Thermophilous fungi in Port Blair soils

1986 ◽  
Vol 64 (5) ◽  
pp. 1018-1026 ◽  
Author(s):  
S. Singh ◽  
D. K. Sandhu
Keyword(s):  
Dilution Method ◽  
Colony Forming Units ◽  
Thermophilic Species ◽  
Trichoderma Pseudokoningii ◽  
Sporotrichum Thermophile ◽  
Nicobar Islands ◽  
Ecological Importance ◽  
First Time ◽  
Temperature Responses ◽  
Soil Dilution

Soils were collected from eight different sites of saline marshy soils of Port Blair situated in the Andaman and Nicobar islands, India. A total of 93 333 colony-forming units representing 46 species of thermophilous fungi were isolated by the soil dilution method. The fungi were tabulated in order of ecological importance based on their frequency, relative density, and presence in the selected sites of this study. This is apparently the first study of these fungi from the Port Blair soils. Of the 46 species, Mucor miehei, Rhizopus oligosporus, Thermoascus crustaceous, T. thermophilus, and Trichoderma pseudokoningii are new records for India and Acremonium terricola, Aspergillus acculeatus, A. nidulans var. latus, and Sporotrichum thermophile are isolated from Indian soils for the first time. The temperature responses of the fungi revealed 14 microthermophiles and 22 thermotolerant and 10 true thermophilic species. Thirteen species of thermophilous fungi have been reported in addition to those already recorded in the literature.

scholarly journals A Study on Soil Thermophilic and Thermotolerant Fungi in Thamar-Yemen

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Salah M. Al-Bader , Adel Q. Aleryani , Aisha A. Almutaa
Keyword(s):  
Positive Result ◽  
Seasonal Fluctuation ◽  
Soil Samples ◽  
Dilution Method ◽  
Black And White ◽  
Thermotolerant Fungi ◽  
Colony Forming Units ◽  
Soil Dilution ◽  
Sterile Mycelium

Thirty-eight soil samples were collected from different sites in Thamar province during the period from 4/2012 to 2/2013.The direct plate, and dilution plates methods were followed to isolation of counting colony forming units, the potato carrot agar (PCA) and Emerson's media were used A total of 23 fungi belong to (14) genera were isolated, they include (11) Hyphomycetes, (10) Ascomycetes, and (2) Zygomycetes besides black and white sterile mycelium. A fourteen  isolates were regarded asnewly record for Yemeni mycobiota,they include Acremonium murorum, Acrophialophorafusispora, Chaetomiumatrobrunneum, C.gracile,C.strumarium, C.therophilevar.coprophpile, Corynascussepedonium ,Emericellarugulosa, Melanocarpusalbomyces, paecelomycesinflatus Papulosporathermophila, Rhizomucormiehi, Scytalidiumthermophilum, and Talromycesthermophilus Soil dilution method showed that the  colony forming units (CFUs)in soil had seasonal fluctuation , they were significantly  higher (36667)  during moderate/humid month than  cold/dry months (20400) (p<0.05), while the total similarity% is high between  fungal genera which were isolated during the two periods (78.57%) .A test of 15 isolates to produce cellulase, amylase, lipase, protease, xylanase and phenoloxidase showed a different activities in number of enzymes and levels of production. Corynascussepedonium, Eemericellanedulans and Malbrancheacinnamomea gave a positive result for all enzymes          

Cyathea gigantea (Wall. ex Hook.) Holttum, A New Record to Andaman & Nicobar Islands

2016 ◽  
Vol 39 (1) ◽  
pp. 77-78
Author(s):  
Bhupendra Kholia ◽  
Lal Singh ◽  
S. Srivastava
Keyword(s):  
New Record ◽  
Andaman And Nicobar Islands ◽  
Tree Fern ◽  
Recent Collection ◽  
Nicobar Islands ◽  
First Time

Based on the recent collection a tree fern Cyathea gigantea (Wall. ex Hook.) Holttum is reported here for the first time from Andaman and Nicobar Islands, India.

scholarly journals New Poly(Propylene Imine) Dendrimer Modified with Acridine and Its Cu(II) Complex: Synthesis, Characterization and Antimicrobial Activity

