Rapid identification of marine algae (Raphidophyceae) using three-primer PCR amplification of nuclear internal transcribed spacer (ITS) regions from fresh and archived material

Phycologia ◽  
2002 ◽  
Vol 41 (1) ◽  
pp. 15-21 ◽  
Author(s):  
Laurie Connell
Keyword(s):  
Internal Transcribed Spacer ◽  
Marine Algae ◽  
Pcr Amplification ◽  
Rapid Identification ◽  
Its Regions

Amplifying and Sequencing Analysis the Internal Transcribed Spacer (ITS) Regions of Olpidium Viciae Kusano’s Ribosomal DNA in Broad Bean

2011 ◽  
Vol 271-273 ◽  
pp. 507-513 ◽  
Author(s):  
Ji Ming Yan ◽  
Xiao Hong Shi ◽  
Miao Mei ◽  
Hong Bo Dai ◽  
Hua Zhi Ye
Keyword(s):  
Internal Transcribed Spacer ◽  
Broad Bean ◽  
Its Region ◽  
Rapid Identification ◽  
Sequencing Analysis ◽  
Dna Extraction Method ◽  
Its Gene ◽  
Its Regions ◽  
Polymerase Chain ◽  
Dna Template

Plasmodiophora fire of broad bean is responsible for Olpidium Viciae Kusano, which is a kind of Fungi subdivided into bacteria flagellum amon. We have developed a polymerase chain reaction based method for the rapid identification internal transcribed spacer (ITS) regions of productionally significant fungi Olpidium Viciae Kusano from areas of 2500~3000 metres above sea level. Sequences of the nuclear internal transcribed spacer (ITS) regions ITS1 and ITS4 have been used widely in molecular characteristic studies because of their relatively high variability and facility of amplification. A universal quickly SDS micro-DNA extraction method was used combining a RNaseA pretreatment step to remove PCR interferential RNA. Target sequences in ITS regions genomic were amplified by PCR and sequenced. Using Hanpanchun lesion and healthy bean leaves as template and ITS1, ITS4 as primer to amplify ITS region, the results revealed ITS gene of broad bean genome could be amplified with size of 750bp from healthy leaves, it could be amplified two fragments of 750bp and 500bp from the DNA template extracted from Hanpanchun lesion tissue. The ITS sequence of Olpidium Viciae Kusano is 99% homoeology with Cercospora (grey speck) pathogen. This may lay the foundation for research about classification and analyze evolutionary relationships of Olpidium Viciae Kusano.

PCR Detection of Alternaria spp. in Processed Foods, Based on the Internal Transcribed Spacer Genetic Marker

2011 ◽  
Vol 74 (2) ◽  
pp. 240-247 ◽  
Author(s):  
MIGUELÁNGEL PAVÓN ◽  
ISABEL GONZÁLEZ ◽  
MARÍA ROJAS ◽  
NICOLETTE PEGELS ◽  
ROSARIO MARTÍN ◽  
...  
Keyword(s):  
Food Processing ◽  
Internal Transcribed Spacer ◽  
Rapid Identification ◽  
Food Samples ◽  
Pcr Analysis ◽  
Infant Food ◽  
Rrna Gene ◽  
Tomato Pulp ◽  
Pcr Method ◽  
Fungal Contaminants

The genus Alternaria is considered one of the most important fungal contaminants of vegetables, fruits, and cereals, producing several mycotoxins that can withstand food processing methods. Conventional methods for Alternaria identification and enumeration are laborious and time-consuming, and they might not detect toxigenic molds inactivated by food processing. In this study, a PCR method has been developed for the rapid identification of Alternaria spp. DNA in foodstuffs, based on oligonucleotide primers targeting the internal transcribed spacer (ITS) 1 and ITS2 regions of the rRNA gene. The specificity of the Alternaria-specific primer pair designed (Dir1ITSAlt–Inv1ITSAlt) was verified by PCR analysis of DNA from various Alternaria spp., and also from several fungal, bacterial, yeast, animal, and plant species. The detection limit of the method was 102 CFU/ml in viable culture, heated culture, or experimentally inoculated tomato pulp. The applicability of the method for detection of Alternaria spp. DNA in foodstuffs was assessed by testing several commercial samples. Alternaria DNA was detected in 100% of spoiled tomato samples, 8% of tomato products, and 36.4% of cereal-based infant food samples analyzed.

