7,863 results match your criteria mating type

Spatial distribution of mycelia of the liana (L-) biotype of the agaric Crinipellis perniciosa (Stahel) Singer in tropical forest.

New Phytol 1994 Jun;127(2):243-259

Institute of Biological Sciences, University of Wales, Abervstwyth, Dyfed, SY23 3D A, Wales, UK.

A detailed investigation of the Liana biotype (L-biotype) of Crinipellis perniciosa (Stahel) Sing, was conducted in Ecuador. Basidiocarps of the L-biotype were consistently found in association with stems or debris of the liana Arrabidaea verrucosa (Standl) A. Gentry, although no symptoms associated with witches'broom disease, were observed. Read More

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Genetic variation of nitrate reductase activity in mono- and dikaryotic populations of the ectomycorrhizal fungus, Hebeloma cylindrosporum Romagnési.

New Phytol 1989 Nov;113(3):259-264

Université Claude Bernard Lyon I, URA CNRS 697 Ecologie microbienne, Bât. 405, 43 Boulevard du 11 Novembre, 69622 Villeurbanne CEDEX France.

Intraspecific variability in the activity of nitrate reductase (NR) has been studied in the ectomycorrhizal fungus Hebeloma cylindrosporum Romagnési at the interstrain and intrastrain levels, the latter within a population of 11 wild dikaryotic strains collected in'Les Landes'(SW France) at four locations less than 100 km away from one another. An attempt was made to determine whether variability within the monokaryotic and dikaryotic progeny of the HC1 fruiting strain could be used as a basis for an improvement programme involving breeding between selected monokaryons. The NR activity of the wild strains ranged from 201 to 700 nmol NO synthesized h mg fungal protein whilst that of 20 sib-monokaryons (5 per mating type) of the HCl strain varied from 51 to 510 nmol NO synthesized h mg fungal protein. Read More

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November 1989

Ectomycorrhizal ability of genetically different homokaryotic and dikaryotic mycelia of Hebeloma cylindrosporum.

New Phytol 1988 Mar;108(3):323-328

Laboratoire de Biologie des Ligneux, J.E. CNRS 034613, Université Nancy 1, B.P. 239, 54506 Vandoeuvre Cedex France.

Ectomycorrhizas were synthesized under axenic conditions between Pinus pinaster (Ait.) Sol. and different mycelial cultures of Hebeloma cylindrosporum Romagnesi. Read More

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Maternal overnutrition before and during pregnancy induces DNA damage in male offspring: A rabbit model.

Mutat Res 2021 May 5;865:503324. Epub 2021 Feb 5.

Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico. Electronic address:

Using a rabbit model, we investigated whether maternal intake of a high-fat and high-carbohydrate diet (HFCD) before and during pregnancy induces an increase in micronuclei frequency and oxidative stress in offspring during adulthood. Female rabbits received a standard diet (SD) or HFCD for two months before mating and during gestation. The offspring from both groups were nursed by foster mothers fed SD until postnatal day 35. Read More

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Close-range cues used by males of Polistes dominula in sex discrimination.

Naturwissenschaften 2021 Apr 17;108(3):15. Epub 2021 Apr 17.

Laboratory of Socioecology and Social Evolution, KU Leuven - University of Leuven, Leuven, Belgium.

Sexual pheromones are chemical molecules responsible for mediating sex recognition and mating events. Long- and close-range sexual pheromones act differently. The first type is released to attract potential partners, whereas the second coordinates the interactions after potential mating partners encounter each other. Read More

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Flower Development of Heterodichogamous (Juglandaceae).

Front Plant Sci 2021 30;12:541163. Epub 2021 Mar 30.

College of Forestry, Shenyang Agricultural University, Shenyang, China.

is a monoecious heterodichogamous species with protogynous and protandrous mating strategies that occur at a 1:1 ratio and are randomly distributed in the population. The inconsistent male and female flowering periods of the same mating type result in an imbalance of the ratio of male and female flowers, contributing to the low yield of this species. However, little more is known about its floral development. Read More

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Cannabidiol Induces Autophagy to Protects Neural Cells From Mitochondrial Dysfunction by Upregulating SIRT1 to Inhibits NF-κB and NOTCH Pathways.

Front Cell Neurosci 2021 30;15:654340. Epub 2021 Mar 30.

Medical School, Kunming University of Science and Technology, Kunming, China.

The protective effect of Cannabidiol on Parkinson's disease (PD) has been found in recent study. However, the specific mechanism of the protective effect of Cannabidiol on PD nerve damage require further exploration. This study aims to investigate effect of Cannabidiol on MMP-induced Neural Cells (SH-SY5Y) mitochondrial dysfunction. Read More

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Role of dietary modifications in the management of type 2 diabetic complications.

Pharmacol Res 2021 Apr 8;168:105602. Epub 2021 Apr 8.

Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai 400056, India. Electronic address:

Diabetes is a chronic metabolic disorder with a high rate of morbidity and mortality. Insufficient insulin secretion and insulin action are two major causes for the development of diabetes, which is characterized by a persistent increase in blood glucose level. Diet and sedentary life style play pivotal role in development of vascular complications in type 2 diabetes. Read More

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CcPmk1 is a regulator of pathogenicity in Cytospora chrysosperma and can be used as a potential target for disease control.

Mol Plant Pathol 2021 Apr 9. Epub 2021 Apr 9.

The Key Laboratory for Silviculture and Conservation of Ministry of Education, College of Forestry, Beijing Forestry University, Beijing, China.

Fus3/Kss1, also known as Pmk1 in several pathogenic fungi, is a component of the mitogen-activated protein kinase (MAPK) signalling pathway that functions as a regulator in fungal development, stress response, mating, and pathogenicity. Cytospora chrysosperma, a notorious woody plant-pathogenic fungus, causes canker disease in many species, and its Pmk1 homolog, CcPmk1, is required for fungal development and pathogenicity. However, the global regulation network of CcPmk1 is still unclear. Read More

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Lessons from the Nakaseomyces: mating-type switching, DSB repair and evolution of Ho.

Curr Genet 2021 Apr 8. Epub 2021 Apr 8.

GQE-Le Moulon, Université Paris-Saclay, INRAE, CNRS, AgroParisTech, Ferme du Moulon, 91190, Gif-sur-Yvette, France.

This short paper aims to review what our recent studies in the Nakaseomyces yeasts, principally Candida glabrata, reveal about the evolution of the mating-type switching system and its components, as well as about the repair of chromosomal double-strand breaks in this clade. In the model yeast Saccharomyces cerevisiae, the study of mating-type switching has, over the years, led to major discoveries in how cells process chromosomal breaks. Indeed, in this species, switching, which allows every haploid cell to produce cells of opposite mating types that can mate together, is initiated by the Ho endonuclease, linking sexual reproduction to a programmed chromosomal cut. Read More

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Establishment of heterochromatin in domain-size-dependent bursts.

Proc Natl Acad Sci U S A 2021 Apr;118(15)

Department of Biology, University of Copenhagen, Copenhagen 2200, Denmark

Methylation of histone H3K9 is a hallmark of epigenetic silencing in eukaryotes. Nucleosome modifications often rely on positive feedback where enzymes are recruited by modified nucleosomes. A combination of local and global feedbacks has been proposed to account for some dynamic properties of heterochromatin, but the range at which the global feedbacks operate and the exact mode of heterochromatin propagation are not known. Read More

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Review on Research Progress and Prospects of Cicada Flower, Isaria cicadae (Ascomycetes).

Int J Med Mushrooms 2021 ;23(4):81-91

Zhejiang BioAsia Institute of Life Sciences, Pinghu 314200, Zhejiang, People's Republic of China.

Cicada flower, Isaria cicadae Miq., has been a traditional Chinese medicine for approximately 1600 years. Many works on its identification, bioactivities, and clinical use against some disorders have been published, but some inaccuracies and inconsistencies need to be further clarified. Read More

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January 2021

sp. nov.: A New Species Causing Black Pod Disease on Cacao in Brazil.

Front Microbiol 2021 15;12:537399. Epub 2021 Mar 15.

Mars Plant Sciences Laboratory, Davis, CA, United States.

Black pod disease, caused by species, is among the main limiting factors of cacao ( L.) production. High incidence levels of black pod disease have been reported in Brazil, being induced by , , , and . Read More

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Regulation of mating and mating-type-specific genes in Zygosaccharomyces sp. yeast.

Yeast 2021 Apr 2. Epub 2021 Apr 2.

Department of Biotechnology, Maebashi Institute of Technology, Maebashi, Japan.

Zygosaccharomyces sp. is an industrially important yeast for the production traditional fermented foods in Japan. At present, however, there is no easy method for mating Zygosaccharomyces sp. Read More

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The Destructive Tree Pathogen Originates from the Laurosilva Forests of East Asia.

J Fungi (Basel) 2021 Mar 18;7(3). Epub 2021 Mar 18.

Forest Research, Alice Holt Lodge, Farnham GU10 4LH, Surrey, UK.

As global plant trade expands, tree disease epidemics caused by pathogen introductions are increasing. Since ca 2000, the introduced oomycete has caused devastating epidemics in Europe and North America, spreading as four ancient clonal lineages, each of a single mating type, suggesting different geographical origins. We surveyed laurosilva forests for around Fansipan mountain on the Vietnam-China border and on Shikoku and Kyushu islands, southwest Japan. Read More

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Do Females in a Unisexual-Bisexual Species Complex Differ in Their Behavioral Syndromes and Cortisol Production?