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3020 ◽  
Author(s):  
Paula Bosch ◽  
Desislava Staneva ◽  
Evgenia Vasileva-Tonkova ◽  
Petar Grozdanov ◽  
Ivanka Nikolova ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Copper Ions ◽  
Spectral Characteristics ◽  
Dilution Method ◽  
Pathogenic Microorganisms ◽  
Paramagnetic Resonance ◽  
Poly Propylene ◽  
New Compounds ◽  
First Time

A second-generation poly(propylene imine) dendrimer modified with acridine and its Cu(II) complex have been synthesized for the first time. It has been found that two copper ions form complexes with the nitrogen atoms of the dendrimeric core by coordinate bonds. The new compounds have been characterized by nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR), fourier-transform infrared spectroscopy (FTIR) and fluorescence spectroscopy. The spectral characteristics of the modified dendrimer have been measured in different organic solvents, and a negative fluorescence solvatochromism has been observed. The antimicrobial activity of the dendrimers has been tested against model pathogenic microorganisms in agar and by broth dilution method. The cotton fabric treated with both dendrimers has been evaluated towards pathogenic microorganisms. The obtained modified cotton fabrics have been shown to hamper bacterial growth and to prevent biofilm formation. Dendrimer cytotoxicity has been investigated in vitro in the model HEp-2 cell line.

Neotype designation and generic re-definition of the monotypic genus Dialeurotrachelus Takahashi (Hemiptera: Aleyrodidae), and first record of its occurrence in the Andaman and Nicobar Islands, India

Zootaxa ◽  
2019 ◽  
Vol 4695 (6) ◽  
pp. 568-576
Author(s):  
ANIL KUMAR DUBEY
Keyword(s):  
Type Species ◽  
First Record ◽  
Andaman And Nicobar Islands ◽  
Andaman Island ◽  
Camera Lucida ◽  
Nicobar Islands ◽  
Generic Description ◽  
Definition Of ◽  
First Time ◽  
Scanning Electron

Takahashi (1942) described Dialeurotrachelus cambodiensis, the type species of the monotypic whitefly genus, Dialeurotrachelus Takahashi from three syntype specimens collected on an unidentified tree in Cambodia, which were subsequently lost or destroyed. It was rediscovered after eight decades in the Indian territories of the Andaman and Nicobar Islands. A neotype is designated for D. cambodiensis Takahashi, from specimens collected on Diospyros kurzii Hiern (Ebenaceae) from Andaman Island, India. It is recorded for the first time from the Indian territories, Andaman and Nicobar Islands. Pupal morphology is assessed for redefining the generic description with differential diagnoses from related genera, and anomalies involved with structure of the vasiform orifice and associated structures are discussed. Illustrations are provided of the puparia in life, camera lucida drawings, slide mounts, and scanning electron photomicrographs. 

Thermophilous fungi of decomposing sugarcane bagasse

1980 ◽  
Vol 58 (18) ◽  
pp. 2015-2016 ◽  
Author(s):  
D. K. Sandhu ◽  
Surinder Singh ◽  
M. K. Waraich
Keyword(s):  
Aspergillus Fumigatus ◽  
Sugarcane Bagasse ◽  
New Record ◽  
Fungal Species ◽  
Northern India ◽  
First Time ◽  
Temperature Responses

Twenty species of thermophilous fungi were identified from sugarcane bagasse at Batala in Northern India. Seven fungal species are reported from bagasse for the first time and Aspergillus caespitosns is a new record for India. Aspergillus fumigatus was the most common fungus followed by Mncor pusillus. The temperature responses of the fungi revealed 5 microthermophiles, 11 thermotolerant, and 4 true thermophiles. Three species of thermophilous fungi are reported in addition to those already recorded in the literature.

