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Detailed characterization of Pinus ponderosa sporopollenin by infrared spectroscopy
Phytochemistry ( IF 3.2 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.phytochem.2019.112195 Alec Lutzke 1 , Kevin J Morey 1 , June I Medford 2 , Matt J Kipper 1
Phytochemistry ( IF 3.2 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.phytochem.2019.112195 Alec Lutzke 1 , Kevin J Morey 1 , June I Medford 2 , Matt J Kipper 1
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In plant spores and pollen, sporopollenin occurs as a structural polymer with remarkable resistance to chemical degradation. This recalcitrant polymer is well-suited to analysis by non-destructive infrared spectroscopy. However, existing infrared characterization of sporopollenin has been limited in scope and occasionally contradictory. This study provides a comprehensive structural analysis of sporopollenin in the Pinus ponderosa pollen exine using infrared spectroscopy, including detailed band assignments, descriptions of chemical reactivity, and comparison to multiple reference substances. We observe that the infrared spectral characteristics of sporopollenin prepared by enzymatic digestion of the polysaccharide-based intine are largely consistent with a copolymer of aliphatic lipids and trans-4-hydroxycinnamic acid, without distinct contributions from α-pyrone or carotenoid substructures.
中文翻译：
红外光谱对黄松孢粉质的详细表征
在植物孢子和花粉中，孢粉素作为一种结构聚合物存在，对化学降解具有显着的抗性。这种顽固的聚合物非常适合非破坏性红外光谱分析。然而，孢粉素现有的红外表征范围有限，有时相互矛盾。本研究使用红外光谱对黄松花粉外壁中的孢粉素进行了全面的结构分析，包括详细的谱带分配、化学反应性描述以及与多种参考物质的比较。我们观察到，通过酶消化基于多糖的内脏制备的孢粉质的红外光谱特征与脂肪族脂质和反式-4-羟基肉桂酸的共聚物基本一致，
更新日期：2020-02-01
中文翻译：
红外光谱对黄松孢粉质的详细表征
在植物孢子和花粉中，孢粉素作为一种结构聚合物存在，对化学降解具有显着的抗性。这种顽固的聚合物非常适合非破坏性红外光谱分析。然而，孢粉素现有的红外表征范围有限，有时相互矛盾。本研究使用红外光谱对黄松花粉外壁中的孢粉素进行了全面的结构分析，包括详细的谱带分配、化学反应性描述以及与多种参考物质的比较。我们观察到，通过酶消化基于多糖的内脏制备的孢粉质的红外光谱特征与脂肪族脂质和反式-4-羟基肉桂酸的共聚物基本一致，
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