Search results: 26,001 results (approx.)

1. The private life of malaria parasites: strategies for sexual reproduction.

Malaria parasites exhibit a complex lifecycle, requiring extensive asexual replication in the liver and blood of the vertebrate host, and in the haemocoel of the insect vector. Yet, they must also undergo a single round of sexual reproduction, which occurs in the vector's midgut upon uptake of a...

Author(s) : Schneider, P.; Reece, S. E.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Molecular and Biochemical Parasitology 2021 Vol.244

2. Plasmodium falciparum goes bananas for sex.

The sexual blood stages of the human malaria parasite Plasmodium falciparum undergo a remarkable transformation from a roughly spherical shape to an elongated crescent or "falciform" morphology from which the species gets its name. In this review, the molecular events that drive this spectacular...

Author(s) : Dixon, M. W. A.; Tilley, L.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Molecular and Biochemical Parasitology 2021 Vol.244

3. Modeling the ethanol tolerance of the probiotic yeast Saccharomyces cerevisiae var. boulardii CNCM I-745 for its possible use in a functional beer.

Saccharomyces yeasts are able to ferment simple sugars to generate levels of ethanol that are toxic to other yeasts and bacteria. The tolerance to ethanol of different yeasts depends also on the incubation temperature. In this study, the ethanol stress responses of S. cerevisiae and the probiotic...

Author(s) : Ramírez-Cota, G. Y.; López-Villegas, E. O.; Jiménez-Aparicio, A. R.; Hernández-Sánchez, H.

Publisher : Springer, New York, USA

Journal article : Probiotics and Antimicrobial Proteins 2021 Vol.13 No.1 pp.187-194 ref.38

4. Ultrastructural changes of the mitochondrion during the life cycle of Trypanosomabrucei.

The mitochondrion is crucial for ATP generation by oxidative phosphorylation, among other processes. Cristae are invaginations of the mitochondrial inner membrane that house nearly all the macromolecular complexes that perform oxidative phosphorylation. The unicellular parasite Trypanosoma brucei...

Author(s) : Bílý, T.; Sheikh, S.; Mallet, A.; Bastin, P.; Pérez-Morga, D.; Lukeš, J.; Hashimi, H.

Publisher : Wiley, Boston, USA

Journal article : Journal of Eukaryotic Microbiology 2021 Vol.68 No.3

5. Minimal nutrient requirements for induction of germination of Aspergillus niger conidia.

Aspergillus niger reproduces asexually by forming conidia . Here, the minimal nutrient requirements were studied that activate germination of A. niger conidia. To this end, germination was monitored in time using an oCelloScope imager. Data was used as input in an asymmetric model to describe the...

Author(s) : Ijadpanahsaravi, M.; Punt, M.; Wösten, H. A. B.; Teertstra, W. R.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Fungal Biology 2021 Vol.125 No.3 pp.231-238 ref.29

6. Phytochrome mediated responses in Agrobacterium fabrum: growth, motility and plant infection.

The soil bacterium and plant pathogen Agrobacterium fabrum C58 has two phytochrome photoreceptors, Agp1 and Agp2. We found that plant infection and tumor induction by A. fabrum is down-regulated by light and that phytochrome knockout mutants of A. fabrum have diminished infection rates. The...

Author(s) : Xue Peng; Bai YingNan; Rottwinkel, G.; Averbukh, E.; Ma YuanYuan; Roeder, T.; Scheerer, P.; Krauß, N.; Lamparter, T.

Publisher : Springer, New York, USA

Journal article : Current Microbiology 2021 Vol.78 No.7 pp.2708-2719 ref.39

7. Unveiling the functions of the VosA-VelB target gene vidD in Aspergillus nidulans.

The velvet regulators VosA and VelB are primarily involved in spore maturation and dormancy. Previous studies found that the VosA-VelB hetero-complex coordinates certain target genes that are related to fungal differentiation and conidial maturation in Aspergillus nidulans. Here, we characterized...