Presence of Dosidicus gigas paralarvae (Cephalopoda: Ommastrephidae) in the central Gulf of California, Mexico related to oceanographic conditions

2010 ◽  
Vol 91 (4) ◽  
pp. 807-814 ◽  
Author(s):  
Susana Camarillo-Coop ◽  
César A. Salinas-Zavala ◽  
Marlenne Manzano-Sarabia ◽  
Eugenio Alberto Aragón-Noriega
Keyword(s):  
Gulf Of California ◽  
Mantle Length ◽  
Dosidicus Gigas ◽  
Potential Fecundity ◽  
San Pedro ◽  
Jumbo Squid ◽  
Ecological Importance ◽  
Santa Rosalia ◽  
First Time ◽  
The Relationship

The jumbo squid Dosidicus gigas is the only ommastrephid commercially caught in Mexico. Despite the economic and ecological importance of this species, little is known about its early life stages. The relationship between the presence of paralarvae and mesoscale oceanic features was investigated for the first time in the central Gulf of California, Mexico in February, April, June and September of 2008. A total of 86 paralarvae were found only in June and September (summer season), in the well-stratified column water where the thermocline was evident and warm sea surface waters (27.7° to 29.4°C) dominated. The greatest abundance of D. gigas paralarvae was observed within 2.23 to 3.48 km of the main front. The mantle length of the smallest paralarvae corresponded with the mantle length at hatching. The San Pedro Mártir Island–Santa Rosalia transect and Santa Rosalia–Guaymas transect were determined as the main hatching localities in June and September respectively. The number of paralarvae found in this study contrast with the potential fecundity of mature females which are found throughout the year.

scholarly journals Effects of post-emergent herbicides on Trichoderma harzianum , a potential biocontrol agent against Sclerotinia sclerotiorum in soybean cropping

2007 ◽  
Vol 55 (3) ◽  
pp. 355-362
Author(s):  
M. Rollán ◽  
C. Mónaco ◽  
G. Lampugnani ◽  
N. Arteta ◽  
D. Bayo ◽  
...  
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Trichoderma Harzianum ◽  
Mycelial Growth ◽  
Detrimental Effect ◽  
Biocontrol Agent ◽  
Selective Medium ◽  
Potential Biocontrol Agent ◽  
Colony Forming Units ◽  
Soil Dilution

Trichoderma harzianum is a potential biocontrol agent against Sclerotinia sclerotiorum in soybean. Information is needed on the compatibility of this biocontrol agent and the post-emergent herbicides used in soybean cropping.Haloxyfop R Methyl (EC 10.4%), Glyphosate (SL 48%), Imazamox (WG 70%) and Imazethapyr (SL 10%) were evaluated for their effects on the mycelial growth of T. harzianum on in vitro agar plates. Glyphosate (2000 ppm), Imazethapyr (500 and 250 ppm) and Haloxyfop R Methyl (1000, 500 and 100 ppm) reduced the mycelial growth of T. harzianum . Imazamox had no effect at any concentration.Subsequently, all the herbicides were assessed for their effect on soil populations of T. harzianum . Greenhouse assays conducted with non-sterile soil inoculated with T. harzianum and a specific herbicide were sampled before pesticide application and after 30 days. The number of colony forming units per gram of soil (c.f.u./g of soil) was evaluated with a soil dilution technique using Trichoderma selective medium (TSM). No detrimental effect was revealed.

scholarly journals Contamination Levels and Identification of Bacteria in Milk Sampled from Three Regions of Tanzania: Evidence from Literature and Laboratory Analyses

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
G. Msalya
Keyword(s):  
Bacterial Count ◽  
Total Coliform ◽  
Total Bacterial Count ◽  
Listeria Ivanovii ◽  
Integrated Research ◽  
Colony Forming Units ◽  
Identification Of Bacteria ◽  
Handling Practices ◽  
Contamination Levels ◽  
First Time

Milk in Tanzania has been reported to be contaminated with large number of bacteria. This is because (1) milk is obtained from animals with unknown health status, (2) good milking and handling practices are to a large extent not observed, and (3) marketing and distribution are done in informal channels. These factors are potential causes of milk-borne diseases and milk quality loss. The aim of this study was to assess nutritional risks in milk as reported in literature over a period of 20 years and through analyses of samples collected during the present study. The issues highlighted in literature were high bacteria and coliform counts exceeding standard levels in East Africa, prevalence of bacteria and drug residues in milk, and adulteration. Based on performed analyses, total bacterial count1.0×107colony forming units per millilitre (cfu/ml) and total coliform count1.1×107 cfu/ml, also greater than recommended levels, were found. Ten bacteria types were isolated from milk samples (five,Pseudomonas aeruginosa,Listeria monocytogenes,Listeria innocua,Listeria ivanovii, andKlebsiellaspp. are reported in Tanzanian for the first time). Two drugs tetracycline and sulphur were detected. Therefore, it is worth noting that integrated research is needed to evaluate the situation and address these challenges.

