Modificaciones anatómicas y químicas en el leño de ejemplares del arbolado de la ciudad de La Plata (Buenos Aires) causadas por Laetiporus sulphureus (Basidiomycota, Polyporales)

IF 0.6 4区生物学 Q4 PLANT SCIENCES

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-12-15 DOI:10.31055/1851.2372.V52.N4.18843

Mónica Murace, M. L. Luna, María G. G. Ciuffani, A. Perelló

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引用次数: 3

Abstract

Anatomical and chemical modifications in the wood of specimens of trees of La Plata city (Buenos Aires) caused by Laetiporus sulphureus (Basidiomycota, Polyporales). L. sulphureus is an important pathogen causing brown rot in urban trees worldwide. In La Plata city, this fungus was found in specimens of white poplar, green ash, eucalyptus and chinaberry. The objective of this study was to analyze the structural and chemical alterations caused by L. sulphureus in white poplar, green ash, eucalyptus and chinaberry in order to contribute to the diagnosis of the risk that implies their deterioration for inhabitants, their goods and tree diversity in the city. Anatomical studies were performed using light and scanning electron microscopes. Chemical analyses were carried out on samples of green ash and chinaberry, according to TAPPI standards. In all instances the damage was located in the heartwood, showing typical characteristics of advanced stages of brown rot decay. For each species specific alterations at the anatomical and chemical levels were registered, compatible with their structural differences. This is the first regional contribution on the type and degree of deterioration recorded in species naturally affected by L. sulphureus, useful for understanding the risks involved in the urban context.

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拉普拉塔市(布宜诺斯艾利斯)木材标本的解剖和化学变化引起的Laetiporus sulphureus(担子菌门，Polyporales)

Laetiporus sulphureus(担子菌科，Polyporales)对拉普拉塔市树木标本木材的解剖和化学改变。硫脲杆菌是引起城市树木褐腐病的重要病原菌。在拉普拉塔市，这种真菌在白杨树、绿灰树、桉树和樱桃的标本中被发现。本研究的目的是分析L. sulphurus对白杨树、绿灰树、桉树和苦楝树造成的结构和化学变化，以帮助诊断城市居民、他们的货物和树木多样性的退化风险。使用光学和扫描电子显微镜进行解剖研究。根据TAPPI的标准，对青灰和樱桃样品进行了化学分析。在所有情况下，损害都位于心材，显示出棕色腐病晚期的典型特征。对于每个物种，在解剖和化学水平上都记录了特定的变化，与它们的结构差异相适应。这是第一次对自然受L. sulphureus影响的物种所记录的退化类型和程度的区域贡献，有助于了解城市环境中涉及的风险。

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来源期刊

Boletin De La Sociedad Argentina De Botanica PLANT SCIENCES-

CiteScore

1.00

自引率

33.30%

发文量

审稿时长

>12 weeks

期刊介绍： Bol. Soc. Argent. Bot. publishes original scientific works from the whole spectrum of Plant Biology (structure, anatomy, development, physiology, cytology, genetics, evolution, ecology, paleobotany, palynology, ethnobotany, etc.) in the diverse vegetable organisms and related groups (mycology, ficology, lichenology, briology, etc.), both in basic and applied aspects. Taxonomic works (of systematics, phylogeny, monographs, revisions, lectotypifications, nomenclatural acts, descriptions of taxa), phytogeographic and phytosociological works (survey and classification of vegetation at different spatial scales and without restriction of methodological approaches) are considered for publication. Contributions that address complete phytogeographic units or sub-units and those that fill gaps in knowledge of vegetation in little-known territories are especially welcome. Extensions of geographical areas are published only when it comes to new citations for a country. Checklists and lists of annotated plants are not published. Articles submitted for publication must be original and must not have been submitted to another publisher or previously published (print or electronic format). Submissions of papers already published in another language will not be accepted (autoplagio for translation).