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The community of root fungi is associated with the growth rate of Norway spruce (Picea abies)
Environmental Microbiology ( IF 4.3 ) Pub Date : 2024-06-05 , DOI: 10.1111/1462-2920.16662 Leena Hamberg 1 , Jarno Vanhatalo 2, 3 , Sannakajsa Velmala 1 , Andy F S Taylor 4 , John MacKay 5 , Sébastien Caron 6 , Fred O Asiegbu 7 , Risto Sievänen 1 , Pasi Raumonen 8 , Tuija Hytönen 1 , Taina Pennanen 1
Environmental Microbiology ( IF 4.3 ) Pub Date : 2024-06-05 , DOI: 10.1111/1462-2920.16662 Leena Hamberg 1 , Jarno Vanhatalo 2, 3 , Sannakajsa Velmala 1 , Andy F S Taylor 4 , John MacKay 5 , Sébastien Caron 6 , Fred O Asiegbu 7 , Risto Sievänen 1 , Pasi Raumonen 8 , Tuija Hytönen 1 , Taina Pennanen 1
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Our study delved into the relationship between root-associated fungi, gene expression and plant morphology in Norway spruce cuttings derived from both slow-and fast-growing trees. We found no clear link between the gene expression patterns of adventitious roots and the growth phenotype, suggesting no fundamental differences in the receptiveness to fungal symbionts between the phenotypes. Interestingly, saplings from slow-growing parental trees exhibited a higher richness of ectomycorrhizal species and larger roots. Some ectomycorrhizal species, typically found on mature spruces, were more prevalent on saplings from slow-growing spruces. The ericoid mycorrhizal fungus, Hyaloscypha hepaticola, showed a stronger association with saplings from fast-growing spruces. Moreover, saplings from slow-growing spruces had a greater number of Ascomycete taxa and free-living saprotrophic fungi. Aboveground sapling stems displayed some phenotypic variation; saplings from fast-growing phenotypes had longer branches but fewer whorls in their stems compared to those from the slow-growing group. In conclusion, the observed root-associated fungi and phenotypic characteristics in young Norway spruces may play a role in their long-term growth rate. This suggests that the early interactions between spruces and fungi could potentially influence their growth trajectory.
中文翻译：
根真菌群落与挪威云杉（Picea abies）的生长速度相关
我们的研究深入研究了来自慢速和快速生长树的挪威云杉插条中与根相关的真菌、基因表达和植物形态之间的关系。我们发现不定根的基因表达模式与生长表型之间没有明确的联系，这表明表型之间对真菌共生体的接受性没有根本差异。有趣的是，生长缓慢的亲本树的树苗表现出更高的外生菌根物种丰富度和更大的根。一些通常在成熟云杉上发现的外生菌根物种在生长缓慢的云杉树苗上更为常见。环状菌根真菌肝透明菌（ Hyaloscypha hepaticola ）与快速生长的云杉树苗的关联性更强。此外，生长缓慢的云杉树苗具有更多数量的子囊菌类群和自由生活的腐生真菌。地上幼苗茎表现出一些表型变异；与生长缓慢的组相比，快速生长表型的树苗具有更长的分枝，但茎中的轮生更少。总之，在挪威云杉幼苗中观察到的根部相关真菌和表型特征可能对其长期生长率发挥作用。这表明云杉和真菌之间的早期相互作用可能会影响它们的生长轨迹。
更新日期：2024-06-06
中文翻译：
根真菌群落与挪威云杉（Picea abies）的生长速度相关
我们的研究深入研究了来自慢速和快速生长树的挪威云杉插条中与根相关的真菌、基因表达和植物形态之间的关系。我们发现不定根的基因表达模式与生长表型之间没有明确的联系，这表明表型之间对真菌共生体的接受性没有根本差异。有趣的是，生长缓慢的亲本树的树苗表现出更高的外生菌根物种丰富度和更大的根。一些通常在成熟云杉上发现的外生菌根物种在生长缓慢的云杉树苗上更为常见。环状菌根真菌肝透明菌（ Hyaloscypha hepaticola ）与快速生长的云杉树苗的关联性更强。此外，生长缓慢的云杉树苗具有更多数量的子囊菌类群和自由生活的腐生真菌。地上幼苗茎表现出一些表型变异；与生长缓慢的组相比，快速生长表型的树苗具有更长的分枝，但茎中的轮生更少。总之，在挪威云杉幼苗中观察到的根部相关真菌和表型特征可能对其长期生长率发挥作用。这表明云杉和真菌之间的早期相互作用可能会影响它们的生长轨迹。
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