• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Volcanology and Geothermal Research >Influence of volcanic gases on the epidermis of Pinus halepensis Mill. in Campi Flegrei, Southern Italy: A possible tool for detecting volcanism in present and past floras
【24h】

Influence of volcanic gases on the epidermis of Pinus halepensis Mill. in Campi Flegrei, Southern Italy: A possible tool for detecting volcanism in present and past floras

机译：火山气体对松树樟子松表皮的影响。意大利南部Campi Flegrei的火山：一种检测当前和过去植物群中火山作用的可能工具

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cuticle micromorphology together with epidermal and epistomatal wax, in both current- and first-year-old needles of conifer Pinus halepensis (Aleppo pine) trees growing under volcanic gas fumigation was analysed in Pisciarelli area, Campi Flegrei, Southern Italy. As a control, current- and first-year-old needles growing far from volcanic gas emission were also sampled. Using a multidisciplinary approach with SEM, TEM and X-ray, volcanic gases were shown to cause degradation on epicuticular and epistomatal waxes. Significant statistical variations of ultrastructural components of the cuticle, with 30 measurements, including total thickness of the cuticle, and details and proportions of all different layers, and use of confidence interval, revealed a high degree of sensitivity of Aleppo pine to this extreme environment. In the present study, non-significant thickness variations of the cell wall plus cuticle among current- and first-year-old needles of both fumigated and non fumigated trees have been found. However, at the ultrastructural level, significant variations in cell wall and total cuticle thickness, especially within the three zones of B1 fibrillar layer, revealed different equilibria for each of the four types of material. Using energy dispersive X-ray microanalysis, no sulphur was found in either cuticle or epidermal cells, but the presence of H_2S in the fumarole gas is suspected to cause indirect and/or direct cuticle alterations of wax structure. Ultrastructural characters of plant cuticles related to emission of volcanic gases during the geological past are also discussed. Among these considerations, an identification key enabling distinction between non fumigated and fumigated materials with 9 characters, provides a good tool detecting the influence of volcanism for extant and fossil plants.
机译：在意大利南部Campi Flegrei的Pisciarelli地区，分析了在火山气体熏蒸下生长的针叶树Pinus halepensis（Aleppo pine）树的现今和一岁针叶中的表皮微观形态以及表皮和表皮蜡。作为对照，还采样了远离火山气体排放的当前和第一年的针头。使用SEM，TEM和X射线的多学科方法，显示出火山气体会导致表皮和表皮蜡产生降解。角质层超微结构成分的统计学差异显着，其中包括30个测量值，包括角质层的总厚度，所有不同层的细节和比例以及置信区间，显示了阿勒颇松对这种极端环境的高度敏感性。在本研究中，已经发现熏蒸的和未熏蒸的树木的当前和第一岁针头的细胞壁和表皮的厚度变化不显着。然而，在超微结构水平，细胞壁和总表皮厚度的显着变化，特别是在B1纤维层的三个区域内，显示出四种材料中每种材料的平衡不同。使用能量分散X射线显微分析，在角质层或表皮细胞中均未发现硫，但据信在富马酚气体中存在H_2S会间接和/或直接导致蜡结构的角质层改变。还讨论了地质历史时期与火山气体排放有关的植物表皮的超微结构特征。在这些考虑中，使用一个识别键可以区分9个字符的非熏蒸材料和熏蒸材料，这是检测火山对现存和化石植物影响的良好工具。

著录项

  • 来源
  • 作者

    Antonello Bartiromo; Gaeetan Guignard; Maria Rosaria Barone Lumaga; Filippo Barattolo; Giovanni Chiodini; Rosario Avino; Giulia Guerriero; Georges Barale;

  • 作者单位

    Dipartimento delle Scienze Biologiche, Universita degli Studi di Napoli 'Federico II', Via Mezzocannone, 8, 80734 Napoli, Italy Universite Lyon 1, F-69622, Lyon, CNRS, UMR5276, Laboratoire de Ceologie de Lyon. Herbiers de I'Universite Claude-Bernard Lyon 1, France Dipartimento di Scienze della Terra, Universita degli Studi di Napoli 'Federico II', Largo San Marcellino, 10, 80138 Napoli, Italy Dipartimento delle Scienze Biologiche, Universita degli Studi di Napoli 'Federico II', Via Mezzocannone, 8, 80134 Napoli, Italy;

    Universite Lyon 1, F-69622, Lyon, CNRS, UMR5276, Laboratoire de Ceologie de Lyon. Herbiers de I'Universite Claude-Bernard Lyon 1, France;

    Orto Botanico, Universita degli Studi di Napoli 'Federico II', Via Foria, 223, 80139 Napoli, Italy;

    Dipartimento di Scienze della Terra, Universita degli Studi di Napoli 'Federico II', Largo San Marcellino, 10, 80138 Napoli, Italy;

    Istituto Nazionale di Ceofisica e Vulcanologia (INCV), Via Diocleziano, 328, 80124 Napoli, Italy;

    Istituto Nazionale di Ceofisica e Vulcanologia (INCV), Via Diocleziano, 328, 80124 Napoli, Italy;

    Dipartimento delle Scienze Biologiche, Universita degli Studi di Napoli 'Federico II', Via Mezzocannone, 8, 80734 Napoli, Italy;

    Universite Lyon 1, F-69622, Lyon, CNRS, UMR5276, Laboratoire de Ceologie de Lyon. Herbiers de I'Universite Claude-Bernard Lyon 1, France;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    campi flegrei; volcanic gases; pinus halepensis; epidermis; cuticle ultrastructure; hydrogen sulphide (H_2S);

    机译：坎皮弗莱格里火山气体哈勒松表皮;角质层超微结构硫化氢（H_2S）;

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号