Novel Metabolites from the Stem Bark of Brombya sp. Nova (Gap Creek) (Rutaceae)

Two piperonyl derivatives, seven coumarins and two furoquinoline alkaloids were isolated from the aerial parts of a new species of Brombya [Brombya sp. nov. (Gap Creek) (Rutaceae)]. Three of the compounds were new natural metabolites; 7-(3,4-methylenedioxyphenyl)octene-2-one (7,8-dehydromoskachen D), the coumarin 6-(1ξ,2ξ,3-trihydroxy-3-methylbutyl)-7-hydroxy-2H-1-benzopyran-2-one, and the furoquinoline alkaloid 4,5,6,7-tetramethoxyfuro[2,3-b]quinoline (5,6,7-trimethoxydictamnine). The secondary metabolites isolated in this study are typical of the Rutaceae, contrasting with earlier studies on the only other species of Brombya, B. platynema, which yielded only brombyins, for which 7,8-dehydromoskachen D is a possible precursor.

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Penicillium kananaskense, a new species from Alberta soil

Canadian Journal of Botany ◽

10.1139/b94-004 ◽

1994 ◽

Vol 72 (1) ◽

pp. 20-24 ◽

Cited By ~ 4

Author(s):

Keith A. Seifert ◽

J. C. Frisvad ◽

Mary Ann McLean

Keyword(s):

New Species ◽

Secondary Metabolites ◽

Key Words ◽

Rapid Growth ◽

Preliminary Data ◽

Pinus Contorta ◽

The Many ◽

A New Species

The new species Penicillium kananaskense is described based on an isolate from soil in a Pinus contorta forest from Alberta, Canada. Colonies are characterized by their relatively rapid growth, velutinous texture, white to slightly pink conidial masses, growth at 5 °C, and absence of growth at 37 °C. The conidiophores are monoverticillate or have one metula, are up to 300 μm tall, smooth walled or with slightly roughened walls, vesiculate, and bear ampulliform phialides, 8–11.5(−14.5) × 2.5–4 μm, that produce disordered chains of ellipsoidal conidia, 3–5 × 2.5–4 μm, with smooth or finely roughened walls. The species is compared with previously described taxa and its subgeneric affinities are discussed. Preliminary data on the many secondary metabolites produced by the ex-type culture are presented. Key words: Penicillium kananaskense, soil, Pinus contorta var. latifolia, mycotoxins.

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A New Species of Adesmia (Leguminosae, Papilionoideae, Dalbergieae) from Southern Brazil, with Notes on Leaf Anatomy

Phytotaxa ◽

10.11646/phytotaxa.521.1.5 ◽

2021 ◽

Vol 521 (1) ◽

pp. 48-56

Author(s):

THIAGO COBRA E MONTEIRO ◽

JOÃO RICARDO VIEIRA IGANCI ◽

DIANA PACHECO SEIXAS ◽

TATIANE MARIA RODRIGUES ◽

ANA PAULA FORTUNA-PEREZ

Keyword(s):

New Species ◽

Geographic Distribution ◽

Leaf Anatomy ◽

Conservation Status ◽

Glandular Trichomes ◽

Taxonomic Study ◽

Southern Brazil ◽

Aerial Parts ◽

A New Species

A revisional taxonomic study of Adesmia subg. Adesmia ser. Bicolores has unveiled a new species from southern Brazil. Adesmia miottoae is described and illustrated here. Its geographic distribution, phenology, conservation status and morphological similarities with its closest relatives, Adesmia punctata and A. incana, are presented. The species is distinguished by glandular trichomes covering all the aerial parts of the plant, except the corolla. These trichomes are shorter than those of Adesmia punctata. Additionally, a detailed anatomical description of the leaflet blade is provided.

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Isolation of Nannocystis species from Iran and exploring their natural products

10.21203/rs.3.rs-906260/v1 ◽

2021 ◽

Author(s):

Azam Moradi ◽

Mohammad Yaghoubi-Avini ◽

Joachim Wink

Keyword(s):

Natural Products ◽

New Species ◽

Secondary Metabolites ◽

Fibroblast Cell ◽

Fibroblast Cell Line ◽

Active Metabolites ◽

Gram Positive Bacteria ◽

Depth Analysis ◽

L929 Fibroblast ◽

A New Species

Abstract Several different techniques were employed for the isolation of Nannocystis from various sources. A polyphasic approach was used for identification. Twelve strains of N. pusilla, N. exedens, and N. konarekensis with distinctive distribution between climates were identified. The bioactivity was examined against a panel of eight bacteria, two yeasts, and one fungus; cytotoxicity was tested on the L929 fibroblast cell line. Eleven strains mainly inhibit Gram-positive bacteria, and only one isolate was cytotoxic. The extracts analysis by HPLC and LC-MS were compared to Myxobase, and eight different compounds were detected; a correlation was observed between compounds and producing species. 70% of strains had the potential to produce structurally diverse compounds. Nannochelins and althiomycin were the most abundant metabolites. The discovery of a new species of Nannocystis and the high potentiality of strains to produce secondary metabolites encourage further sampling and in-depth analysis of extracts to find new active metabolites.

