Characterisation of products from fungally modified wollastonite and the simulation experiment of Pb2+ fixation

Wang, Xingxing; Huang, Shanshan; Zhang, Xiaowen; An, Xiaochi; Xu, Min; Lian, Bin

doi:10.1016/j.scitotenv.2020.143357

Cited by 4 publications

(1 citation statement)

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“…From our results, Aspergillus niger and Fusarium oxysporum have the abilities to dissolve calcium carbonate and precipitate calcium in the form of wollastonite. This finding is consistent with the study by Yu et al, 2021 [ 26 ], which demonstrated that A. niger facilitated the weathering of wollastonite and was also capable of crystallizing wollastonite. The dissolution and precipitation of calcium associated with fungal growth can lead to the formation of calcium crystals.…”

Section: Discussionsupporting

confidence: 93%

Seasonal Variations in Fungal Communities on the Surfaces of Lan Na Sandstone Sculptures and Their Biodeterioration Capacities

Nonthijun,

Mills,

Mills

et al. 2023

JoF

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Environmental factors and climate are the primary factors influencing the microbial colonization and deterioration of cultural heritage in outdoor environments. Hence, it is imperative to investigate seasonal variations in microbial communities and the biodeterioration they cause. This study investigated the surfaces of sandstone sculptures at Wat Umong Suan Phutthatham, Chiang Mai, Thailand, during wet and dry seasons using culture-dependent and culture-independent approaches. The fungi isolated from the sandstone sculptures were assessed for biodeterioration attributes including drought tolerance, acid production, calcium crystal formation, and calcium precipitation. The results show that most of the fungal isolates exhibited significant potential for biodeterioration activities. Furthermore, a culture-independent approach was employed to investigate the fungal communities and assess their diversity, interrelationship, and predicted function. The fungal diversity and the communities varied seasonally. The functional prediction indicated that pathotroph–saprotroph fungi comprised the main fungal guild in the dry season, and pathotroph–saprotroph–symbiotroph fungi comprised the dominant guild in the wet season. Remarkably, a network analysis revealed numerous positive correlations among fungal taxa within each season, suggesting a potential synergy that promotes the biodeterioration of sandstone. These findings offer valuable insights into seasonal variations in fungal communities and their impacts on the biodeterioration of sandstone sculptures. This information can be utilized for monitoring, management, and maintenance strategies aimed at preserving this valuable cultural heritage.

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Section: Discussionsupporting

confidence: 93%