Distinctive features of Camillea (Xylariaceae) from Cuyabeno as revealed by scanning electron microscopy

Whalley, M. A.

doi:10.1016/s0269-915x(96)80003-6

Cited by 4 publications

(4 citation statements)

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“…We collected 15 Camillea specimens belonging to three species: C. bilabiata (HSTM-Fungi 12288; 12284; 12281; 12277; 12279; 12286), C. cyclops (HSTM-Fungi 10799; 12285; 12283; 12282; 12280; 12278; 12276) and C. leprieurii (HSTM-Fungi 12290; 12287). The fungi were found on trunks and branches of fallen trees with rigid decomposition, a habitat that coincides with what is known from other species of the family (Laessøe et al 1989;Whalley 1996;Pereira 2011;2015).…”

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confidence: 72%

Contribution to the knowledge of Camillea (Ascomycota, Graphostromataceae) in the Amazon forest in Pará, Brazil

Santana

Couceiro

2020

Acta Amaz.

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Three species of the Ascomycetes genus Camillea were recorded in a fragment of Amazon rainforest in the region of Santarém, Pará state, Brazil. The occurrence of C. leprieurii, C. cyclops and C. bilabiata expand the range of distribution of these species in the state. Camillea leprieurii has previous records in the regions of Marabá, Oriximiná, Itaituba and Novo Progresso, while C. cyclops had been recorded in the west of the state. This is the first record of C. bilabiata for Pará. We provide a morphological description of the specimens and an identification key for Camillea species found in Pará.

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supporting

confidence: 72%

Contribution to the knowledge of Camillea (Ascomycota, Graphostromataceae) in the Amazon forest in Pará, Brazil

Santana

Couceiro

2020

Acta Amaz.

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“…Taxonomic recognition of both genera and species relies on traditional morphological characters: shape, size, color, surface features and microscopic details of the asci and ascospores. Studies using scanning electron microscopy [13]–[15] and chemical and molecular data have sharpened the boundaries of both species and genera [10], [11], [15]–[20]. Nevertheless, the separation of some closely related species remains difficult, and as in other group of fungi the number of cryptic or sibling species can be high [21].…”

Section: Introductionmentioning

confidence: 99%

“…Thailand is a tropical area in which many xylariaceous fungi are likely still unknown [3], [8], [15], [22], [23], so only a few reports on species of Annulohypoxylon and Hypoxylon are extant [10], [11], [24]. Many species reported from different localities exist only in a single collection, so without more specimens of them to display suitable distinguishing key characteristics, their taxonomy remains unhelpfully vague.…”

Section: Introductionmentioning

confidence: 99%

Fungi in Thailand: A Case Study of the Efficacy of an ITS Barcode for Automatically Identifying Species within the Annulohypoxylon and Hypoxylon Genera

et al. 2013

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Thailand, a part of the Indo-Burma biodiversity hotspot, has many endemic animals and plants. Some of its fungal species are difficult to recognize and separate, complicating assessments of biodiversity. We assessed species diversity within the fungal genera Annulohypoxylon and Hypoxylon, which produce biologically active and potentially therapeutic compounds, by applying classical taxonomic methods to 552 teleomorphs collected from across Thailand. Using probability of correct identification (PCI), we also assessed the efficacy of automated species identification with a fungal barcode marker, ITS, in the model system of Annulohypoxylon and Hypoxylon. The 552 teleomorphs yielded 137 ITS sequences; in addition, we examined 128 GenBank ITS sequences, to assess biases in evaluating a DNA barcode with GenBank data. The use of multiple sequence alignment in a barcode database like BOLD raises some concerns about non-protein barcode markers like ITS, so we also compared species identification using different alignment methods. Our results suggest the following. (1) Multiple sequence alignment of ITS sequences is competitive with pairwise alignment when identifying species, so BOLD should be able to preserve its present bioinformatics workflow for species identification for ITS, and possibly therefore with at least some other non-protein barcode markers. (2) Automated species identification is insensitive to a specific choice of evolutionary distance, contributing to resolution of a current debate in DNA barcoding. (3) Statistical methods are available to address, at least partially, the possibility of expert misidentification of species. Phylogenetic trees discovered a cryptic species and strongly supported monophyletic clades for many Annulohypoxylon and Hypoxylon species, suggesting that ITS can contribute usefully to a barcode for these fungi. The PCIs here, derived solely from ITS, suggest that a fungal barcode will require secondary markers in Annulohypoxylon and Hypoxylon, however. The URL http://tinyurl.com/spouge-barcode contains computer programs and other supplementary material relevant to this article.

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“…Jongiella ) (Læssøe et al 1989, Rogers et al . 1991, Whalley 1995, 1996, Whalley et al . 1996, 1999).…”

Section: Resultsmentioning

confidence: 99%

Ascus apical apparatus and ascospore characters in Xylariaceae

Suwannasai

Whalley

et al. 2012

IMA Fungus

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Members of Xylariaceae (Ascomycota) are recognized and classified mainly on the morphological features of their sexual state. In a number of genera high morphological variation of stromatal characters has made confident recognition of generic and specific boundaries difficult. There are, however, a range of microscopical characteristics which can in most cases make distinctions, especially at generic level, even in the absence of molecular data. These include details of the apical apparatus in the ascus (e.g. disc-shaped, inverted hat-shaped, rhomboid, composed of rings, amyloid, non-amyloid); position and length of the germ slit; and presence and type of ascospore wall ornamentation as seen by scanning electron microscopy (SEM). Unfortunately many of the classical studies on xylariaceous genera omitted these features and were undertaken long before the development of scanning electron microscopy. More recent studies have, however, demonstrated their value as diagnostic characters in the family. Camillea is for example, instantly recognizable by its rhomboid or diamond shaped apical apparatus, and the distinctive inverted hat or urniform type is usually prominent in Xylaria, Rosellinia, Kretzschmaria, and Nemania. At least six categories of apical apparatus based on shape and size can be recognized. Ascospore ornamentation as seen by SEM has been exceptionally useful and provided the basis for separating Camillea from Biscogniauxia and other xylariaceous genera.

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Distinctive features of Camillea (Xylariaceae) from Cuyabeno as revealed by scanning electron microscopy

Cited by 4 publications

References 1 publication

Contribution to the knowledge of Camillea (Ascomycota, Graphostromataceae) in the Amazon forest in Pará, Brazil

Contribution to the knowledge of Camillea (Ascomycota, Graphostromataceae) in the Amazon forest in Pará, Brazil

Fungi in Thailand: A Case Study of the Efficacy of an ITS Barcode for Automatically Identifying Species within the Annulohypoxylon and Hypoxylon Genera

Ascus apical apparatus and ascospore characters in Xylariaceae

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