Mycelial Pellet Formation by Rhizopus oryzae ATCC 20344

2000 ◽  
pp. 779-789
Author(s):  
Ying Zhou ◽  
Jianxin Du ◽  
George T. Tsao
Keyword(s):  
Rhizopus Oryzae ◽  
Mycelial Pellet ◽  
Pellet Formation

Mycelial Pellet Formation by Rhizopus oryzae ATCC 20344

2000 ◽  
Vol 84-86 (1-9) ◽  
pp. 779-790 ◽  
Author(s):  
Ying Zhou ◽  
Jianxin Du ◽  
George T. Tsao
Keyword(s):  
Rhizopus Oryzae ◽  
Mycelial Pellet ◽  
Pellet Formation

scholarly journals Mycelial pellet formation by Penicillium ochrochloron species due to exposure to pyrene

2005 ◽  
Vol 160 (4) ◽  
pp. 375-383 ◽  
Author(s):  
Ambujom Saraswathy ◽  
Rolf Hallberg
Keyword(s):  
Mycelial Pellet ◽  
Pellet Formation

scholarly journals Transcriptome analysis of Rhizopus oryzae seed pellet formation using triethanolamine

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Na Wu ◽  
Jiahui Zhang ◽  
Wen Ou ◽  
Yaru Chen ◽  
Ru Wang ◽  
...  
Keyword(s):  
Rhizopus Oryzae ◽  
Mitogen Activated Protein Kinase ◽  
Acid Fermentation ◽  
Regulatory Pathways ◽  
Seed Culture ◽  
Pellet Formation ◽  
Pellet Morphology ◽  
Mitogen Activated Protein ◽  
Protein Kinase Signaling ◽  
Product Output

AbstractRhizopus oryzae (R. oryzae) can effectively produce organic acids, and its pellet formation in seed cultures has been shown to significantly enhance subsequent fermentation processes. Despite advances in strain development, simple and effective methods for inducing pellet morphology and a basic understanding of the mechanisms controlling this process could facilitate substantial increases in efficiency and product output. Here, we report that 1.5% triethanolamine (TEOA) in seed culture medium can activate the growth of R. oryzae spores in compact and uniform pellets which is optimal for fermentation conditions. Analysis of fermentation kinetics showed that the production of fumaric and L-malic acid increases 293% and 177%, respectively. Transcriptomic analysis revealed that exposure of R. oryzae to 1.5% TEOA during the seed culture activated the phosphatidylinositol and mitogen-activated protein kinase signaling pathways. Theses pathways subsequently stimulated the downstream carbohydrate-active synthases and hydrolases that required for cell wall component synthesis and reconstruction. Our results thus provide insight into the regulatory pathways controlling pellet morphology germane to the viability of seed cultures, and provide valuable reference data for subsequent optimization of organic acid fermentation by R. oryzae.

scholarly journals Mycelial pellet formation by edible ascomycete filamentous fungi, Neurospora intermedia

AMB Express ◽  
2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ramkumar B. Nair ◽  
Patrik R. Lennartsson ◽  
Mohammad J. Taherzadeh
Keyword(s):  
Filamentous Fungi ◽  
Mycelial Pellet ◽  
Pellet Formation ◽  
Neurospora Intermedia

Mycelial Pellet Formation in Fungal Lipid Production by Cunninghamella bainieri 2A1 Using Repeated Batch Culture

2015 ◽  
Vol 38 (4) ◽  
pp. 329-332 ◽  
Author(s):  
Marjan Ganjali Dashti ◽  
Peyman Abdeshahian ◽  
Ekhlass M. Taha ◽  
Nimah Bahreini Esfahani ◽  
Mohd Sahaid Kalil ◽  
...  
Keyword(s):  
Batch Culture ◽  
Lipid Production ◽  
Mycelial Pellet ◽  
Repeated Batch Culture ◽  
Pellet Formation ◽  
Repeated Batch

A new approach of pellet formation of a filamentous fungus – Rhizopus oryzae

2007 ◽  
Vol 98 (18) ◽  
pp. 3415-3423 ◽  
Author(s):  
W LIAO ◽  
Y LIU ◽  
C FREAR ◽  
S CHEN
Keyword(s):  
Filamentous Fungus ◽  
Rhizopus Oryzae ◽  
New Approach ◽  
Pellet Formation

Case of a diabetic man cured from rhinocerebral zygomycosis

2010 ◽  
Vol 151 (39) ◽  
pp. 1591-1596
Author(s):  
Botond Lakatos ◽  
Radka Nikolova ◽  
László Ocskay ◽  
Judit Csomor ◽  
Gyula Prinz
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Amphotericin B ◽  
Rhizopus Oryzae

A zygomycosis (mucormycosis) ritka, kifejezetten agresszív lefolyású opportunista infekció, amelyet a Zygomycota (Járomspórás gombák) törzs Zygomycetes osztályába tartozó gombák okoznak. Jellemzően immunhiány, neutropenia, vastúlterhelés, hematológiai betegség, illetve diabeteses ketoacidosis eseteiben fordul elő. Esetismertetés: A szerzők 18 éves, 9 éve inzulindependens diabetes mellitusban szenvedő, rossz compliance-szel rendelkező beteg kórtörténetét ismertetik. Súlyos állapotban, beszűkült tudattal, ketoacidosisban, orrmelléküreg-gyulladásra utaló egyoldali periorbitalis duzzanattal, bőrpírral került kórházba. Bár az endoszkópos sinusműtét során vett váladékból methicillinrezisztens Staphylococcus aureus és Pseudomonas aeruginosa tenyészett, a beteg anamnézise, klinikuma zygomycosis gyanúját keltette, emiatt amphotericin-B-kezelést indítottak. Szövettani, illetve mikrobiológiai vizsgálatok során Rhizopus oryzae okozta invazív infekció igazolódott. Megbeszélés: Az antifungális kezelés ismételt sebészeti beavatkozásokkal és adjuváns granulocytakolónia-stimuláló faktor alkalmazásával kiegészítve eredményesnek bizonyult. A beteg négy hónappal hazabocsátását követően él és panaszmentes. Orv. Hetil., 2010, 39, 1591–1596.

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