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首页> 外文期刊>International Journal of Biometeorology: Journal of the International Society of Biometeorology >Fungi in a changing world: growth rates will be elevated, but spore production may decrease in future climates
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Fungi in a changing world: growth rates will be elevated, but spore production may decrease in future climates

机译：不断变化的世界中的真菌：增长率将提高，但在未来的气候中孢子的产量可能会下降

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Very little is known about the impact of climate change on fungi and especially on spore production. Fungal spores can be allergenic, thus being important for human health. The aim of this study was to investigate how climate change influences the responsive ability of fungi by simulating differing environmental regimes. Fungal species with high spore allergenic potential and atmospheric abundance were grown and experimentally examined under a variety of temperatures and different nutrient availability. Each represented the average decadal air temperature of the 1980s, 1990s and 2000s in the UK, along with an Intergovernmental Panel on Climate Change (IPCC) climate change scenario for 2100. All tests were run on six fungal species: Alternaria alternata, Aspergillus niger, Botrytis cinerea, Cladosporium cladosporioides, Cladosporium oxysporum and Epicoccum purpurascens. Mycelium growth rate and spore production were examined on each single species and competitive capacity among species combinations in pairs. All fungal species grew faster at higher temperatures, and this was more pronounced for the temperature projection in 2100. Most species grew faster when there was lower nutrient availability. Exceptions were the species with the highest growth rate (E. purpurascens) and with the highest competition capacity (A. alternata). Most species (except for E. purpurascens) produced more spores in the richer nutrient medium but fewer as temperature increased. C. cladosporioides was an exception, exponentially increasing its spore production in the temperature of the 2100 scenario. Regarding competitive capacity, no species displayed any significant alterations within the environmental range checked. It is suggested that in future climates, fungi will display dramatic growth responses, with faster mycelium growth and lower spore production, with questions risen on relevant allergen potential.
机译：关于气候变化对真菌尤其是孢子生产的影响知之甚少。真菌孢子可能会引起过敏，因此对人体健康至关重要。这项研究的目的是通过模拟不同的环境制度来研究气候变化如何影响真菌的响应能力。具有高孢子变应原潜力和大气丰度的真菌物种在各种温度和不同养分利用率下生长并进行了实验研究。每个代表英国1980年代，1990年代和2000年代的平均年代际气温，以及政府间气候变化专门委员会（IPCC）在2100年的气候变化情景。所有测试均针对六种真菌进行：链格孢，黑曲霉，灰葡萄孢（Botrytis cinerea），克氏孢子菌（Cladosporium cladosporioides），尖孢克氏菌（Cladosporium oxysporum）和紫Epi（Epicoccum purpurascens）。检查每个单一物种的菌丝体生长速率和孢子产量以及成对物种组合之间的竞争能力。在较高的温度下，所有真菌物种的生长速度都更快，这在2100年的温度预测中更为明显。当营养物质的利用率较低时，大多数物种的生长速度会更快。具有最高增长率（E. purpurascens）和最高竞争能力（A. alternata）的物种除外。大多数物种（除紫癜外）在营养丰富的培养基中产生的孢子更多，但随着温度的升高而减少。 C. cladosporioides是一个例外，在2100年的温度下，其孢子产量呈指数增长。关于竞争能力，在所检查的环境范围内，没有任何物种表现出任何重大变化。建议在未来的气候中，真菌将表现出戏剧性的生长反应，菌丝生长更快，孢子产生量更低，相关的过敏原潜力也随之增加。

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