A new species of Podosphaera sect. Sphaerotheca subsect. Sphaerotheca from India—first report of powdery mildew causing wilting and ultimately death of leaves of Filipendula vestita

Phytotaxa ◽  
2021 ◽  
Vol 491 (2) ◽  
pp. 131-142
Author(s):  
SANJAY YADAV ◽  
SANJEET KUMAR VERMA ◽  
RAGHVENDRA SINGH
Keyword(s):  
New Species ◽  
Powdery Mildew ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Rdna Sequence ◽  
Its Rdna ◽  
First Report ◽  
Rdna Sequence Data ◽  
A New Species

Podosphaera filipendulensis, a new teleomorph of powdery mildew was discovered on living leaves of Filipendula vestita (Rosaceae). It is the first species of powdery mildew that causes wilting and ultimately death of apical infected leaves of F. vestita. It is described, illustrated and compared with other Podosphaera species reported on Rosaceae and a key to all species reported on Rosaceae is provided. The phylogeny of this species has been inferred from internal transcribed spacer (ITS) rDNA sequence data. Phylogenetically, P. filipendulensis is close to P. ferruginea var. ferruginea and P. macularis but differs in having larger chasmothecia, smaller peridium cells, shorter, narrower and aseptate appendages, 8-spored asci and smaller ascospores.

A new species of Podosphaera sect. Sphaerotheca subsect. Magnicellulatae from India and a key to all species reported on Fabaceae

Phytotaxa ◽  
2020 ◽  
Vol 453 (2) ◽  
pp. 108-120
Author(s):  
SANJAY YADAV ◽  
SANJEET KUMAR VERMA ◽  
RAGHVENDRA SINGH ◽  
VINAY KUMAR SINGH ◽  
PRAKASH KUSHWAHA
Keyword(s):  
New Species ◽  
Powdery Mildew ◽  
Characteristic Feature ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Large Subunit ◽  
Rdna Sequence ◽  
Sexual Morph ◽  
Rdna Sequence Data ◽  
A New Species

Podosphaera thermopsidicola, a new sexual morph form of powdery mildew was discovered on living leaves of Thermopsis barbata Benth. (Fabaceae). It is described, illustrated and compared with other Podosphaera species reported on Fabaceae. The phylogeny of this species has been inferred from partial nuclear ribosomal 28S large subunit (LSU) and internal transcribed spacer (ITS) rDNA sequence data. On the basis of LSU, P. thermopsidicola represents characteristic feature of Podosphaera s. str. Phylogenetically, P. thermopsidicola is closer to P. erigerontis-canadensis but differs in having larger chasmothecia, longer appendages, thick-walled asci, smaller oculi and smaller ascospores.

Morphology and phylogeny of a new species, Pseudocercospora haldinae (Mycosphaerellaceae) on Haldina cordifolia from India

Phytotaxa ◽  
2021 ◽  
Vol 501 (2) ◽  
pp. 281-292
Author(s):  
SANJAY YADAV ◽  
SANJEET KUMAR VERMA ◽  
VINAY KUMAR SINGH ◽  
RAGHVENDRA SINGH ◽  
ARCHANA SINGH ◽  
...  
Keyword(s):  
New Species ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Large Subunit ◽  
Closely Related Species ◽  
Host Genus ◽  
Rdna Sequence Data ◽  
Agar Media ◽  
Characteristic Features ◽  
A New Species

Pseudocercospora haldinae, a new anamorphic foliicolous hyphomycetous fungus discovered on living leaves of Haldina cordifolia (Rubiaceae) is taxonomically described and illustrated. This species is compared with closely related species of Pseudocercospora and other dematiaceous cercosporoid forms reported on the same host genus. The phylogeny of this species has been inferred from partial nuclear ribosomal 28S large subunit (LSU) and complete internal transcribed spacer (ITS) rDNA sequence data. On the basis of LSU, P. haldinae represents characteristic features of Pseudocercospora s. str. and did not form red crystals when cultivated on agar media.

Two new Terfezia species from Southern Europe

Phytotaxa ◽  
2015 ◽  
Vol 230 (3) ◽  
pp. 239 ◽  
Author(s):  
Juan Julián Bordallo ◽  
Antonio Rodríguez ◽  
Vasileios Kounas ◽  
Francisco Camello ◽  
Mario Honrubia ◽  
...  
Keyword(s):  
New Species ◽  
Host Plants ◽  
Sequence Data ◽  
Rdna Sequence ◽  
Its Rdna ◽  
Similar Species ◽  
Southern Europe ◽  
Phylogenetic Data ◽  
Rdna Sequence Data ◽  
Two New Species

