Fungi Characteristics Lab 7 PDF
Document Details
Uploaded by Deleted User
Tags
Summary
This document contains notes on fungi characteristics, including types of hyphae, reproduction methods, and examples of different fungi. It also includes details on lab procedure such as media and how fungi are cultivated.
Full Transcript
Fungi Characteristics Fungicellwallcontainchitin andglucan Fungicannotdophotosynthesis byfungalspores canreproduce Fungi sexualnot common from2fungi genetically different Asexualdominate...
Fungi Characteristics Fungicellwallcontainchitin andglucan Fungicannotdophotosynthesis byfungalspores canreproduce Fungi sexualnot common from2fungi genetically different Asexualdominate m ethod one divide fungi identical genetically andsomeofthemareparasitic h eterotrophsandsaprophytes Fungiarechemo Filamentous fungiarecomposedofhyphae Totalmassofhyphaeiscalledmycelium each Manymyceliainteractswith otheriscalledThallus Typesof Hyphae 1Septate containcrosswalls 2Coenocyticaseplate Nocrosswalls Unicellular Yeast Yeastreproduceasexually byaprocesscalledbudding Abudformsontheoutersurfaceandcellwallmaterial islaiddownbetweentheparentcellandthebad appearsimilarto bacterialcolonies solid Yeastcolonies on media Yeastexamples Saccharomyces Candida Yeast colonies Form Circular Smooth yeastthe For f usedtogrowitisSuborandDextroseagarSDA typeomedia Elevation Convex why containhighsugarconcentration acidicpH low Margen Entire cultivated Saccharomyces Yeastsare by4waystreakand at37C incubated figment Creamy Yeastwetmount Loop methyleneblue NoteForbacteriaweusenutrientagarandthepH 7 Multicellular Molds t dative mycelium portionthat Vegetative themoldandabsorbnutrient anchors aerialmycelium portionthatproducesasexualspores Aspergillus onlyasexuallybyproducingconidiospores Reproduce Incertainfoodstheycan produce mycotoxins Foraspergillusthetypeofmediaisusedto growit isPotato agarEDA Dextrose Why ofcomplexcarbohydrate composed acidic pH low Aspergillus iscultivatedusingcorkborer needleandincubatedat25Cfor7days borerisusedtocut cork andsterilizedbyalcoholandflame fungaldisk Aspergillus wetmount needle Lactophenol colorlessor yellow slightly NoteAspergillusfreshculturecolorisblack Rhizopus Asexual reproduction sporangiosporeswithinsporangium produce sporangium saclikestructure Sexualreproduction producezygospores Forrhizopusthetypeofmediaisusedto growit isPotato agarEDA Dextrose Rhizopusiscultivatedusingcork borer needle andincubated at25Cfor7days Rhizopuswet mount blue needle lactophenolblue cotton NoteAspergillusfreshculturecoloriswhiteandoldcultureisblack Multicellular Mushroom Mushroom visiblepartsofcertainfungalgrowths Thefruitingbodiescarrysporesforreproduction Sporesformonthe gillsofamushroomunderneaththecap
