Phenylalanine Promotes Biofilm Formation of <i>Meyerozyma caribbica</i> to Improve Biocontrol Efficacy against Jujube Black Spot Rot

During storage and transportation after harvest, the jujube fruit is susceptible to black spot rot, which is caused by <i>Alternaria alternata</i>. The present study aimed to evaluate the effectiveness of the yeast <i>Meyerozyma caribbica</i> in controlling <i>A. altern...

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Main Authors: Qian Deng, Xingmeng Lei, Hongyan Zhang, Lili Deng, Lanhua Yi, Kaifang Zeng
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/8/12/1313
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author Qian Deng
Xingmeng Lei
Hongyan Zhang
Lili Deng
Lanhua Yi
Kaifang Zeng
author_facet Qian Deng
Xingmeng Lei
Hongyan Zhang
Lili Deng
Lanhua Yi
Kaifang Zeng
author_sort Qian Deng
collection DOAJ
description During storage and transportation after harvest, the jujube fruit is susceptible to black spot rot, which is caused by <i>Alternaria alternata</i>. The present study aimed to evaluate the effectiveness of the yeast <i>Meyerozyma caribbica</i> in controlling <i>A. alternata</i> in postharvest jujube fruits, and to explore the biofilm formation mechanism. The results showed that <i>M. caribbica</i> treatment significantly reduced the <i>A. alternata</i> decay in jujube fruits. <i>M. caribbica</i> could rapidly colonize jujube fruit wounds, adhering tightly to hyphae of <i>A. alternata</i>, and accompanied by the production of extracellular secretions. In <i>in vitro</i> experiments, we identified that <i>M. caribbica</i> adhered to polystyrene plates, indicating a strong biofilm-forming ability. Furthermore, we demonstrated that <i>M. caribbica</i> can secrete phenylethanol, a quorum sensing molecule which can affect biofilm development. Phenylalanine (a precursor substance for phenylethanol synthesis) enhanced the secretion of phenylethanol and promoted the formation of <i>M. caribbica</i> biofilms. Meanwhile, phenylalanine enhanced the biological control performance of <i>M. caribbica</i> against jujube black spot rot. Our study provided new insights that enhance the biological control performance of antagonistic yeast.
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spelling doaj.art-149b544737db4b2fa2a83fd95fa1f8a32023-11-24T16:00:20ZengMDPI AGJournal of Fungi2309-608X2022-12-01812131310.3390/jof8121313Phenylalanine Promotes Biofilm Formation of <i>Meyerozyma caribbica</i> to Improve Biocontrol Efficacy against Jujube Black Spot RotQian Deng0Xingmeng Lei1Hongyan Zhang2Lili Deng3Lanhua Yi4Kaifang Zeng5College of Food Science, Southwest University, Chongqing 400715, ChinaCollege of Food Science, Southwest University, Chongqing 400715, ChinaCollege of Food Science, Southwest University, Chongqing 400715, ChinaCollege of Food Science, Southwest University, Chongqing 400715, ChinaCollege of Food Science, Southwest University, Chongqing 400715, ChinaCollege of Food Science, Southwest University, Chongqing 400715, ChinaDuring storage and transportation after harvest, the jujube fruit is susceptible to black spot rot, which is caused by <i>Alternaria alternata</i>. The present study aimed to evaluate the effectiveness of the yeast <i>Meyerozyma caribbica</i> in controlling <i>A. alternata</i> in postharvest jujube fruits, and to explore the biofilm formation mechanism. The results showed that <i>M. caribbica</i> treatment significantly reduced the <i>A. alternata</i> decay in jujube fruits. <i>M. caribbica</i> could rapidly colonize jujube fruit wounds, adhering tightly to hyphae of <i>A. alternata</i>, and accompanied by the production of extracellular secretions. In <i>in vitro</i> experiments, we identified that <i>M. caribbica</i> adhered to polystyrene plates, indicating a strong biofilm-forming ability. Furthermore, we demonstrated that <i>M. caribbica</i> can secrete phenylethanol, a quorum sensing molecule which can affect biofilm development. Phenylalanine (a precursor substance for phenylethanol synthesis) enhanced the secretion of phenylethanol and promoted the formation of <i>M. caribbica</i> biofilms. Meanwhile, phenylalanine enhanced the biological control performance of <i>M. caribbica</i> against jujube black spot rot. Our study provided new insights that enhance the biological control performance of antagonistic yeast.https://www.mdpi.com/2309-608X/8/12/1313<i>Meyerozyma caribbica</i>jujubeblack spot rotbiofilm formationphenylalanine
spellingShingle Qian Deng
Xingmeng Lei
Hongyan Zhang
Lili Deng
Lanhua Yi
Kaifang Zeng
Phenylalanine Promotes Biofilm Formation of <i>Meyerozyma caribbica</i> to Improve Biocontrol Efficacy against Jujube Black Spot Rot
Journal of Fungi
<i>Meyerozyma caribbica</i>
jujube
black spot rot
biofilm formation
phenylalanine
title Phenylalanine Promotes Biofilm Formation of <i>Meyerozyma caribbica</i> to Improve Biocontrol Efficacy against Jujube Black Spot Rot
title_full Phenylalanine Promotes Biofilm Formation of <i>Meyerozyma caribbica</i> to Improve Biocontrol Efficacy against Jujube Black Spot Rot
title_fullStr Phenylalanine Promotes Biofilm Formation of <i>Meyerozyma caribbica</i> to Improve Biocontrol Efficacy against Jujube Black Spot Rot
title_full_unstemmed Phenylalanine Promotes Biofilm Formation of <i>Meyerozyma caribbica</i> to Improve Biocontrol Efficacy against Jujube Black Spot Rot
title_short Phenylalanine Promotes Biofilm Formation of <i>Meyerozyma caribbica</i> to Improve Biocontrol Efficacy against Jujube Black Spot Rot
title_sort phenylalanine promotes biofilm formation of i meyerozyma caribbica i to improve biocontrol efficacy against jujube black spot rot
topic <i>Meyerozyma caribbica</i>
jujube
black spot rot
biofilm formation
phenylalanine
url https://www.mdpi.com/2309-608X/8/12/1313
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AT lilideng phenylalaninepromotesbiofilmformationofimeyerozymacaribbicaitoimprovebiocontrolefficacyagainstjujubeblackspotrot
AT lanhuayi phenylalaninepromotesbiofilmformationofimeyerozymacaribbicaitoimprovebiocontrolefficacyagainstjujubeblackspotrot
AT kaifangzeng phenylalaninepromotesbiofilmformationofimeyerozymacaribbicaitoimprovebiocontrolefficacyagainstjujubeblackspotrot