Two new species of Terfezia, Terfezia grisea and Terfezia cistophila, are documented from Spain and Greece, based on morphology and ITS-rDNA sequence data. Macro and micro descriptions with illustrations and ITS phylogenetic data for the two species are provided, which are discussed in relation to similar species in this genus and their host plants.

scholarly journals Heterorhabditis noenieputensis n. sp. (Rhabditida: Heterorhabditidae), a new entomopathogenic nematode from South Africa

2012 ◽  
Vol 88 (2) ◽  
pp. 139-151 ◽  
Author(s):  
A.P. Malan ◽  
R. Knoetze ◽  
L. Tiedt
Keyword(s):  
South Africa ◽  
New Species ◽  
Internal Transcribed Spacer ◽  
Morphological Traits ◽  
Sequence Data ◽  
Entomopathogenic Nematode ◽  
The Body ◽  
Species Comparison ◽  
Citrus Orchard ◽  
A New Species

AbstractA new entomopathogenic nematode in the genus Heterorhabditis is described from South Africa, from two singular isolates found 1000 km from each other, from beneath a fig tree and in a citrus orchard, respectively. Morphological and molecular studies indicate both isolates to be the same and a new undescribed Heterorhabditis species. Comparison of sequences of the internal transcribed spacer (ITS) rDNA and the D2D3 region of the 28S rDNA gene with available sequences of other described species within the genus, indicate the two isolates as a new species. Phylogenetic analysis of the sequence data concerned placed the new species, H. noenieputensis n. sp., closest to H. indica and H. gerrardi in the indica-group. The new species, H. noenieputensis n. sp., is distinguished from other species in the genus by a combination of several morphological traits of the males and the infective juveniles (IJs). The new species differs from all other species previously described, as regards the body length of the IJs, except for H. indica and H. taysearae, in which the IJ is smaller. The IJ also differs from that of H. indica in the length of the oesophagus, the body diameter, the length of the tail and the E%. In addition, males of H. noenieputensis n. sp. differ from their closest relative, H. indica, in the position of the excretory pore, SW% and D%; and from H. gerrardi in the length of the oesophagus and SW%. The seventh pair of genital papillae of H. noenieputensis n. sp. are normally developed, while for H. indica they are often branched or swollen at the base, while 8 and 9 are usually absent in both species.

Amanita mansehraensis, a new species in section Vaginatae from Pakistan

Phytotaxa ◽  
2019 ◽  
Vol 409 (4) ◽  
pp. 189-201 ◽  
Author(s):  
MALKA SABA ◽  
DANNY HAELEWATERS ◽  
MUHAMMAD FIAZ ◽  
ABDUL NASIR KHALID ◽  
DONALD H. PFISTER
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Large Subunit ◽  
Pine Forests ◽  
Evolutionary Relationships ◽  
Internal Transcribed Spacer Region ◽  
Bayesian Inferences ◽  
A New Species

A new species of Amanita subgenus Amanita sect. Vaginatae is described and illustrated based on material collected in pine forests in district Mansehra, Khyber Pakhtoonkhaw, Pakistan. Amanita mansehraensis is recognized by the presence of a light brown or light greyish olive pileus with strong brown or deep brown pileus center; non-appendiculate, rimose, sulcate or plicate striate pileus margin; subglobose to ellipsoid basidiospores; and a saccate volva. The internal transcribed spacer region (ITS) and large subunit of the nuclear ribosomal RNA gene (nrLSU) were used for the delimitation of this species based on sequence data. The evolutionary relationships of A. mansehraensis with other species of Amanita were inferred by means of Maximum Likelihood and Bayesian inferences of the nrLSU dataset and concatenated ITS+nrLSU dataset. Amanita mansehraensis is most closely related to A. brunneofuliginea, A. pseudovaginata, and the recently described A. glarea.

A new entomopathogenic nematode, Steinernema colombiense n. sp. (Nematoda: Steinernematidae), from Colombia

Nematology ◽  
2008 ◽  
Vol 10 (4) ◽  
pp. 561-574 ◽  
Author(s):  
Juan Carlos López-Núñez ◽  
Kathryn Plichta ◽  
Carmenza E. Góngora-Botero ◽  
S. Patricia Stock
Keyword(s):  
Excretory Pore ◽  
Sequence Data ◽  
Entomopathogenic Nematode ◽  
Tail Length ◽  
Rdna Sequence ◽  
Its Rdna ◽  
Infective Juvenile ◽  
Diagnostic Features ◽  
Rdna Sequences ◽  
Rdna Sequence Data