Biology (Basel) 2021 Mar 3;10(3). Epub 2021 Mar 3.

Population and Conservation Biology Group, Department of Biology, Texas State University, San Marcos, TX 78666, USA.

Studies of suites of correlated behavioral traits (i.e., behavioral syndromes) aid in understanding the adaptive importance of behavioral evolution. Read More

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Sex peptide receptor mediates the post-mating switch in Helicoverpa armigera (Lepidoptera: Noctuidae) female reproductive behavior.

Pest Manag Sci 2021 Apr 2. Epub 2021 Apr 2.

Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.

Background: In Drosophila, the sex peptide receptor (SPR) in females to detect male sex peptide (SP) and trigger changes in female behavior including mating rejection and oviposition. In moths, the SPR had been identified and investigated the limited function by using RNA interference (RNAi). However, the detailed function of SPR after a normal mating in moths, especially the role in female sexual receptivity, remains to be elucidated. Read More

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Comparative genomics of Chlamydomonas.

Plant Cell 2021 Feb 2. Epub 2021 Feb 2.

Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, EH9 3FL, Edinburgh, United Kingdom.

Despite its role as a reference organism in the plant sciences, the green alga Chlamydomonas reinhardtii entirely lacks genomic resources from closely related species. We present highly contiguous and well-annotated genome assemblies for three unicellular C. reinhardtii relatives: Chlamydomonas incerta, Chlamydomonas schloesseri, and the more distantly related Edaphochlamys debaryana. Read More

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February 2021

Signal-mediated localization of Candida albicans pheromone response pathway components.

G3 (Bethesda) 2021 Mar;11(3)

Department of Biology, Concordia University, Montreal, QC H4B 1R6, Canada.

 : A MAPK cascade consists of three kinases, (MEKK, MEK and MAPK), that are sequentially activated in response to a stimulus and serve to transmit signals. In C. albicans and in yeast, an MAPK cascade is linked to the pheromone pathway through a scaffold protein (Cst5 and Ste5, respectively). Read More

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First report that Colletotrichum aenigma causes leaf spots on Aquilaria sinensis in China.

Plant Dis 2021 Mar 29. Epub 2021 Mar 29.

Changsha, China;

Aquilaria sinensis (Lour.) Spreng, also known as eaglewood, belongs to the Thymelaeaceae family and has a considerably high medicinal value. It has been enlisted as the class II national key protective plant. Read More

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The transcription factor FvHmg1 negatively regulates fruiting body development in Winter Mushroom Flammulina velutipes.

Gene 2021 Mar 26;785:145618. Epub 2021 Mar 26.

Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China. Electronic address:

Fruiting body formation in Agaricomycetes represents the most complex and unclear process in the fungi. Mating type pathways (matA and matB) and transcription factors are important regulators in the process. Here, we report a new High-mobility-group (HMG) box domain protein FvHmg1 that acts as a negative transcription regulator in fruiting body development in Winter Mushroom Flammulina velutipes. Read More

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Genomic characteristics of mcr-1 and bla in a single multidrug-resistant Escherichia coli ST93 from chicken in China.

Poult Sci 2021 Feb 27;100(5):101074. Epub 2021 Feb 27.

College of Animal Medicine, Henan Agricultural University, Zhengzhou 450046, China. Electronic address:

This study was undertaken to discern the transmission characteristics of mcr-1 and bla in one multidrug-resistant Escherichia coli LWY24 from chicken in China. The genetic profiles of LWY24 isolate were determined by conjugation, S1-pulsed-field gel electrophoresis, southern blot hybridization, and whole genome sequencing analysis. Meanwhile, co-transfer of plasmids in LWY24 isolate was screened by dual conjugation assays. Read More

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February 2021

Morpho-molecular and mating-type locus diversity of Ustilaginoidea virens: an incitant of false smut of rice from Southern parts of India.

J Appl Microbiol 2021 Mar 26. Epub 2021 Mar 26.

University of Madras, Chennai, India.

Aims: To characterize the geo-distinct isolates of Ustilaginoidea virens for morpho-molecular and mating-type locus diversity.

Methods And Results: Sixty-one isolates of U. virens collected from Southern India exhibited significant diversity in mycelial width (3·45-5·50 µm), colony colour (yellow, pale yellow, and white), and growth pattern (thick leather mat, raised-fluffy, flat-fluffy, and raised). Read More

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The physiological reaction of Siberian hamsters (, Cricetidae) to chemical signals of perspective mating partners before and during courtship.

Biol Open 2021 Mar 26;10(3). Epub 2021 Mar 26.

Novosibirsk State Pedagogical University, Novosibirsk 6300126, Russia.

