scholarly journals New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 1

2020 ◽  
Vol 44 (1) ◽  
pp. 81-87
Author(s):  
Marko Sabovljevic ◽  
Gordana Tomovic ◽  
Marjan Niketic ◽  
Predrag Lazarevic ◽  
Maja Lazarevic ◽  
...  
Keyword(s):  
New Records ◽  
Pathogenic Fungus ◽  
Calluna Vulgaris ◽  
Significant Data

The present paper gives new records of the following taxa in SE Europe and adjacent regions, together with significant data pertaining to them: the pathogenic fungus Arthrocladiella mougeotii; the liverwort Riccia frostii; the mosses Campylopus fragilis, C. introflexus and Tomentypnum nitens; the fern Allosorus persicus; the monocots Allium atropurpureum and Sisyrinchium montanum; and the dicots Calluna vulgaris and Santolina chamaecyparissus.

scholarly journals New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 4

2021 ◽  
Vol 45 (1) ◽  
pp. 129-136
Author(s):  
Gordana Tomovic ◽  
Marko Sabovljevic ◽  
Teodor Denchev ◽  
Cvetomir Denchev ◽  
Marjan Niketic ◽  
...  
Keyword(s):  
New Records ◽  
Calluna Vulgaris ◽  
Parasitic Fungus ◽  
Equisetum Hyemale ◽  
Mahonia Aquifolium ◽  
Epipactis Helleborine ◽  
Schoenus Nigricans

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: diatom alga Stauroneis neofossilis, parasitic fungus Anthracoidea arenariae, horsetail Equisetum hyemale, liverwort Harpanthus flotovianus, mosses Fissidens exilis and Rhizomnium punctatum, monocots Epipactis helleborine subsp. orbicularis, Himantoglossum calcaratum subsp. rumelicum and Schoenus nigricans and dicots Calluna vulgaris, Mahonia aquifolium and Willemetia stipitata subsp. albanica.

scholarly journals Plectological and molecular identification of economically important wild Russulales mushrooms from Pakistan and their antifungal potential against food pathogenic fungus Aspergillus niger

2020 ◽  
Vol 27 (1) ◽  
pp. 67-77
Author(s):  
Samina Sarwar ◽  
Tanzeela Aziz ◽  
Muhammad Hanif ◽  
Sobia Ilyas ◽  
Malka Saba ◽  
...  
Keyword(s):  
Aspergillus Niger ◽  
Antifungal Agents ◽  
New Records ◽  
Pathogenic Fungus ◽  
Major Objective ◽  
Maximum Inhibition ◽  
Antifungal Potential ◽  
Plant Taxon ◽  
First Time ◽  
Fungus Growth

Present study deals with the plectological and molecular analysis as well as use of economically important wild Russuloid mushrooms against food pathogenic fungus Aspergillus niger. Three different species of mushrooms viz., Russla laeta, R. nobilis, and R. nigricans were collected and identified from Himalayan range of Pakistan and are found as new records for this country. Major objective of this study was to highlight the importance of these wild creatures as antifungal agents against A. niger. For this purpose methanolic extract of selected mushrooms of different concentration levels viz., 1, 1.5, 2 and 3% were used. This activity is also first time reported from Pakistan by using this group of mushrooms. Results showed that all tested mushrooms exhibit growth inhibition of A. niger and can be used as biocontrol agents. R. nigricans showed maximum inhibition of fungus growth that is 62% at 3% concentrations while minimum inhibition was observed in R. nobilis at same concentration that is 43.6%. Bangladesh J. Plant Taxon. 27(1): 67-77, 2020 (June)

High-pressure freezing and freeze substitution of teliospores of the rust fungus Gymnosporangium clavipes

1990 ◽  
Vol 48 (3) ◽  
pp. 692-693
Author(s):  
Robert W. Roberson
Keyword(s):  
High Pressure ◽  
Room Temperature ◽  
Pathogenic Fungus ◽  
Rust Fungus ◽  
Freeze Substitution ◽  
Ice Crystals ◽  
High Pressure Freezing ◽  
Thin Walled Structures ◽  
Cytological Changes ◽  
Dextran Solution