Abstract A new entomopathogenic nematode, Steinernema colombiense n. sp., is described from Colombia. Morphological, molecular (28S and ITS rDNA sequence data) and cross-hybridisation studies were used for diagnostics and identification purposes. In addition, 28S and ITS rDNA sequence data were used to assess evolutionary relationships of the new species with other Steinernema spp. Morphological diagnostic features for S. colombiense n. sp. include morphometric features of the third-stage infective juvenile, including body length of 636 (549-732) μm, narrow body diam. (31 (22-36) μm), position of the excretory pore (35 (31-40) μm), tail length (41 (32-53) μm), D% = 29 (25-33) and E% = 205 (138-284). In addition, males of first and second generations are characterised by the morphology of the spicules and gubernaculum, the number and arrangement of the genital papillae and the excretory pore position (at 67 (56-76) and 54 (46-63) μm, for first and second generations, respectively). In addition to these traits, 28S and ITS rDNA sequences analyses both showed this species to be a distinct and unique entity.

Amanita mansehraensis, a new species in section Vaginatae from Pakistan

Phytotaxa ◽  
2019 ◽  
Vol 401 (3) ◽  
pp. 199
Author(s):  
MALKA SABA ◽  
DANNY HAELEWATERS ◽  
MUHAMMAD FIAZ ◽  
ABDUL NASIR KHALID ◽  
DONALD H. PFISTER
Keyword(s):  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Large Subunit ◽  
Pine Forests ◽  
Evolutionary Relationships ◽  
Internal Transcribed Spacer Region ◽  
Bayesian Inferences ◽  
A New Species

A new species of Amanita subgenus Amanita sect. Vaginatae is described and illustrated based on material collected in pine forests in district Mansehra, Khyber Pakhtoonkhaw, Pakistan. Amanita mansehraensis is recognized by the presence of a light brown or light greyish olive pileus with strong brown or deep brown pileus center; non-appendiculate, rimose, sulcate or plicate striate pileus margin; subglobose to ellipsoid basidiospores; and a saccate volva. The internal transcribed spacer region (ITS) and large subunit of the nuclear ribosomal RNA gene (nrLSU) were used for the delimitation of this species based on sequence data. The evolutionary relationships of A. mansehraensis with other species of Amanita were inferred by means of Maximum Likelihood and Bayesian inferences of the nrLSU dataset and concatenated ITS+nrLSU dataset. Amanita mansehraensis is most closely related to A. brunneofuliginea, A. pseudovaginata, and the recently described A. glarea.

scholarly journals Phallus haitangensis, a new species of stinkhorn from Yunnan Province, China

Phytotaxa ◽  
2016 ◽  
Vol 280 (2) ◽  
pp. 116 ◽  
Author(s):  
HUILI LI ◽  
XUELAN MA ◽  
PETER E. MORTIMER ◽  
SAMANTHA C. KARUNARATHNA ◽  
JIANCHU XU ◽  
...  
Keyword(s):  
New Species ◽  
Related Species ◽  
Internal Transcribed Spacer ◽  
Yunnan Province ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Its Sequence ◽  
Closely Related Species ◽  
Line Drawings ◽  
A New Species

Four specimens of Phallus were collected during surveys in a Pinus armandii forest in Baoshan, Yunnan Province, China. Macro- and micro-characteristics, together with Internal Transcribed Spacer (ITS) sequence data, showed that the four specimens belong to a new species, here named Phallus haitangensis. The ITS phylogenetic analyses, morphological descriptions, color photographs, and line drawings are provided, and compared with closely related species in the genus.

Pilea nonggangensis (Urticaceae), a new species from Guangxi, China

Phytotaxa ◽  
2017 ◽  
Vol 313 (1) ◽  
pp. 130 ◽  
Author(s):  
LONG-FEI FU ◽  
SHI-LIAN HUANG ◽  
ALEX K. MONRO ◽  
YING LIU ◽  
FANG WEN ◽  
...  
Keyword(s):  
New Species ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Species Conservation ◽  
Its Region ◽  
Systematic Position ◽  
Molecular Evidence ◽  
Conservation Assessment ◽  
Dna Sequence Data ◽  
A New Species

Pilea nonggangensis Y. G. Wei, L. F. Fu & A. K. Monro, a new species from Guangxi, China is described and illustrated. The new species is morphologically most similar to P. basicordata from which it differs by being dioecious, having peltate leaf blades, membranous stipules, paired inflorescences and larger bracts. Nuclear ribosomal internal transcribed spacer (ITS) region and plastid trnL-F intron spacer (trnL-F) DNA sequence data from the new species and 20 local congeneric species are used to resolve the systematic position of the new species within Pilea. Despite vastly different morphology the molecular evidence suggests that P. nonggangensis is most closely related to P. pseudonotata. A Global Species Conservation Assessment classifies P. nonggangensis as Vulnerable (VU).

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