It is commonly well-known that biofilms are the predominant mode of bacterial growth, reflected in the clinic observations, where approximately 80% of all bacterial infections are related to biofilms. Bacteria in biofilms are well protected against environmental stresses, antibiotics, disinfectants and the host’s immune system and are usually extremely difficult to eradicate. Due to common problems caused by biofilms, alternative anti-biofilm strategies must be developed. Enterococcus strains are able to form complex surface-associated communities (biofilms), which contribute to its resistance and persistence in both host and non-host environments, and are especially important in food processing and clinical environments. Enterococcus biofilms showed increased antimicrobial resistance to the most of antibiotics as compared to the planktonic bacteria, which make them difficult to combat. There is an increasing evidence that biofilms are often associated with infectious diseases. Novel anti-biofilm strategies must be designed to include natural bio products instead of common antibiotics. Mushrooms are a nutritionally functional foods and a source of pharmaceuticals having functions such as antitumor, immunomodulating, antioxidant, cardiovascular, anti-hypercholesterolemia, antiviral, antibacterial, anti-parasitic, antifungal, detoxification, hepatoprotective, and antidiabetic. In addition, they have a notable activity against biofilms. In this study, the antimicrobial and anti-biofilm activities of some medicinal and edible mushrooms, namely Morchella angusticeps Peck, Ganoderma lucidum (Curtis) P. Karst., Cerioporus squamosus (Huds.) Quél., Trametes versicolor (L.) Lloyd and Lentinula edodes (Berk.) Singer were screened against multi drug resistant Enterococcus strains. As a result, it was observed that these mushrooms have notable potency to develop alternative medicines to struggle infectious diseases and biofilms.
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Macrofungi are good food resources, which have not only medicinal properties but are nutritive as well. For
centuries they have been used for preventing several diseases including cancer, hypercholesterolemia and
hypertension. They are also known to present antimicrobial activity, thus the aim of the present study is to put
forward antimicrobial activity of ethanol extract of Leucoagaricus leucothites (Vittad.) Wasser 1977, a macro
fungi and in addition to determine the chemical composition by Gas Chromatography-Mass Spectrometry.
Nineteen bacteria strains and one yeast strain are used in antimicrobial screening. According to the data obtained
from the study L. leucothites presented both antibacterial and antifungal activity against the bacteria and yeast
strains used at different concentrations with different levels. Although there are some previous studies, it can be
proposed that this study is the first detailed screening report regarding the antibacterial and antifungal potential
of L. leucothites and the compounds found in L. leucothites ethanol extract.Macrofungi are good food resources, which have not only medicinal properties but are nutritive as well. For
centuries they have been used for preventing several diseases including cancer, hypercholesterolemia and
hypertension. They are also known to present antimicrobial activity, thus the aim of the present study is to put
forward antimicrobial activity of ethanol extract of Leucoagaricus leucothites (Vittad.) Wasser 1977, a macro
fungi and in addition to determine the chemical composition by Gas Chromatography-Mass Spectrometry.
Nineteen bacteria strains and one yeast strain are used in antimicrobial screening. According to the data obtained
from the study L. leucothites presented both antibacterial and antifungal activity against the bacteria and yeast
strains used at different concentrations with different levels. Although there are some previous studies, it can be
proposed that this study is the first detailed screening report regarding the antibacterial and antifungal potential
of L. leucothites and the compounds found in L. leucothites ethanol extract.
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The purpose of this research was to identify Rustroemia samples from
Bolu province (Turkey) on June 22, 2019. The samples were identified
based on both conventional and molecular methods (ITS region of the
rDNA). By considering the high sequence similarity of the collected
samples (Akata 7020) with Rutstroemia elatina (Alb. & Schwein.)
Rehm, the relevant specimen was considered to be R. elatina and the
morphological data supported this finding. This species was firstly
reported from Turkey. The results of the molecular analysis and a
short description of the newly reported species along with its colored
images associated with macroscopic and microscopic structures were
conferred.
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Mushrooms are important natural resources in natural ecosystems.