The use of cryo-techniques for the preparation of biological specimens in electron microscopy has led to superior preservation of ultrastructural detail. Although these techniques have obvious advantages, a critical limitation is that only 10-40 μm thick cells and tissue layers can be frozen without the formation of distorting ice crystals. However, thicker samples (600 μm) may be frozen well by rapid freezing under high-pressure (2,100 bar). To date, most work using cryo-techniques on fungi have been confined to examining small, thin-walled structures. High-pressure freezing and freeze substitution are used here to analysis pre-germination stages of specialized, sexual spores (teliospores) of the plant pathogenic fungus Gymnosporangium clavipes C & P.Dormant teliospores were incubated in drops of water at room temperature (25°C) to break dormancy and stimulate germination. Spores were collected at approximately 30 min intervals after hydration so that early cytological changes associated with spore germination could be monitored. Prior to high-pressure freezing, the samples were incubated for 5-10 min in a 20% dextran solution for added cryoprotection during freezing. Forty to 50 spores were placed in specimen cups and holders and immediately frozen at high pressure using the Balzers HPM 010 apparatus.

Antimalarials from an unidentified plant pathogenic fungus isolated from Torreya taxifolia

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
M Kumarihamy ◽  
S Khan ◽  
D Ferreira ◽  
E Croom Jr ◽  
S Duke ◽  
...  
Keyword(s):  
Pathogenic Fungus ◽  
Plant Pathogenic Fungus

IPOMOEA LITTORALIS AND IPOMOEA CAPITELLATA VAR. MULTILOBATA : NEW RECORDS FOR UPPER GANGETIC PLAINS OF INDIA

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
JASWINDER KAUR ◽  
SATYA NARAIN
Keyword(s):  
New Records ◽  
Critical Examination ◽  
Type Specimens ◽  
Gangetic Plains

The floristic exploration and critical examination of specimens collected of family Convolvulaceae from Upper Gangetic Plains of India, resulted in addition of 2 new records for the flora viz. Ipomoea littoralis and Ipomoea capitellata var. multilobata. Detailed description, phenology, ecology, distribution, locality, field number, type specimens examined, illustrations and other relevant notes are provided.

Search for Compounds Suppressing Intestinal α-Glucosidase Expression in Caco-2 Cells

2019 ◽  
Vol 2 (2) ◽  
pp. 96-101
Author(s):  
Kota Noda ◽  
Eisuke Kato ◽  
Jun Kawabata
Keyword(s):  
Blood Glucose ◽  
Intestinal Tract ◽  
Cell Model ◽  
Epigallocatechin Gallate ◽  
Calluna Vulgaris ◽  
Active Principle ◽  
Intestinal Epithelial ◽  
Mrna Expression Level ◽  
Epicatechin Gallate ◽  
Control Post

Diabetes is a chronic disease characterized by elevated blood glucose level.Reducing carbohydrate absorption from the intestinal tract is an effective strategy to control post-meal blood glucose level. Inhibition of intestinal α-glucosidase, involved in digestion of carbohydrates, is known as an approach to accomplish this. On the other hand, reduction of α-glucosidase amount is expected to work in the similar manner. However, none of the previousstudy pursues this approach. A convenient assay was developed to evaluate α-glucosidase amount employing Caco-2 cells, the intestinal epithelial cell model reported to express α-glucosidase. Sixty plants were screened and two candidate plants, Calluna vulgaris and Perilla frutescens var. crispa were found to reduce α-glucosidase expression. C. vulgaris extract was subjected to activity guided isolation. Proanthocyanidin was identified as the active principle which was analyzed by thiol decomposition to reveal the components as a mixture ofcatechin, epicatechin, epigallocatechin, and A type procyanidin dimer. The proanthocyanidin suppressed about 30% of α-glucosidase amount evaluated through convenient assay, and suppressed bulk of mRNA expression level of sucrase-isomaltase (SI) at 0.125 mg/mL. Several flavan-3-ol monomers were also tested, and epicatechin gallate and epigallocatechin gallate were found to suppress α-glucosidase amount significantly.

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