PHYTOTOXIC CONSTITUENTS FROM ENDOPHYTIC FUNGUS Xylaria cubensis ASSOCIATED WITH Eugenia brasiliensis

Biasetto, Carolina Rabal; Somensi, Andressa; Abdalla, Viviane de C. P.; Abreu, Lucas M.; Gualtieri, Sônia Cristina Juliano; Pfenning, Ludwig H.; Bolzani, Vanderlan S.; Araújo, Ângela R.

doi:10.21577/0100-4042.20170367

Cited by 6 publications

(5 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…grasses) to assess the phytotoxicity. Both, cytochalasins C and D exhibited a stronger growth inhibition than a commercially available herbicide containing oxyfluorfen [32]. These results might be used as a starting point for further studies investigating the use of cytochalasans as cropcontrol agents.…”

Section: Cytochalasans From Xylariaceae (Fig 3)mentioning

confidence: 82%

See 1 more Smart Citation

Recent progress in biodiversity research on the Xylariales and their secondary metabolism

Becker

Stadler

2020

J Antibiot

View full text Add to dashboard Cite

The families Xylariaceae and Hypoxylaceae (Xylariales, Ascomycota) represent one of the most prolific lineages of secondary metabolite producers. Like many other fungal taxa, they exhibit their highest diversity in the tropics. The stromata as well as the mycelial cultures of these fungi (the latter of which are frequently being isolated as endophytes of seed plants) have given rise to the discovery of many unprecedented secondary metabolites. Some of those served as lead compounds for development of pharmaceuticals and agrochemicals. Recently, the endophytic Xylariales have also come in the focus of biological control, since some of their species show strong antagonistic effects against fungal and other pathogens. New compounds, including volatiles as well as nonvolatiles, are steadily being discovered from these ascomycetes, and polythetic taxonomy now allows for elucidation of the life cycle of the endophytes for the first time. Moreover, recently high-quality genome sequences of some strains have become available, which facilitates phylogenomic studies as well as the elucidation of the biosynthetic gene clusters (BGC) as a starting point for synthetic biotechnology approaches. In this review, we summarize recent findings, focusing on the publications of the past 3 years.

show abstract

Section: Cytochalasans From Xylariaceae (Fig 3)mentioning

confidence: 82%

“…Furthermore, the known cytotoxic compounds cytochalasin C and D were isolated from Xylaria cubensis and evaluated for their phytotoxic potential [32]. An assay was conducted measuring the length of wheat coleoptiles (sheath protecting the emerging shoot in monocotyledons, e.g.…”

Section: Cytochalasans From Xylariaceae (Fig 3)mentioning

confidence: 99%

Recent progress in biodiversity research on the Xylariales and their secondary metabolism

Becker

Stadler

2020

J Antibiot

View full text Add to dashboard Cite

show abstract

“…Cytochalasins C ( 449 ) and D ( 450 ) were isolated from the endophytic fungus Xylaria cubensis associated with Eugenia brasiliensis (Myrtaceae). Both cytochalasins showed phytotoxic activity on wheat coleoptiles [ 291 ]. Cytochalasin D ( 450 ) was also isolated from the culture filtrates of Ascochyta rabiei (teleomorph: Didymella rabiei ), the pathogen of chickpea.…”

Section: Nitrogen-containing Metabolitesmentioning

confidence: 99%

“…Among them, cochliobolin F (274), drechslerine B (276), helminthosporal acid (291), and helminthosporic acid (293) displayed strong phytotoxic effects on corn leaves by producing visible lesions [23]. Both helminthosporal acid (291) and helminthosporol (294) were also isolated from Bipolaris sorokiniana. These two compounds inhibited seed germination of lettuce [195].…”

Section: Sesquiterpenoidsmentioning

confidence: 99%

Phytotoxic Secondary Metabolites from Fungi

Xue

Shen

et al. 2021

Toxins

View full text Add to dashboard Cite

Fungal phytotoxic secondary metabolites are poisonous substances to plants produced by fungi through naturally occurring biochemical reactions. These metabolites exhibit a high level of diversity in their properties, such as structures, phytotoxic activities, and modes of toxicity. They are mainly isolated from phytopathogenic fungal species in the genera of Alternaria, Botrytis, Colletotrichum, Fusarium, Helminthosporium, and Phoma. Phytotoxins are either host specific or non-host specific phytotoxins. Up to now, at least 545 fungal phytotoxic secondary metabolites, including 207 polyketides, 46 phenols and phenolic acids, 135 terpenoids, 146 nitrogen-containing metabolites, and 11 others, have been reported. Among them, aromatic polyketides and sesquiterpenoids are the main phytotoxic compounds. This review summarizes their chemical structures, sources, and phytotoxic activities. We also discuss their phytotoxic mechanisms and structure–activity relationships to lay the foundation for the future development and application of these promising metabolites as herbicides.

show abstract

“…Many xylariacean endophytes are a source of bioactive secondary metabolites with antibacterial, antioxidative, anti-carcinogenic, and other properties [ 45 , 46 ]. Unfortunately, we could not obtain cultures from these isolates, and thus, they were not accessible for phylogenetic studies.…”

Section: Discussionmentioning

confidence: 99%

Four New Pale-Spored Species of Xylaria (Xylariaceae, Xylariales) with a Key to Worldwide Species on Fallen Fruits and Seeds

Song

et al. 2022

Biology

View full text Add to dashboard Cite

Xylaria, a large and cosmopolitan genus of Ascomycota, plays an important ecological role in forest ecology as wood-decomposers, and serve as a source of bioactive secondary metabolites. The present work concerns a survey of Xylaria from Southwest China. Four new species of Xylaria with pale-colored ascospores associated with fallen fruits and seeds are described and illustrated based on morphological and phylogenetic evidences. The phylogeny inferred from a combined dataset of ITS-RPB2-β-tubulin sequences supports these four species as distinct species. The four new taxa, namely Xylariarogersii, X. schimicola, X. theaceicola, and X. wallichii, are compared and contrasted against morphologically similar species. A dichotomous identification key to all the accepted species of Xylaria associated with fallen fruits and seeds is given.

show abstract

PHYTOTOXIC CONSTITUENTS FROM ENDOPHYTIC FUNGUS Xylaria cubensis ASSOCIATED WITH Eugenia brasiliensis

Cited by 6 publications

References 13 publications

Recent progress in biodiversity research on the Xylariales and their secondary metabolism

Recent progress in biodiversity research on the Xylariales and their secondary metabolism

Phytotoxic Secondary Metabolites from Fungi

Four New Pale-Spored Species of Xylaria (Xylariaceae, Xylariales) with a Key to Worldwide Species on Fallen Fruits and Seeds

Contact Info

Product

Resources

About