First report of contagious ecthyma (orf) outbreak in goats of Andaman and Nicobar Islands

2019 ◽  
Author(s):  
Jai Sunder ◽  
T. Sujatha ◽  
A. K. De ◽  
D. Bhattacharya ◽  
S. Bhowmick ◽  
...  
Keyword(s):  
Nested Pcr ◽  
Orf Virus ◽  
Contagious Ecthyma ◽  
Andaman And Nicobar Islands ◽  
Pcr Assay ◽  
Viral Dna ◽  
Livestock Population ◽  
South Andaman ◽  
Nicobar Islands ◽  
First Time

Goat constitutes almost 42.1 % of the total livestock population of the A and N islands. Generally the livestock are free from many dreaded diseases which are prevalent in mainland, India. However, in the present study the outbreak of contagious ecthyma (Orf) in goats of Andaman and Nicobar Islands was investigated and confirmed by PCR assay. The outbreak of orf was reported from different villages of the South Andaman. A total of 171 clinical cases of contagious ecthyma were reported during the different outbreak reported during the year 2017. The scab samples from the affected goats were collected and processed for extraction of viral DNA. Nested PCR assay was done by using the forward and reverse primers of parapox virus. The results revealed the confirmation of the outbreak of Contagious ecthyma (orf) virus in the goats of Andaman and Nicobar Islands for the first time.

scholarly journals Prevalence of ESBL, AmpC and Carbapenemase-Producing Enterobacterales Isolated from Raw Vegetables Retailed in Romania

Foods ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1726
Author(s):  
Ioana Alina Colosi ◽  
Alina Mihaela Baciu ◽  
Răzvan Vlad Opriș ◽  
Loredana Peca ◽  
Tristan Gudat ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
First Generation ◽  
Bacterial Load ◽  
Multiple Drug ◽  
Ionization Time ◽  
Flight Mass Spectrometry ◽  
Multiple Drug Resistant ◽  
Colony Forming Units ◽  
Pcr Multiplex ◽  
First Time

(1) Background: As β-lactamase-producing Enterobacterales are no longer exclusively associated with the health care system, investigating the potential risk they pose to the integrity of the environment and food safety has become of utmost importance. This study aimed to determine the prevalence of extended-spectrum β-lactamase (ESBL), AmpC, and carbapenemase-producing Enterobacterales isolates from retailed raw vegetables and to determine if household washing is an effective method of lowering bacterial load; (2) Methods: Seasonal vegetables (n = 165) were acquired from supermarkets (n = 2) and farmer markets (n = 2) in Romania. Following sample processing and isolation, identification of Enterobacterales was performed by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF). Polymerase chain reaction (PCR) multiplex was used to ascertain the presence of the main ESBL, AmpC, and Carbapenemase genes. Phenotypic antibiotic resistance profiles of isolates were determined by extended antibiograms. Enterobacteriaceae colony-forming units (CFU) counts were compared between vegetable types; (3) Results: Beta-lactamase producing bacteria were observed on 7.9% of vegetables, with 5.5% displaying ESBL/AmpC phenotype and 2.4% identified as Carbapenemase producers. The most frequently detected β-lactamase genes were blaSHV (n = 4), followed by blaCTX-M and blaTEM (each with n = 3). Phenotypic antibiotic resistance analysis showed that 46% of isolates were multiple drug resistant, with aminoglycosides (38.5%) the most prevalent non-β-lactam resistance, followed by first-generation quinolones (38.5%). (4) Conclusions: The present study has described for the first time the presence of β-lactamase producing Enterobacterales in fresh produce retailed in Romania.

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