Differentiation of Penicillium roqueforti from Closely Related Species Contaminating Cheeses and Dairy Environment

Fermentation ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 222
Author(s):  
Miloslava Kavková ◽  
Jaromír Cihlář ◽  
Vladimír Dráb ◽  
Ladislav Bár
Keyword(s):  
Related Species ◽  
Morphological Variability ◽  
The Other ◽  
Morphological Properties ◽  
Penicillium Roqueforti ◽  
Molecular Tools ◽  
Penicillium Species ◽  
Culture Collections ◽  
Closely Related Species

Currently, Penicillium roqueforti and the closely related P. carneum and P. paneum are identified based on their macromorphology, micromorphology, and molecular properties, the determination of which involves time-consuming procedures. Culture collections focused on dairy isolates of P. roqueforti require quick and efficient tools for routine applications to identify the (a) taxonomy affiliation and (b) morphological properties of strains that influence the sensory properties of blue-veined cheeses. Here, we assessed the morphological variability of P. roqueforti, P. carneum, P. paneum, and P.crustosum on artificial, Edam-like, and Roquefort-like media. Molecular tools were used to test P. roqueforti strains and clones effectively. A novel primer, PrsF, was tested for specificity within strains and isolates of P. roqueforti compared to P. carneum, P. paneum, and P. crustosum. The results reveal that PrsF was specific to the P. roqueforti samples and did not amplify the other tested Penicillium species. Identification based simultaneously on the specificity of the PrsF primer pair and cultivation of P. roqueforti strains on Roquefort-like medium represents an effective method for expanding the collections and practical use of P. roqueforti in the dairy industry.

Pimpinella ibradiensis (Apiaceae), an unusual new species from Turkey

Phytotaxa ◽  
2015 ◽  
Vol 217 (2) ◽  
pp. 164 ◽  
Author(s):  
İlker Çinbilgel ◽  
özkan Eren ◽  
Hayri Duman ◽  
Mustafa Gökceoğlu
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Related Species ◽  
Conservation Status ◽  
Identification Key ◽  
The Other ◽  
Site Conditions ◽  
Closely Related Species

Pimpinella ibradiensis, an unusual new species found in the Toka Yayla (İbradı, Antalya) in southern Anatolia, is described and illustrated. Site conditions, synecology and conservation status of P. ibradiensis are considered. In light of the comparison with the other closely related four species, namely P. nephrophylla, P. flabellifolia, P. sintenisii and P. paucidentata, its similarity within the genus are discussed. P. ibradiensis is easly distinguished from its relatives by its white petals, presence of bracts and bracteoles, larger fruits (4–5.5 × 1–2 mm), and having serrulate basal leaves with 60–95 strongly cartilaginous teeth along margins. The geographical distribution of P. ibradiensis and closely related species are mapped and the identification key of those species is updated.

scholarly journals Repeated evolution of asymmetric genitalia and right-sided mating behavior in theDrosophila nannopteraspecies group

2019 ◽  
Author(s):  
Andrea Acurio ◽  
Flor T. Rhebergen ◽  
Sarah Paulus ◽  
Virginie Courtier-Orgogozo ◽  
Michael Lang
Keyword(s):  
Related Species ◽  
Current Data ◽  
The Other ◽  
Genital Morphology ◽  
Closely Related Species ◽  
Outgroup Species ◽  
Repeated Evolution ◽  
Drosophila Pachea ◽  
Species Specific ◽  
Group Species

AbstractBackgroundMale genitals have repeatedly evolved left-right asymmetries, and the causes of such evolution remain unclear. TheDrosophila nannopteragroup contains four species, among which three exhibit left-right asymmetries of distinct genital organs. In the most studied species,Drosophila pachea, males display asymmetric genital lobes and they mate right-sided on top of the female. Copulation position of the other species is unknown.ResultsTo assess whether the evolution of genital asymmetry could be linked to the evolution of one-sided mating, we examined phallus morphology and copulation position inD. pacheaand closely related species. The phallus was found to be symmetric in all investigated species exceptD. pachea, which display an asymmetric phallus with a right-sided gonopore, andD. acanthoptera, which harbor an asymmetrically bent phallus. In all examined species, males were found to position themselves symmetrically on top of the female, except inD. pacheaandD. nannoptera, where males mated right-sided, in distinctive, species-specific positions. In addition, the copulation duration was found to be increased innannopteragroup species compared to closely related outgroup species.ConclusionOur study shows that gains, and possibly losses, of asymmetry in genital morphology and mating position have evolved repeatedly in thenannopteragroup. Current data does not allow us to conclude whether genital asymmetry has evolved in response to changes in mating position, or vice versa.

