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与橡胶树无性系对炭疽病抗性和易感性相关的结构与生化方面

Structural and Biochemical Aspects Related to Resistance and Susceptibility of Rubber Tree Clones to Anthracnose.

作者信息

Magalhaes Izabela Ponso, Marques João Paulo Rodrigues, Gomes Marcela Eloi, Scaloppi Junior Erivaldo José, Fischer Ivan Herman, Furtado Edson Luiz, Pinheiro Henrique Rodney Lucio, Veréchia Rodrigues Flavia Thomaz, Firmino Ana Carolina

机构信息

College of Agricultural and Technological Sciences, São Paulo State University (Unesp), Dracena 17900-000, São Paulo State, Brazil.

Center for Nuclear Energy in Agriculture, University of São Paulo (USP), Piracicaba 13400-970, São Paulo State, Brazil.

出版信息

Plants (Basel). 2021 May 14;10(5):985. doi: 10.3390/plants10050985.

DOI:10.3390/plants10050985
PMID:34069304
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8156239/
Abstract

The aim of the present study was to evaluate structural and biochemical aspects related to the interaction of resistant (RRIM 937, IAC 502 and 507) and susceptible (RRIM 600) rubber tree clones with . For such analysis, ultrathin sections of the leaf limb were embedded in historesin and differently stained to verify structural alterations and presence of starch grains, arginine, lipids, tannins and lignins. The total proteins and activity of the enzymes peroxidase and (PAL) were quantified. Stomatal density was also analyzed under a scanning electron microscope. Data indicated alterations in the cell content of resistant clones inoculated with the pathogen, as well as greater lignin and lipid accumulation in these samples. For tannins, there was no difference between inoculated and non-inoculated clones. Arginine was found at greater quantities in IAC 502 and 507. Starch grains were not detected in any of the analyzed samples. Protein level and stomatal density were lower in resistant clones. Peroxidase activity was more expressive in resistant clones. PAL activity, there was no significant difference between clones. The lignin and lipids, total protein, peroxidase activity and stomatal density may be related to the resistance of rubber tree clones to anthracnose.

摘要

本研究的目的是评估抗性（RRIM 937、IAC 502和507）和易感（RRIM 600）橡胶树克隆与……相互作用的结构和生化方面。为了进行此类分析，将叶边缘的超薄切片包埋在组织树脂中，并进行不同的染色，以验证结构变化以及淀粉粒、精氨酸、脂质、单宁和木质素的存在。对总蛋白以及过氧化物酶和苯丙氨酸解氨酶（PAL）的活性进行了定量分析。还在扫描电子显微镜下分析了气孔密度。数据表明，接种病原体的抗性克隆的细胞内容物发生了变化，并且这些样品中木质素和脂质积累更多。对于单宁，接种和未接种的克隆之间没有差异。在IAC 502和507中发现精氨酸的含量更高。在任何分析样品中均未检测到淀粉粒。抗性克隆中的蛋白质水平和气孔密度较低。过氧化物酶活性在抗性克隆中表现得更明显。对于PAL活性，克隆之间没有显著差异。木质素和脂质、总蛋白、过氧化物酶活性和气孔密度可能与橡胶树克隆对炭疽病的抗性有关。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/10e725eb42aa/plants-10-00985-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/acda2c77da29/plants-10-00985-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/257cde197262/plants-10-00985-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/0d2f6a5e178e/plants-10-00985-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/09d64e8c3ed9/plants-10-00985-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/a5017ba3bdd4/plants-10-00985-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/257962e914a6/plants-10-00985-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/29d32729c8fb/plants-10-00985-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/10e725eb42aa/plants-10-00985-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/acda2c77da29/plants-10-00985-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/257cde197262/plants-10-00985-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/0d2f6a5e178e/plants-10-00985-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/09d64e8c3ed9/plants-10-00985-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/a5017ba3bdd4/plants-10-00985-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/257962e914a6/plants-10-00985-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/29d32729c8fb/plants-10-00985-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eacb/8156239/10e725eb42aa/plants-10-00985-g008.jpg

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Starch as a source, starch as a sink: the bifunctional role of starch in carbon allocation.淀粉作为源，淀粉作为库：淀粉在碳分配中的双重功能。
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