Author(s) : Son YeEun; Park HeeSoo

Publisher : Taylor & Francis, Abingdon, UK

Journal article : Mycobiology 2021 Vol.49 No.3 pp.258-266 ref.32

8. Alleviation of tributyltin-induced toxicity by diet and microplastics in the marine rotifer Brachionus koreanus.

To determine the effects of tributyltin (TBT) upon multiple exposures of diet and microplastic in rotifer, in vivo life parameters were measured. In 10 μg/L TBT-exposed rotifer, the 1 and 0.5 x diet groups resulted in reproduction reduction. However, 10 x diet treatment showed no significant...

Author(s) : Yoon DeokSeo; Lee Yoseop; Park JunChul; Lee MinChul; Lee JaeSeong

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Journal of Hazardous Materials 2021 Vol.402

9. Moments of weaknesses - exploiting vulnerabilities between germination and encystment in the Phytomyxea.

Attempts at management of diseases caused by protozoan plant parasitic Phytomyxea have often been ineffective. The dormant life stage is characterised by long-lived highly robust resting spores that are largely impervious to chemical treatment and environmental stress. This review explores some...

Author(s) : Amponsah, J.; Tegg, R. S.; Thangavel, T.; Wilson, C. R.

Publisher : Wiley, Oxford, UK

Journal article : Biological Reviews 2021 Vol.96 No.4 pp.1603-1615

10. Different wavelengths of visible light influence the conidial production and tolerance to ultra-violet radiation of the plant pathogens Colletotrichum acutatum and Fusarium fujikuroi.

The effects of the visible light wavelengths on germination, mycelial radial growth, and conidial production of the plant pathogens Colletotrichum acutatum and Fusarium fujikuroi were studied. Both fungi were grown on potato dextrose agar medium (PDA) in the dark (control) or on PDA under...

Author(s) : Costa, T. P. C.; Rodrigues, E. M.; Dias, L. P.; Pupin, B.; Ferreira, P. C.; Rangel, D. E. N.

Publisher : Springer, Dordrecht, Netherlands

Journal article : European Journal of Plant Pathology 2021 Vol.159 No.1 pp.105-115 ref.many

11. Evolving differentiation in African trypanosomes.

Differentiation is a central aspect of the parasite life cycle and encompasses adaptation to both host and environment. If we accept that evolution cannot anticipate an organism's needs as it enters a new environment, how do parasite differentiation pathways arise? The transition between vertebrate ...

Author(s) : Quintana, J. F.; Zoltner, M.; Field, M. C.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Trends in Parasitology 2021 Vol.37 No.4 pp.296-303 ref.58

12. Host effects on the free-living stages of Haemonchus contortus.

A group of 5 lambs (Host 1-5) was infected with the same batch of Haemonchus contortus and after patency individual faecal samples were collected, separately incubated at 23°C for 14 days and third stage larvae collected through Baermannisation. Life-history traits were compared between larvae from ...

Author(s) : Sauermann, C. W.; Candy, P.; Waghorn, T. S.; Bekelaar, K.; Leathwick, D. M.

Publisher : Elsevier B.V., Amsterdam, Netherlands

Journal article : Veterinary Parasitology 2021 Vol.292 ref.35

13. Progress towards the development of a P. vivax vaccine.

Introduction: Plasmodium vivax causes significant public health problems in endemic regions. A vaccine to prevent disease is critical, considering the rapid spread of drug-resistant parasite strains, and the development of hypnozoites in the liver with potential for relapse. A minimally effective...

Author(s) : De, S. L.; Ntumngia, F. B.; Nicholas, J.; Adams, J. H.