Supplementary description of three species from the subfamily Cecidophyinae (Eriophyoidea: Eriophyidae) from the Nalepa collection

2018 ◽  
Vol 23 (5) ◽  
pp. 838
Author(s):  
Slavica M. Marinković ◽  
Philipp E. Chetverikov ◽  
Christoph Hörweg ◽  
Radmila Petanović
Keyword(s):  
Natural History ◽  
Related Species ◽  
Host Plants ◽  
Morphological Variability ◽  
Natural History Museum ◽  
Closely Related Species ◽  
History Museum ◽  
Morphological Differences

Supplementary descriptions of three cecidophyine species based on topotype specimens recovered from vials from the Nalepa collection kept in the Natural History Museum (Vienna, Austria) are given: Cecidophyes galii (Karpelles 1884) from Asperula aparine M. Bieb. and Galium mollugo L. (Rubiaceae), Chrecidus ruebsaameni (Nalepa 1895) com. nov. (transferred from Cecidophyopsis) from Andromeda polifolia L. (Ericaceae) and Colomerus bucidae (Nalepa 1904) from Bucida buceras L. (Combretaceae). Observations on the morphological variability of Colomerus bucidae from different host plants are given. Morphological differences between two closely related species, Cecidophyes galii and Cecidophyes rouhollahi Craemer 1999 are discussed. 

scholarly journals Determination of the relatedness, ease of hybridization and gene exchange among members of the genus Capsicum in Nigeria

2020 ◽  
Vol 12 (3) ◽  
pp. 658-672
Author(s):  
Paul B. AHMODU ◽  
Joseph A. MORAKINYO ◽  
Catherine T. AHMODU
Keyword(s):  
Related Species ◽  
Maternal Inheritance ◽  
Interspecific Crosses ◽  
Gene Exchange ◽  
Closely Related Species ◽  
Partial Dominance ◽  
Leaf Density ◽  
Genus Capsicum ◽  
Flower Position

The fruit of Capsicum plants have a variety of names depending on place and type. This research was focused at studying the exchange of genes amongst members of the genus Capsicum in Nigeria. The process of interspecific and intervarietal hybridization of two (2) species of the genus Capsicum; C. annuum and C. frutasense were carried out and the results show that most of the studied attributes like arrangement of leaves, shape of leaves, leaf density were undetermined while majority with distinct changes follow maternal inheritance. There were less successes among the interspecific crosses and high successes between varietal crosses ranging from 19.5% to 2.4% for the inter-varietal cross and 9.3% to 2.4% for interspecific crosses. This indicates that there are more hybridization barriers among interspecific hybridization than inter-varietal hybridization. The closely related species and varieties had higher percentage success of hybridization and vice versa. Characters such as Hypocotyl colour had partial dominance. Erect flower position is dominant in W and hybrid T*W while pendant is recessive. Red fruit colour at maturity, green fruit stalk colour was dominant while yellow was recessive. A good knowledge of how related species of the genus Capsicum are, the easier it will enable researchers to hybridize and improve the genus.

A giant Permian fusulinid from east-central Alaska with comparisons of all giant fusulinids in western North America

1995 ◽  
Vol 69 (5) ◽  
pp. 805-812 ◽  
Author(s):  
Calvin H. Stevens
Keyword(s):  
North America ◽  
Related Species ◽  
The Other ◽  
Lower Permian ◽  
Early Permian ◽  
Western North America ◽  
Closely Related Species ◽  
East Central ◽  
West Texas ◽  
Species Groups

The discovery of a new locality yielding giant Guadalupian (Lower Permian) fusulinids in east-central Alaska extends the range of these forms much farther north than previously known, and into a tectonostratigraphic terrane from which they previously had not been reported. The number of areas from which giant parafusulinids are known in North America is thus raised to eight. Three of these localities are in rocks that previously had been referred to the allochthonous McCloud belt arc, and one, West Texas, is known to have been part of Paleozoic North America. Comparison of species from all areas suggests that there are two closely related species groups: one represented in Texas and Coahuila, and the other represented in Sonora, northern California, northeastern Washington, southern and northern British Columbia, Alaska, and apparently in Texas. These groups may differ because they are of slightly different ages or because interchange between the faunas of Texas–Coahuila area and the other regions was somewhat inhibited during the Early Permian.

scholarly journals A New Species of Ligyrocoris Stal With a Key to the Northeastern Species (Hemiptera:Lygaeidae)

1963 ◽  
Vol 70 (1) ◽  
pp. 17-21
Author(s):  
Merrill H. Sweet
Keyword(s):  
New Species ◽  
Life Cycle ◽  
New England ◽  
Related Species ◽  
Habitat Preferences ◽  
Life Cycles ◽  
The Other ◽  
Closely Related Species ◽  
Carex Stricta ◽  
A New Species

In the course of current work upon the biology and ecology of the Rhyparochrominae of New England, a new species of Ligyrocoris was discovered. The species runs in Barber's (1921) key to the couplet separating diffusus (Uhler) from sylvestris (L.), but is distinct from either species. While the new species is closely related to these species, it is also quite close to L. depictus which is separated out in a different part of Barber's key.These four closely related species are sympatric in New England, although they are markedly different in their overall distribution. The habitat preferences and life cycles of the species are quite different (Sweet, unpublished). The habitat of the new species described below is most unusual for the genus. The greater part of the type series was collected along the margin of a small pond where sedge clumps were standing in the water among occasional exposed rocks rather than in relatively dry fields or slope habitats where the other species occur. The species feeds upon the seeds of the sedge, Carex stricta Lam, and its life cycle is apparently adapted to that of the sedge, which fruits in late May and June. The insect becomes adult in mid-June and lays eggs until mid-July. The eggs remain in diapause over the summer and winter and hatch in May.