ISSR-Derived Species-Specific SCAR Marker for Rapid and Accurate Authentication of Ocimum tenuiflorum L.

Planta Medica ◽  
2017 ◽  
Vol 84 (02) ◽  
pp. 117-122 ◽  
Author(s):  
Amit Kumar ◽  
Vereena Rodrigues ◽  
Priyanka Mishra ◽  
Kuppusamy Baskaran ◽  
Ashutosh Shukla ◽  
...  
Keyword(s):  
Pcr Amplification ◽  
High Volume ◽  
Inter Simple Sequence Repeat ◽  
Rapid Identification ◽  
Medicinal Species ◽  
Accurate Identification ◽  
Sequence Characterized Amplified Region ◽  
Medicinal Value ◽  
Ocimum Tenuiflorum ◽  
Species Specific

Abstract Ocimum tenuiflorum has been widely used in traditional medicine and has high medicinal value. High volume trade of this potential medicinal plant species led to unscrupulous adulteration of both crude drugs as well as formulations. Morphology-based authentication is difficult in cases of incomplete or damaged samples and in dried herbal materials. In such cases, PCR-based molecular methods may aid in accurate identification. The present study aimed at developing species-specific DNA marker(s) for the authentication of O. tenuiflorum. A species-specific amplicon (279 bp) generated through an inter-simple sequence repeat marker (UBC 835) in all individuals of O. tenuiflorum was cloned, sequenced, and a primer pair was developed (designated as CIM-OT-835F/CIM-OT-835R). The newly developed sequence characterized amplified region marker was validated through PCR amplification in all available seven species of Ocimum, and its specificity for O. tenuiflorum was confirmed with the consistent generation of an amplicon of 177 bp. The developed marker can be used for accurate and rapid identification of the species for certification purposes and will be useful in quality control of medicinal preparations containing this important medicinal species.

scholarly journals Rapid Identification ofHelicoverpa armigeraandHelicoverpa zea(Lepidoptera: Noctuidae) Using Ribosomal RNA Internal Transcribed Spacer 1

2015 ◽  
Vol 15 (1) ◽  
pp. 155 ◽  
Author(s):  
Omaththage P. Perera ◽  
Kerry C. Allen ◽  
Devendra Jain ◽  
Matthew Purcell ◽  
Nathan S. Little ◽  
...  
Keyword(s):  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Rapid Identification ◽  
Lepidoptera Noctuidae

Rapid identification of HLA-DRw53-positive samples by a generic DRB-PCR amplification without further analysis

1992 ◽  
Vol 40 (1) ◽  
pp. 41-44 ◽  
Author(s):  
Juan J. Yunis ◽  
Maria B. Delgado ◽  
Elizabeth Lee-Lewandroski ◽  
Edmond J. Yunis ◽  
David H. Bing
Keyword(s):  
Pcr Amplification ◽  
Rapid Identification

Ceriporia albomellea (Phanerochaetaceae, Basidiomycota), a new species from tropical China based on morphological and molecular evidences

Phytotaxa ◽  
2017 ◽  
Vol 298 (1) ◽  
pp. 20 ◽  
Author(s):  
YUAN YUAN ◽  
XIAO-HONG JI ◽  
FANG WU ◽  
JIA-JIA CHEN
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Ribosomal Rna ◽  
Internal Transcribed Spacer ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Evidence ◽  
Its Regions ◽  
Tropical China ◽  
A New Species

A new polypore, Ceriporia albomellea, collected from tropical China, is described and illustrated based on morphological characteristics and molecular evidence. It is characterized by thin, resupinate basidiome with a white subiculum, cottony margin, white to cinnamon-buff pores, clavate cystidia and oblong-ellipsoid basidiospores measured as 3.1–3.8 × 1.7–2 µm. Phylogenetic analysis based on the internal transcribed spacer (ITS) regions and nuclear large subunit (nLSU) ribosomal RNA gene regions supported C. albomellea as a distinctive species belonging to Ceriporia.

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