Publisher : Taylor & Francis, Abingdon, UK

Journal article : Expert Review of Vaccines 2021 Vol.20 No.2 pp.97-112 ref.259

14. Growth inhibition, toxin production and oxidative stress caused by three microplastics in Microcystis aeruginosa.

Microplastics (MPs) have aroused widespread concern due to their extensive distribution in aquatic environments and adverse effects on aquatic organisms. However, the underlying toxicity of different kinds of MPs on freshwater microalgae has not been examined in detail. In this study, we...

Author(s) : Zheng XiaoWei; Zhang WeiZhen; Yuan Yuan; Li YanYao; Liu XiangLin; Wang XiangRong; Fan ZhengQiu

Publisher : Elsevier, Amsterdam, Netherlands

Journal article : Ecotoxicology and Environmental Safety 2021 Vol.208 ref.42

15. Primary role of increasing urea-N concentration in a novel Microcystis densa bloom: evidence from ten years of field investigations and laboratory experiments.

A novel Microcystis bloom caused by Microcystis densa has occurred in a typical subtropical reservoir every spring and summer since 2012, and it has caused several ecological and economic losses. To determine the environmental factors that influence the growth and physiological characteristics of ...

Author(s) : Cai YangYang; Luo XiaoWen; He XiaoYuan; Tang ChangYuan

Publisher : Elsevier, Amsterdam, Netherlands

Journal article : Ecotoxicology and Environmental Safety 2021 Vol.208 ref.many

16. Influencing factors for the egg hatching of Spirometra mansoni.

Objective: To investigate the influence of external factors on Spirometra mansoni's egg hatching under laboratory conditions and screen the favorable factors to improve the egg hatching rate of Spirometra mansoni. Methods: The effects of residual chlorine in the fresh tap water, eggs' retention...

Author(s) : Tang XianShi; Yao JiaKai; Song WenJing; Zhang Ying; Liang YouSheng; Tong DeSheng

Publisher : Editorial Department of China Tropical Medicine, Haikou, China

Journal article : China Tropical Medicine 2021 Vol.21 No.5 pp.426-430 ref.16

17. Stress-activated protein kinases are involved in the replication of porcine deltacoronavirus.

This study was conducted to examine the role of stress-activated protein kinases (SAPKs), including c-Jun NH2-terminal kinases (JNK1/2) and p38 mitogen-activated protein kinase (MAPK), in porcine deltacoronavirus (PDCoV) infection. Results demonstrated the activation of JNK1/2 and p38 MAPK in...

Author(s) : Jeon JiHyun; Lee ChangHee

Publisher : Elsevier, Amsterdam, Netherlands

Journal article : Virology 2021 Vol.559 pp.196-209

18. Infection process of Colletotrichum coccodes tagged with GFP on Solanum tuberosum.

Potato Black Dot, caused by the fungal pathogen Colletotrichum coccodes, is a severe disease of potato (Solanum tuberosum). To study the pathogenicity process, we developed a C. coccodes transformant tagged with green fluorescent protein (GFP) and used it to infect the potato. The results showed...

Author(s) : Cui YueZhen; Yang ChengDe

Publisher : Elsevier Ltd, Oxford, UK

Journal article : PMPP Physiological and Molecular Plant Pathology 2021 Vol.115

19. Effects of environmental factors on the growth and proliferation of yeasts.

Yeast is one of the organisms that grow and survive in diverse conditions. The influence of environmental factors on its growth and proliferation were evaluated. The yeast used for the study was isolated from honey using Sabouraud Dextrose Agar and pour plate methods. The effects of temperature, pH ...

Author(s) : Ezaka, E.; Nchedo, O.; Ugbo, E. N.; Adediran, A. B.; Ayanda, O. E.

Publisher : Biotechnology Society of Nigeria (BSN), Jos, Nigeria

Journal article : Nigerian Journal of Biotechnology 2021 Vol.38 No.1 pp.166-178 ref.19

20. DNA content in Acanthamoeba during two stress defense reactions: encystation, pseudocyst formation and cell cycle.

During environmental stress, the vegetative cells of the facultative pathogenic amoeba Acanthamoeba castellanii reversibly differentiate into resistant dormant stages, namely, cysts or pseudocysts. The type of resistant stage depends on the nature and duration of the stressor. Cell differentiation...