In this investigation we assessed the physiological reaction of hamsters in response to chemical signals from potential sexual partners, and also after a private meeting with them, which allowed us to ascertain the type of mating system for this species. The reception of olfactory signals led to an increase in peroxidase activity in the blood for both sexes, indicative of activity of a non-specific line of immune defense in recipients. The increase in blood cortisol level in response to the chemical signals of a partner was only observed in females. Read More

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Invasion and maintenance of meiotic drivers in populations of ascomycete fungi.

Evolution 2021 Mar 25. Epub 2021 Mar 25.

Department of Organismal Biology, Uppsala University, Sweden.

Meiotic drivers are selfish genetic elements that are able to become over-represented among the products of meiosis. This transmission advantage makes it possible for them to spread in a population even when they impose fitness costs on their host organisms. Whether a meiotic driver can invade a population, and subsequently reach fixation or coexist in a stable polymorphism, depends on the one hand on the biology of the host organism, including its life-cycle, mating system, and population structure, and on the other hand on the specific fitness effects of the driving allele on the host. Read More

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Transcriptome analyses of 7-day-old zebrafish larvae possessing a familial Alzheimer's disease-like mutation in psen1 indicate effects on oxidative phosphorylation, ECM and MCM functions, and iron homeostasis.

BMC Genomics 2021 Mar 24;22(1):211. Epub 2021 Mar 24.

Alzheimer's Disease Genetics Laboratory, School of Biological Sciences, University of Adelaide, North Terrace, Adelaide, SA, 5005, Australia.

Background: Early-onset familial Alzheimer's disease (EOfAD) is promoted by dominant mutations, enabling the study of Alzheimer's disease (AD) pathogenic mechanisms through generation of EOfAD-like mutations in animal models. In a previous study, we generated an EOfAD-like mutation, psen1, in zebrafish and performed transcriptome analysis comparing entire brains from 6-month-old wild type and heterozygous mutant fish. We identified predicted effects on mitochondrial function and endolysosomal acidification. Read More

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Simultaneous Ablation of the Catalytic AMPK α-Subunit SNF1 and Mitochondrial Matrix Protease CLPP Results in Pronounced Lifespan Extension.

Front Cell Dev Biol 2021 4;9:616520. Epub 2021 Mar 4.

Institute of Molecular Biosciences, J.W. Goethe University, Frankfurt am Main, Germany.

Organismic aging is known to be controlled by genetic and environmental traits. Pathways involved in the control of cellular metabolism play a crucial role. Previously, we identified a role of PaCLPP, a mitochondrial matrix protease, in the control of the mitochondrial energy metabolism, aging, and lifespan of the fungal aging model . Read More

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A Conserved Class II Type Thioester Domain-Containing Adhesin Is Required for Efficient Conjugation in Bacillus subtilis.

mBio 2021 03 16;12(2). Epub 2021 Mar 16.

Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma, Madrid, Spain

Conjugation, the process by which a DNA element is transferred from a donor to a recipient cell, is the main horizontal gene transfer route responsible for the spread of antibiotic resistance and virulence genes. Contact between a donor and a recipient cell is a prerequisite for conjugation, because conjugative DNA is transferred into the recipient via a channel connecting the two cells. Conjugative elements encode proteins dedicated to facilitating the recognition and attachment to recipient cells, also known as mating pair formation. Read More

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The Plasmid-Borne (A) Gene Is an Important Factor Causing Tigecycline Resistance in ST11 Carbapenem-Resistant Under Selective Pressure.

Front Microbiol 2021 24;12:644949. Epub 2021 Feb 24.

Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.

The emergence and prevalence of tigecycline-resistant have seriously compromised the effectiveness of antimicrobial agents in the treatment of infections. To explore the role of the plasmid-borne (A) gene in tigecycline resistance in carbapenem-resistant (CRKP), a total of 63 CRKP isolates were collected from a tertiary hospital in Hangzhou, China. The minimum inhibitory concentration (MIC) of tigecycline, mutation rate of (A) gene, genetic surroundings of (A)-carrying transmissible plasmid and the contribution of (A) mutation to tigecycline resistance were analyzed using antimicrobial susceptibility test, whole-genome sequencing, tigecycline resistance evolution experiment, and plasmid conjugation experiment. Read More

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February 2021

Behavioural response to songs between genetically diverged allopatric populations of Darwin's small tree finch in the Galápagos.

J Evol Biol 2021 Mar 13. Epub 2021 Mar 13.

College of Science and Engineering, Flinders University, Adelaide, South Australia, Australia.

Empirical data that identify contemporary mechanisms of divergence shed light on how species could multiply. In this study, we measured population genetic structure, song syllable diversity and response to simulated intruder song in Darwin's small tree finch (Camarhynchus parvulus) on Santa Cruz and Floreana Islands, Galápagos archipelago. Our aim was to test whether the magnitude of contemporary behavioural response in resident birds was consistent with patterns of genetic or cultural differences between populations. Read More

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