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A new species of Marmara (Lepidoptera: Gracillariidae: Marmarinae), with an Annotated List of Known Hostplants for the Genus

Zootaxa ◽

10.11646/zootaxa.4337.2.2 ◽

2017 ◽

Vol 4337 (2) ◽

pp. 198 ◽

Cited By ~ 2

Author(s):

CHARLES S. EISEMAN ◽

DONALD R. DAVIS ◽

JULIA A. BLYTH ◽

DAVID L. WAGNER ◽

MICHAEL W. PALMER ◽

...

Keyword(s):

New Species ◽

New World ◽

Stem Bark ◽

Published Data ◽

Undescribed Species ◽

Type Series ◽

Annotated List ◽

Eastern Usa ◽

A New Species

Larvae of the New World gracillariid moth genus Marmara are primarily stem/bark miners, with some species mining in leaves or fruits. We describe a new species, M. viburnella Eiseman & Davis, which feeds on Viburnum, initially mining the leaves but completing development as a stem miner. The type series is from Nantucket Island, Massachusetts, with observations of leaf mines indicating the species is widespread in the eastern USA. Combining previously published data, our own observations, and other sources, we present a list of known Marmara hostplants, many of which represent undescribed species.

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Ophiocordyceps flavida sp. nov. (Ophiocordycipitaceae), a new species from Thailand associated with Pseudogibellula formicarum (Cordycipitaceae), and their bioactive secondary metabolites

Mycological Progress ◽

10.1007/s11557-021-01683-y ◽

2021 ◽

Vol 20 (4) ◽

pp. 477-492

Author(s):

Suchada Mongkolsamrit ◽

Wasana Noisripoom ◽

Siraphop Pumiputikul ◽

Chollaratt Boonlarppradab ◽

Robert A. Samson ◽

...

Keyword(s):

New Species ◽

Secondary Metabolites ◽

Bioactive Secondary Metabolites ◽

A New Species

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A new species of Trichoderma hypoxylon harbours abundant secondary metabolites

Scientific Reports ◽

10.1038/srep37369 ◽

2016 ◽

Vol 6 (1) ◽

Cited By ~ 16

Author(s):

Jingzu Sun ◽

Yunfei Pei ◽

Erwei Li ◽

Wei Li ◽

Kevin D. Hyde ◽

...

Keyword(s):

New Species ◽

Secondary Metabolites ◽

A New Species

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Absence of anthraquinone pigments is paraphyletic and a phylogenetically unreliable character in the Teloschistaceae

The Lichenologist ◽

10.1017/s0024282911000843 ◽

2012 ◽

Vol 44 (3) ◽

pp. 401-418 ◽

Cited By ~ 8

Author(s):

Jan VONDRÁK ◽

Jaroslav ŠOUN ◽

Olga VONDRÁKOVແ ◽

Alan M. FRYDAY ◽

Alexander KHODOSOVTSEV ◽

...

Keyword(s):

New Species ◽

Secondary Metabolites ◽

Related Species ◽

Present Evidence ◽

Its Nrdna ◽

A New Species

AbstractIt has been suggested that the absence of anthraquinones is not a synapomorphic character, but appears independently in unrelated lineages of Teloschistaceae. We analyzed ITS nrDNA regions in species of the genus Caloplaca and present evidence for five such examples: the Caloplaca cerina group, C. obscurella, the C. servitiana group, the C. xerica group and the C. variabilis group (Pyrenodesmia). In some cases, loss of anthraquinones is observed only in individuals within ordinarily pigmented populations, but sometimes the loss covers whole lineages containing one or more species. Both situations are observed in the C. servitiana group. Loss of anthraquinones is always followed by the synthesis of ‘alternative’ pigments (often Sedifolia-grey). In the specimens with anthraquinone-containing apothecia studied, these pigments are not visible in apothecial sections after dissolving anthraquinones in K. Fully unpigmented apothecia have not been observed.The Caloplaca xerica group is a newly established, infraspecific grouping of species related to, and similar to, C. xerica. The Caloplaca servitiana group is also newly established and represents an isolated lineage covering two rather different, but related species. Caloplaca neotaurica is described here as a new species with apothecia of two colour variants; orange-red (with anthraquinones) and grey (with Sedifolia-grey).The genus Huea represents another taxon lacking anthraquinones within Teloschistaceae. The genera Apatoplaca and Cephalophysis, which lack anthraquinones, are tentatively placed in Teloschistaceae, but their phylogenetic identity has not been recognized. Hueidea is reported to have no anthraquinones, but its secondary metabolites should be studied further and its possible placement in Teloschistaceae assessed.We suggest that Caloplaca abbreviata var. lecideoides and C. celata represent variants of C. stillicidiorum lacking anthraquinones.

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