气候变化领域集成服务门户(CCPortal): Multitrophic interactions in a geothermal setting: Arthropod borings; actinomycetes; fungi and fungal-like microorganisms in a decomposing conifer wood from the Jurassic of Patagonia

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DOI	10.1016/j.palaeo.2018.09.004
	Multitrophic interactions in a geothermal setting: Arthropod borings; actinomycetes; fungi and fungal-like microorganisms in a decomposing conifer wood from the Jurassic of Patagonia
	Sagasti A.J.; García Massini J.L.; Escapa I.H.; Guido D.M.
发表日期	2019
ISSN	0031-0182
起始页码	31
结束页码	44
卷号	514
英文摘要	A permineralized araucarioid conifer stem, preserved in state of partial decay, is described from the Middle to Late Jurassic Chon-Aike Formation (Bahía Laura Group) at Laguna Flecha Negra, in the Deseado Massif, Santa Cruz Province, Argentina. The tree-stem, which comprises periderm to the secondary xylem, shows evidence of interactions with xylophagous borers, fungi, actinomycetes and other fungal-like microorganisms. In the secondary phloem, it displays rows of traumatic resin ducts, which host abundant mycelium comprising very thin hyphae differentiated into spore-producing structures comparable to actinomycete bacteria and spherical fungal-like resting structures. In the cortical and phloem regions, there are cell groups with structural changes, which appear variably degraded by fungi. The secondary xylem displays decay of cellulose and lignified components, at various spatial scales, comparable with fungal decay patterns in modern wood. Further septate fungal filaments, sometimes bearing clamp connections are associated with decayed regions. The degraded secondary xylem shows circular to oval borings filled with frass containing degraded tracheids, comparable to those bored by different wood boring beetles. Development of traumatic resin ducts in the phloem could have been triggered by penetration of the living stem by these xylophagous arthropods. The association of the different components present suggests pathogenic and saprotrophic interactions promoting decomposition of the stem, and represents a rarely-documented example of multitrophic biological interactions involving several different biological groups in Jurassic terrestrial paleoecosystems. © 2018 Elsevier B.V.
英文关键词	Defence mechanisms; Deseado Massif; Fungal rot; Mesozoic; Paleobotany
语种	英语
scopus关键词	arthropod; bacterium; coniferous tree; decomposition; decomposition analysis; defense mechanism; fungus; Jurassic; Mesozoic; microorganism; paleobotany; paleoecology; pathogen; phloem; spore; wood; xylem; Argentina; Deseado Massif; Patagonia; Santa Cruz [Argentina]; Actinobacteria (class); Arthropoda; Bacteria (microorganisms); Coleoptera; Coniferophyta; Fungi
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151170
作者单位	Becaria Doctoral Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), División Paleobotánica, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n°, La Plata, Buenos Aires B1900FWA, Argentina; Centro Regional de Investigaciones Científicas y Transferencia Tecnológica (CRILAR), Provincia de La Rioja, UNLaR, SEGEMAR, UNCa, CONICET, Entre Ríos y Mendoza s/n°, Anillaco, La Rioja 5301, Argentina; Museo Paleontológico Egidio Feruglio, Av. Fontana 140, Trelew, Chubut 9100, Argentina; Instituto de Recursos Minerales (INREMI-CIC), Calle 64 n°3, La Plata, Buenos Aires B1904AMC, Argentina
推荐引用方式 GB/T 7714	Sagasti A.J.,García Massini J.L.,Escapa I.H.,et al. Multitrophic interactions in a geothermal setting: Arthropod borings; actinomycetes; fungi and fungal-like microorganisms in a decomposing conifer wood from the Jurassic of Patagonia[J],2019,514.
APA	Sagasti A.J.,García Massini J.L.,Escapa I.H.,&Guido D.M..(2019).Multitrophic interactions in a geothermal setting: Arthropod borings; actinomycetes; fungi and fungal-like microorganisms in a decomposing conifer wood from the Jurassic of Patagonia.Palaeogeography, Palaeoclimatology, Palaeoecology,514.
MLA	Sagasti A.J.,et al."Multitrophic interactions in a geothermal setting: Arthropod borings; actinomycetes; fungi and fungal-like microorganisms in a decomposing conifer wood from the Jurassic of Patagonia".Palaeogeography, Palaeoclimatology, Palaeoecology 514(2019).