Author(s) : Bínová, E.; Bína, D.; Nohýnková, E.

Publisher : Elsevier GmbH, Munich, Germany

Journal article : European Journal of Protistology 2021 Vol.77

21. Aerobic bioconversion of C-glycoside mangiferin into its aglycone norathyriol by an isolated mouse intestinal bacterium.

Norathyriol is an aglycone of a xanthonoid C-glycoside mangiferin that possesses different bioactive properties useful for humans compared to mangiferin. Mangiferin is more readily available in nature than norathyriol; thus, efficient mangiferin conversion into norathyriol is desirable. There are a ...

Author(s) : Hasanah, U.; Miki, K.; Nitoda, T.; Kanzaki, H.

Publisher : Taylor & Francis, Singapore, Singapore

Journal article : Bioscience, Biotechnology and Biochemistry 2021 Vol.85 No.4 pp.989-997

22. Survival of Erwinia psidii in epiphytic, soil and Eucalyptus leaf debris conditions.

Erwinia psidii is an airborne bacterium that is the causal agent of eucalyptus bacterial blight in Brazil. However, there are no studies on the survival of the bacterial pathogen under epiphytic, soil and eucalyptus leaf debris conditions. We investigated the survival of E. psidii on the...

Author(s) : Lanna-Filho, R.; Bieler, F. L.; Junior, N. B.

Publisher : Wiley, Berlin, Germany

Journal article : Forest Pathology 2021 Vol.51 No.5 ref.72

23. Seaweed-based biostimulant improves photosynthesis and effectively enhances growth and biofuel potential of a green microalga Chlorella variabilis.

The main aim of the present study was to determine the effects of a seaweed-based biostimulant's supplementation on the growth of Chlorella variabilis. A liquid extract from Kappaphycus alvarezii (K-sap) was prepared and supplemented in the growth medium from 0.2 to 5% concentrations. The...

Author(s) : Himanshu Sati; Kaumeel Chokshi; Rajapitamahuni Soundarya; Arup Ghosh; Sandhya Mishra

Publisher : Springer, Dordrecht, Netherlands

Journal article : Aquaculture International 2021 Vol.29 No.3 pp.963-975 ref.48

24. Identification and characterization of Colletotrichum gloeosporioides sensu stricto, the agent of anthracnose disease of Sorbaria sorbifolia in China.

The pathogen causing Sorbaria sorbifolia anthracnose in Shandong Province, China was identified as Colletotrichum gloeosporioides sensu stricto using morphological and molecular approaches. The daily growth rate was 13.7 mm/d (25°C); the optimum for growth and conidial germination was 25-30°C, pH...

Author(s) : Wang QingHai; Li XiangYing; Xu TingTing; Zhang MengAi; Yang YuHui; Feng PeiBo; Fan SuSu; Liu ZhenYu

Publisher : Springer-Japan, Tokyo, Japan

Journal article : Journal of General Plant Pathology 2021 Vol.87 No.2 pp.71-76 ref.8

25. A computational approach to incorporate metabolite inhibition in the growth kinetics of indigenous bacterial strain Bacillus subtilisMN372379 in the treatment of wastewater containing Congo red dye.

A rigorous knowledge of the bacterial growth kinetics is essential for the scaling-up and optimization of biodegradation process conditions in a bioreactor. Although a great deal of literature is available on the modeling of bacterial growth kinetics considering the inhibition at high...

Author(s) : Anuj Chaturvedi; Rai, B. N.; Singh, R. S.; Jaiswal, R. P.

Publisher : Springer US, Philadelphia, USA

Journal article : Applied Biochemistry and Biotechnology 2021 Vol.193 No.7 pp.2128-2144 ref.39