木材腐烂真菌对元素的吸收和积累与定殖木材的营养策略、腐烂类型和矿物特征有关

IF 2.9 3区 生物学 Q2 MYCOLOGY
Magdalena Krzesłowska , Patrycja Mleczek , Anna Budka , Marek Siwulski , Sylwia Budzyńska , Przemysław Niedzielski , Július Árvay , Mirosław Mleczek
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引用次数: 0

摘要

木材腐烂真菌对必需元素和有毒元素的吸收和积累是复杂的。我们研究了13种WDF定殖的针叶树和落叶树的矿物剖面。为了说明营养策略和腐病类型对所选元素吸收和积累的作用,选择了4种不同营养策略和腐病类型的真菌:2种白腐菌:腐养性Pseudohydnum gelatinosum, 2种寄生Phellinus pini, 2种褐腐菌:腐养性/寄生性Phaeolus schweinitzii和腐养性Tapinella atrotomentosa。结果表明,两种腐养型WDF的子果皮中大部分选定元素(K、Mg、Na、P)的浓度均显著高于寄生型或腐养/寄生型,且在从树干或根突出的子果皮下方的定植木材中含量最高。此外,白腐真菌在其孢子囊中积累的大多数微量元素(B、Cu、Fe、Ni、Zn)和有毒元素(Al、As、Cd、Pb、Tl)与褐腐真菌不同,且与营养策略无关。后两种规律不仅涉及定居于针叶树上的WDF物种,还包括生长在落叶树上的WDF物种。因此,本文所获得的新结果表明,主要定植于针叶树的WDF的矿物质营养可能受到(1)真菌营养策略的影响,(2)腐烂类型-参与特定细胞壁成分的优先分解和真菌对给定元素的需求,参与木材CWs的分解策略,(3)在较小程度上受木材样品中元素浓度的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Elemental uptake and accumulation by wood decay fungi in relation to their nutrition strategy, rot type and mineral profile of the colonized wood

Elemental uptake and accumulation by wood decay fungi in relation to their nutrition strategy, rot type and mineral profile of the colonized wood
The uptake and accumulation of essential and toxic elements by wood decay fungi (WDF) are complex. We examined the mineral profile of 13 WDF colonizing coniferous and deciduous trees. To illustrate the role of nutritional strategies and rot type in selected elements uptake and accumulation, four fungi species differing in their nutrition strategy and the type of decay, colonizing only conifers were selected: two white rot: saprotrophic Pseudohydnum gelatinosum, and parasitic Phellinus pini and two brown rot, saprotrophic/parasitic Phaeolus schweinitzii and saprotrophic Tapinella atrotomentosa. The obtained results revealed that the concentration of most selected major elements (K, Mg, Na, P) in the sporocarps of the two saprotrophic WDF species was significantly higher than in the parasitic or saprotrophic/parasitic ones and that the concentration in the colonized wood located under the sporocarp projecting from the trunk or root. Furthermore, it was found that white rot fungi, independent of their nutritional strategy, accumulated significantly more of most selected minor (B, Cu, Fe, Ni, Zn) and toxic (Al, As, Cd, Pb, Tl) elements in their sporocarps than brown rot species. These last two rules concerned WDF species colonizing coniferous trees but also included WDF species growing on deciduous trees.
Hence, obtained, novel results of this paper demonstrated that the mineral nutrition of WDF, mainly colonizing coniferous trees, may be influenced by (1) fungus nutrition strategy, (2) the type of decay - involved in the preferential decomposition of specific cell wall components and fungus demand for given element, involved in wood CWs decomposition strategy and (3) to a lesser extent by the elements concentration in the wood samples.
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来源期刊
Fungal biology
Fungal biology MYCOLOGY-
CiteScore
5.80
自引率
4.00%
发文量
80
审稿时长
49 days
期刊介绍: Fungal Biology publishes original contributions in all fields of basic and applied research involving fungi and fungus-like organisms (including oomycetes and slime moulds). Areas of investigation include biodeterioration, biotechnology, cell and developmental biology, ecology, evolution, genetics, geomycology, medical mycology, mutualistic interactions (including lichens and mycorrhizas), physiology, plant pathology, secondary metabolites, and taxonomy and systematics. Submissions on experimental methods are also welcomed. Priority is given to contributions likely to be of interest to a wide international audience.
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