Effect of Citronellal on Ergosterol Synthesis in Penicillium digitatum Spores

In this study, the effect of citronellal on the synthesis of ergosterol in the spores of imazalil-sensitive (Pds01) and imazalil-resistant (Pdw03) strains of Penicillium digitatum was investigated. The results showed that citronellal significantly inhibited the spore germination of Pds01 and Pdw03 w...

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Main Author: TAO Nengguo, MENG Kuixian, YU Haomiao, OUYANG Qiuli
Format: Article
Language:English
Published: China Food Publishing Company 2023-06-01
Series:Shipin Kexue
Subjects:
Online Access:https://www.spkx.net.cn/fileup/1002-6630/PDF/2023-44-12-014.pdf
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author TAO Nengguo, MENG Kuixian, YU Haomiao, OUYANG Qiuli
author_facet TAO Nengguo, MENG Kuixian, YU Haomiao, OUYANG Qiuli
author_sort TAO Nengguo, MENG Kuixian, YU Haomiao, OUYANG Qiuli
collection DOAJ
description In this study, the effect of citronellal on the synthesis of ergosterol in the spores of imazalil-sensitive (Pds01) and imazalil-resistant (Pdw03) strains of Penicillium digitatum was investigated. The results showed that citronellal significantly inhibited the spore germination of Pds01 and Pdw03 with half maximal inhibitory concentration (IC50) of 0.8 and 3.2 µL/mL, respectively. Citronellal at its IC50 significantly decreased and increased the contents of ergosterol and lanosterol in Pds01 and Pdw03 spores, respectively. The expression of key genes involved in ergosterol synthesis was significantly affected. The up-regulated expression of the ERG9 gene in Pds01 peaked earlier than that in Pdw03, and the expression level of ERG3 was significantly down-regulated in both strains. This study showed that citronellal reduced ergosterol synthesis in Pds01 and Pdw03 spores by inhibiting ERG3 expression, thereby affecting spore germination, which could provide a theoretical basis for the development of green preservatives for postharvest citrus diseases.
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spelling doaj.art-a1a65f31c50249e7a1657ee6697afa5b2023-07-25T06:04:50ZengChina Food Publishing CompanyShipin Kexue1002-66302023-06-01441210811410.7506/spkx1002-6630-20220614-139Effect of Citronellal on Ergosterol Synthesis in Penicillium digitatum SporesTAO Nengguo, MENG Kuixian, YU Haomiao, OUYANG Qiuli0(College of Chemical Engineering, Xiangtan University, Xiangtan 411105, China)In this study, the effect of citronellal on the synthesis of ergosterol in the spores of imazalil-sensitive (Pds01) and imazalil-resistant (Pdw03) strains of Penicillium digitatum was investigated. The results showed that citronellal significantly inhibited the spore germination of Pds01 and Pdw03 with half maximal inhibitory concentration (IC50) of 0.8 and 3.2 µL/mL, respectively. Citronellal at its IC50 significantly decreased and increased the contents of ergosterol and lanosterol in Pds01 and Pdw03 spores, respectively. The expression of key genes involved in ergosterol synthesis was significantly affected. The up-regulated expression of the ERG9 gene in Pds01 peaked earlier than that in Pdw03, and the expression level of ERG3 was significantly down-regulated in both strains. This study showed that citronellal reduced ergosterol synthesis in Pds01 and Pdw03 spores by inhibiting ERG3 expression, thereby affecting spore germination, which could provide a theoretical basis for the development of green preservatives for postharvest citrus diseases.https://www.spkx.net.cn/fileup/1002-6630/PDF/2023-44-12-014.pdfpenicillium digitatum; citronellal; spore germination; erg3 gene; ergosterol
spellingShingle TAO Nengguo, MENG Kuixian, YU Haomiao, OUYANG Qiuli
Effect of Citronellal on Ergosterol Synthesis in Penicillium digitatum Spores
Shipin Kexue
penicillium digitatum; citronellal; spore germination; erg3 gene; ergosterol
title Effect of Citronellal on Ergosterol Synthesis in Penicillium digitatum Spores
title_full Effect of Citronellal on Ergosterol Synthesis in Penicillium digitatum Spores
title_fullStr Effect of Citronellal on Ergosterol Synthesis in Penicillium digitatum Spores
title_full_unstemmed Effect of Citronellal on Ergosterol Synthesis in Penicillium digitatum Spores
title_short Effect of Citronellal on Ergosterol Synthesis in Penicillium digitatum Spores
title_sort effect of citronellal on ergosterol synthesis in penicillium digitatum spores
topic penicillium digitatum; citronellal; spore germination; erg3 gene; ergosterol
url https://www.spkx.net.cn/fileup/1002-6630/PDF/2023-44-12-014.pdf
work_keys_str_mv AT taonengguomengkuixianyuhaomiaoouyangqiuli effectofcitronellalonergosterolsynthesisinpenicilliumdigitatumspores