The Dynamic Nature of a Static Headspace Above Frozen Leaf Biomass From a Toxic Brazilian Plant

IF 1.7 4区农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY

Journal of Agricultural Science Pub Date : 2023-08-15 DOI:10.5539/jas.v15n9p105

Mariah Ribeiro Rocha, Paulo de Moraes Ferreira, M. W. M. Oliveira, M. F. G. Sá, T. Rocha

引用次数: 0

Abstract

A static headspace method of sampling coupled to a conventional instrumental analytical probe, gas chromatography mass spectrometry (GCMS), has been applied to examine the volatile fraction above leaf tissue from Palicourea marcgravii, a toxic Brazilian plant that causes sudden death in livestock, and two other surrogate species (Lippia alba and Plectranthus spp.). The unusual total ion chromatogram obtained for the plant of interest is discussed and explained by considering the “dynamic” nature of the static headspace when intact cellular biomass is present and frozen leaves are analyzed concerning the presence and production of methyl salicylate (MeSA), which is this plants main toxin.

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巴西一种有毒植物冰冻叶片生物质的静态顶空的动态性质

采用静态顶空取样法与传统的仪器分析探针气相色谱质谱(GCMS)相结合，对Palicourea marcgravii(一种导致牲畜猝死的巴西有毒植物)和另外两种替代物种(Lippia alba和Plectranthus spp.)叶片组织上方的挥发性组分进行了检测。考虑到完整的细胞生物量存在时静态顶空的“动态”性质，讨论和解释了为感兴趣的植物获得的不寻常的总离子色谱，并分析了有关水杨酸甲酯(MeSA)的存在和生产的冷冻叶片，这是该植物的主要毒素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Agricultural Science 农林科学-农业综合

CiteScore

2.80

自引率

5.00%

发文量

审稿时长

1.4 months

期刊介绍： The Journal of Agricultural Science publishes papers concerned with the advance of agriculture and the use of land resources throughout the world. It publishes original scientific work related to strategic and applied studies in all aspects of agricultural science and exploited species, as well as reviews of scientific topics of current agricultural relevance. Specific topics of interest include (but are not confined to): all aspects of crop and animal physiology, modelling of crop and animal systems, the scientific underpinning of agronomy and husbandry, animal welfare and behaviour, soil science, plant and animal product quality, plant and animal nutrition, engineering solutions, decision support systems, land use, environmental impacts of agriculture and forestry, impacts of climate change, rural biodiversity, experimental design and statistical analysis, and the application of new analytical and study methods (including genetic diversity and molecular biology approaches). The journal also publishes book reviews and letters. Occasional themed issues are published which have recently included centenary reviews, wheat papers and modelling animal systems.