Systematics of the Adiantum philippense complex (Pteridaceae, Polypodiales) in Taiwan

Phytotaxa ◽  
2016 ◽  
Vol 263 (2) ◽  
pp. 113 ◽  
Author(s):  
LI-YAUNG KUO ◽  
TIAN-CHUAN HSU ◽  
YI-HAN CHANG ◽  
YAO-MOAN HUANG ◽  
WEN-LIANG CHIOU
Keyword(s):  
Cryptic Species ◽  
Related Species ◽  
Species Complex ◽  
The Other ◽  
Closely Related Species ◽  
Hybrid Combination ◽  
Reproductive Modes ◽  
Taxonomical Revision

Adiantum philippense s.l. is a member of once-pinnate Adiantum but comprise several cytotaxa with different ploidies and reproductive modes. According to the differences of cytotypes, the up-to-date revision had identified three subspecies under the A. philippense complex. In Taiwan, different ploidies and reproductive modes had also been found in this species complex, and existence of (a) cryptic species among these cytotypes had been suggested. The current study focuses on taxonomical revision of Taiwanese A. philippense complex. We sampled not only different Taiwanese cytotypes/populations but also all subspecies under A. philippense and the closely related species of them. By re-examining their phylogeny, ploidies, and reproductive modes, we confirmed that the sexual diploids in Taiwan belong to Adiantum menglianense, and this species is phylogenetically separated from A. philippense. We further approved that A. menglianense can be morphologically distinguished from A. philippense by their frond features and spore numbers in sporangia. Another taxon of Taiwanese A. philippense complex is A. philippense subsp. philippense, which is an apomictic and triploidy subspecies. Additionally, we assigned lectotypes of A. menglianense, and revised the hybrid combination of A. × meishanianum. We also provided a key in order to identify two taxa under Taiwanese A. philippense complex and the other once-pinnate Adiantum species in Taiwan.

A clarification of Medicago sinskiae

1991 ◽  
Vol 69 (1) ◽  
pp. 100-106 ◽  
Author(s):  
Ernest Small ◽  
Brenda Brookes
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
Related Species ◽  
The Other ◽  
Species Status ◽  
Closely Related Species

Little information has been available to justify the species status of the rare Turkmenian Medicago sinskiae Uljan. recognized by Uljanova in 1964. The holotype and plants raised from its seeds were examined, the chromosome number was determined, and a numerical taxonomic comparison was made of M. sinskiae and the other 12 species of Medicago section Spirocarpos subsection Pachyspirae. It was found that M. sinskiae is well separated from the most closely related species of Medicago and deserves recognition at the rank of species. Key words: Medicago sinskiae, Leguminoseae, alfalfa, taxonomy.

scholarly journals Scientific-methodological approach for standardization of herbal raw materials and herbal preparations using high-performance thin-layer chromatography procedure

2021 ◽  
pp. 76-89
Author(s):  
К. О. Хохлова
Keyword(s):  
Quality Control ◽  
Thin Layer ◽  
Related Species ◽  
High Performance ◽  
Raw Materials ◽  
Methodological Approach ◽  
Herbal Drugs ◽  
Closely Related Species ◽  
Layer Chromatography

The high-performance thin-layer chromatography (HPTLC) is widely used for quality control of herbal raw materials (HRM). The purpose of this work were to define the problematic issues of quality control of herbal drugs in Ukraine and to develop a systematic scientific and methodological approach for the standardization of HRM and herbal drugs using the modern analytical technique of HPTLC: to optimize the existing and develop new methods of identification and determination of adulterations, and to develop alternative methods of quantitative determination, as well as studying of the stability. As a result of a critical evaluation of existing approaches for the standardization of HRM and herbal drugs of Ukraine’s flora, numerous problematic issues were identified, including the existence of a limited number of national monographs / national parts of monographs on the HRM of the Ukraine’s flora, which were not previously standardized by other pharmacopeias; non-consideration of Ukraine’s flora species (non-pharmacopoeial) in monographs on closely related species that introduced in the State Pharmacopoeia of Ukraine; lack of specificity of combinations of physical and chemical methods used for quality control; lack of specificity and reproducibility, the labor intensity of methods; necessity of usage of toxic solvents and precursors; use of different groups of markers and methods for the HRM and its finished product or HRM and its closely related species, etc. The proposed systematic scientific and methodological approach includes: a preliminary collection of information about the object of study, markers/groups of bioactive substances, approaches to its standardization; theoretical evaluation of existing techniques of quality control in monographs on HRM and experimental approbation using samples of domestic plants, determination of the need for optimization of existed methods by the parallel development of specific, reproducible and documented methods for identification, adulterations’ detection, quantification, and bio-detection (if necessary) by HPTLC method. The approach is illustrated with examples. The proposed approach can be used for comprehensive HPTLC analysis of domestic HRM and herbal drugs for research, prevention of adulteration, standardization of initial HRM and its finished product, pharmaceutical development, and stability studies.

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