3-Decalinoyltetramic acids from kiwi-associated fungus <i>Zopfiella</i> sp. and their antibacterial activity against <i>Pseudomonas syringae</i>

Yi, Xue-Wen; He, Juan; Sun, Li-Tang; Liu, Ji‐Kai; Wang, Guo-Kai; Feng, Tao

doi:10.1039/d1ra02120f

Cited by 18 publications

(7 citation statements)

References 18 publications

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“…Therefore, we carried out the excavation of anti-Psa active substances from metabolites of kiwifruit endophytes and harvested a number of bioactive molecules. For instance, 3-decalinoyltetramic acids and cytochalasins from the kiwifruit endophytic fungus Zopfiella sp showed anti-Psa activity [23,24], while imidazole alkaloids ether were characterized as anti-Psa agents from Fusarium tricinctum [25]. These discoveries prompted us to search for more novel and bioactive metabolites from kiwifruitassociated fungi.…”

Section: Introductionmentioning

confidence: 99%

Sesquiterpenoids and Xanthones from the Kiwifruit-Associated Fungus Bipolaris sp. and Their Anti-Pathogenic Microorganism Activity

Jin

Huang

et al. 2021

JoF

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Nine previously undescribed sesquiterpenoids, bipolarisorokins A–I (1–9); two new xanthones, bipolarithones A and B (10 and 11); two novel sativene-xanthone adducts, bipolarithones C and D (12 and 13); as well as five known compounds (14–18) were characterized from the kiwifruit-associated fungus Bipolaris sp. Their structures were elucidated by extensive spectroscopic methods, electronic circular dichroism (ECD), 13C NMR calculations, DP4+ probability analyses, and single crystal X-ray diffractions. Many compounds exhibited anti-pathogenic microorganism activity against the bacterium Pseudomonas syringae pv. actinidiae and four pathogenic microorganisms.

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Section: Introductionmentioning

confidence: 99%

Sesquiterpenoids and Xanthones from the Kiwifruit-Associated Fungus Bipolaris sp. and Their Anti-Pathogenic Microorganism Activity

Jin

Huang

et al. 2021

JoF

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“…77 Zopfiella can produce secondary metabolites that exhibit antibacterial activity against plant pathogens such as Pseudomonas syringae. 78 The overall findings suggest that foliar application of ZnO QDs altered the rhizosphere fungal community, which may contribute to the enrichment of beneficial fungi, thereby promoting plant growth.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Foliar Applied ZnO Quantum Dots Boost Pumpkin (Cucurbita moschata Duch.) Growth and Positively Alter Endophytic and Rhizosphere Microbial Communities

Liang

et al. 2023

ACS Sustainable Chem. Eng.

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Systematic understanding of the impact of nanomaterials (NMs) on the health and activity of plant-associated microorganisms is required for sustainable development of efficient nano-enabled agrochemicals. Zinc (Zn) is an essential micronutrient for plant growth and development. It plays a vital role in various physiological processes, including enzyme activation, protein synthesis, cell division, etc. The present study investigated the effects of foliar exposure to different sizes of ZnO particles, including ZnO quantum dots (ZnO QDs, 4.06 nm), ZnO nanoparticles (ZnO NPs, 60.0 nm), bulk-scale ZnO particles (ZnO BPs, 464.5 nm), and Zn ions at an equivalent Zn molar concentration (0.61 mM) on the endophytic and rhizosphere microbial communities of pumpkin seedlings. ZnO QDs increased the total plant biomass by 24.6% as compared to the control. ZnO QDs also increased the contents of total chlorophyll and carotenoids, elevated micronutrient (Zn, Fe, and B) uptake, and triggered the activities of antioxidant enzymes, such as peroxidase (POD), polyphenol oxidase (PPO), and catalase (CAT), as compared to controls. The composition and diversity of the endophytic and rhizosphere bacterial or fungal communities were significantly altered as a function of ZnO NM size, and a significant difference between the control and ZnO treatments was also evident. Linear discriminant effect size analysis (LEfSe) shows that the putative beneficial host microbes Steroidobacter (relative abundance, RA: 1.05%) and Paenibacillus (RA: 0.59%) were enriched in pumpkin seedlings treated with ZnO QDs, which may lead to greater plant growth, nutrient acquisition, and stress resistance. Cooccurrence networks indicate that ZnO QDs increased both node and link numbers of the bacterial networks by 46.94 and 123.38% in the roots, which could further stabilize the microbial community and confer resistance to environmental disturbance. Our overall findings demonstrate that ZnO QDs could enhance plant growth both directly by improving physiological performances and indirectly by modulating beneficial endophytic and rhizosphere microorganisms. Thus, nano-enabled strategies can be a promising and sustainable approach to increase crop growth and resistance to stress.

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“…According to a lot of screening work, one of the kiwi-associated fungi, Zopfiella sp, exhibits good inhibitory activity on Psa, and chemical investigations on this fungus have been carried out. Previously, bisabolane sesquiterpenes, α-pyrone derivatives, and 3-decalinoyltetramic acid derivatives have been isolated from this fungus [14,15], while the 3-decalinoyltetramic acid derivatives such as zofielliamides A, B, and D showed anti-Psa activity with MIC values of 64, 32, and 64 µg/mL, respectively [15]. In this study, four cytochalasins, namely zopfiellasins A-D (1-4), are characterized from Zopfiella sp.…”

Section: Introductionmentioning

confidence: 89%

Zopfiellasins A–D, Two Pairs of Epimeric Cytochalasins from Kiwi-Associated Fungus Zopfiella sp. and Their Antibacterial Assessment

Zhang

et al. 2021

Molecules

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In our continuous search for antibacterial agents against Pseudomonas syringae pv. actinidiae (Psa) from kiwi-associated fungi, two pairs of epimeric cytochalasins, zopfiellasins A–D (1–4), were characterized from the fungus Zopfiella sp. The structures were established on the basis of spectroscopic data analysis, while the absolute configurations were determined by single-crystal X-ray diffraction. Compounds 1 and 3 exhibited antibacterial activity against Psa with MIC values of 25 and 50 μg/mL, respectively. This is the first report of anti-Psa activity of cytochalasin derivatives.

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3-Decalinoyltetramic acids from kiwi-associated fungus Zopfiella sp. and their antibacterial activity against Pseudomonas syringae

Abstract: Four rare 3-decalinoyltetramic acid derivatives, zofielliamides A–D (1–4), were obtained from cultures of kiwi-associated fungus Zopfiella sp.

Cited by 18 publications

References 18 publications

Sesquiterpenoids and Xanthones from the Kiwifruit-Associated Fungus Bipolaris sp. and Their Anti-Pathogenic Microorganism Activity

Sesquiterpenoids and Xanthones from the Kiwifruit-Associated Fungus Bipolaris sp. and Their Anti-Pathogenic Microorganism Activity

Foliar Applied ZnO Quantum Dots Boost Pumpkin (Cucurbita moschata Duch.) Growth and Positively Alter Endophytic and Rhizosphere Microbial Communities

Zopfiellasins A–D, Two Pairs of Epimeric Cytochalasins from Kiwi-Associated Fungus Zopfiella sp. and Their Antibacterial Assessment

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