia 6.Fraser, Wesley T.] Oxford Brookes Univ, Dept Social Sci, Geog, Oxford OX3 0BP, England 7.Lomax, Barry H.] Univ Nottingham, Agr & Environm Sci, Sutton Bonington Campus, Loughborough LE12 5RD, Leics, England 8.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming, Yunnan, Peoples R China 9.Univ Potsdam, Inst Geosci, D-14476 Potsdam, Germany 10.Univ Rennes, CNRS, Geosci Rennes, UMR 6118, F-35000 Rennes, France
推荐引用方式 GB/T 7714	Jardine,Phillip E.,Hoorn,Carina,Beer,Maxine A. M.,et al. Sporopollenin chemistry and its durability in the geological record: an integration of extant and fossil chemical data across the seed plants[J]. PALAEONTOLOGY,2021,64(2):285-305.
APA	Jardine,Phillip E..,Hoorn,Carina.,Beer,Maxine A. M..,Barbolini,Natasha.,Woutersen,Amber.,...&Dupont-Nivet,Guillaume.(2021).Sporopollenin chemistry and its durability in the geological record: an integration of extant and fossil chemical data across the seed plants.PALAEONTOLOGY,64(2),285-305.
MLA	Jardine,Phillip E.,et al."Sporopollenin chemistry and its durability in the geological record: an integration of extant and fossil chemical data across the seed plants".PALAEONTOLOGY 64.2(2021):285-305.