They have been used for centuries as a means of food, medicine and
religious rituals for humans. In this study, total antioxidant status
(TAS), total oxidant status (TOS), oxidative stress index (OSI) and Cr,
Cu, Mn, Fe, Ni, Cd, Pb and Zn contents of edible mushroom Suillus
granulatus (L.) Roussel were determined. Mushroom samples were
collected from Hatay-Antakya (Turkey). Ethanol extracts of
mushroom samples were obtained. TAS, TOS and OSI values were
measured using Rel Assay kits. Cr, Cu, Mn, Fe, Ni, Cd, Pb and Zn
contents were determined by atomic absorption spectrophotometer. As
a result of the study, TAS value of S. granulatus was 3.143 ± 0.068
mmol/L, TOS value was 18.933 ± 0.195 µmol/L and OSI value was
0.603 ± 0.007. Cr content of S. granulatus was found to be high. As a
result, wild edible mushroom S. granulatus had antioxidant potential.
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The present study reports macrofungi specimens collected from
Şemdinli and Yüksekova districts (Hakkari) between 2014 and 2016.
As a result of field and laboratory studies, 197 species were identified.
Together with the previously reported six species, 203 species
belonging to two division, 48 families and 97 genera were listed from
the study area. Among them, 36 species belong to Ascomycota, and
167 to Basidiomycota.
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Deniz ALTUNTAŞ, Ertuğrul SESLİ, İlker BÜYÜK,
Ilgaz AKATA
Deniz ALTUNTAŞ, Ertuğrul SESLİ, İlker BÜYÜK,
Ilgaz AKATA
Aim of the study: The aim of the present study is to identify, characterize and record a new agaric for the first time from Turkey. Study area: It covers a total area of approximately 20 ha and is located in Ankara within the boundaries of Çankaya district. Material and method: Basidiomata were collected from Ankara University Tandoğan Campus on September 1, 2018. Macro- and micromorphological properties of basidiomata and nuclear ribosomal large subunit (nrLSU) sequences were used for identification. The voucher specimens were kept at Ankara University Herbarium (ANK). Main results: Based on the high sequence similarity between the new record (hereafter referred to as ‘Ank Akata & Altuntaş 167’) and Inocybe mytiliodora, the specimen was identified as I. mytiliodora. This result is also supported by the morphological data derived from the evaluation of macroscopic and ecological features of the fruiting bodies between ‘Ank Akata & Altuntaş 167' and closely related fungi. Research highlights: As a result, the basidiomata collected from Ankara University Tandoğan Campus represent ‘Inocybe mytiliodora’ and this is the first known record for Turkey.
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Mantar zehirlenmeleri, tüm dünyada sık karşılaşılan, türü ve toksinine göre asemptomatik
bulgulardan ölümcül organ yetmezliklerine kadar geniş klinik spektrumla seyreden bir sağlık
sorunudur. Zehirlenmeye yol açan mantarın toksini çoğunlukla tanımlanamadığından hedef organ
sistemi toksisite bulgularına göre sendromik sınıflandırma klinik yönetime fayda sağlayabilir. Diabetes
mellitus, koroner arter hastalığı, hipertansiyon ve hiperlipidemi gibi komorbiditeleri bulunan 64
yaşındaki kadın hasta yoğun bakım ünitesine kabul edildi. Yabani mantar yedikten yaklaşık 4 saat sonra
diyare, kas krampları, soğuk terleme, bulanık görme, öksürük, nefes almada güçlük şikayetlerinin
başladığını iletti. Solunum sistemi muayenesinde takipne, yaygın bilateral ronküs, bronkore ve hışıltılı
solunum saptandı. Normotansif ve bradikardikti (kalp hızı 35 atım/dakika). Glasgow Koma skoru 15
olan hastanın anksiyetesi vardı. Pupiller bilateral izokorik, miyotik ve ışık refleksleri azalmıştı. Arteriyel
kan gazında pH 7,26, parsiyel karbon dioksit basıncı 34 mmHg, potasyum 5,3 mmol/L, sodyum
130 mmol/L, laktat 5,3 mmol/L, bikarbonat 16 mEq/L, baz fazlalığı -10,3 mmol/L saptandı. Hedef
organ sistemi toksisite bulguları ve ortaya çıkış zamanlaması erken başlangıçlı kolinerjik sendromu
işaret ediyordu. İntravenöz atropin, sıvı, elektrolit, sodyum bikarbonat destek tedavileri toksisitenin
kısa sürede düzelmesini sağladı. Geç sonuçlanan mikolojik inceleme sonuçları, hastanın muskarin
içeren Inocybe lacera adlı mantar ile zehirlendiğini gösterdi. Bu olgu sunumu ile klinik yönetimde
faydalandığımız sendromik sınıflandırmayı literatürdeki güncel bilgiler ışığında özetlemek istedik
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