BioImages (UK)
BIOTA
(living things)
Eukaryota
(eukaryotes)
MYCETEAE
(fungi, moulds and lichens)
ASCOMYCOTA
(spore-shooters)
ASCOMYCETES
(spore shooters)
SORDARIOMYCETIDAE
(a subclass of ascomycetes and lichens)
MICROASCALES
(an order of ascomycetes)
Thielaviopsis basicola
(a dematiaceous anamorphic fungus)
Record
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BioImages: The Virtual Field-Guide (UK)

Thielaviopsis basicola (Berk. & Broome) Ferraris, 1912 (a dematiaceous anamorphic fungus)

Date: 13 August 2007
Location: Berks, England
Voucher: 13/08/2007[A]
(Please quote this in any queries about this record)
State: Imperfect stage
Record Summary: black patches on carrots, stored in garage
Associated organism: on stored taproot of Daucus carrota
Identification Notes: Superficial black mould growth on carrots in domestic storage.

The three infection spots photographed in close-up were individually confirmed microscopically.

An extremely fertile mould with conidia of two types:




Type 1 conidial chains: terminal, with dark grey walls, smooth, in chains of (2)3-9 so appearing multiseptate, shortly cylindric with flat ends, 7-9/10-11.5µm,(terminal conidium hemispherical), flat end-wall often with a minute central pore, arising from broad, c.8µm diam, multi-septate pale grey hyphae.

Type 2 phialoconidia: hyaline, smooth, cylindric, flat ended, very variable in size, 5-24/3-4.5µm, extruded through long tapering apex of pale grey narrowly fusiform phialides 130-180/7-8µm which are 3-7 septate towards base.

Images etc

naked eye photograph Infected carrots 378 by 500 pixels
naked eye photograph Infection spot - close-up 468 by 500 pixels
naked eye photograph Infection spot - close-up 424 by 500 pixels
naked eye photograph Infection spot - close-up 458 by 500 pixels
magnified photograph Infection spot - magnified 500 by 425 pixels
magnified photograph Infection spot - magnified 430 by 500 pixels
magnified photograph Infection spot - magnified 500 by 333 pixels
microscope photograph Phialide - magnified 317 by 500 pixels
microscope photograph Phialide - highly magnified 199 by 500 pixels
microscope photograph Phialide base - highly magnified 149 by 500 pixels
microscope photograph Phialide tip with conidium within - highly magnified 162 by 500 pixels
microscope photograph Phialide tip with phialoconidium within - highly magnified 500 by 442 pixels
microscope photograph Phialide, type 2 phialoconidia and type 1 conidial chain - magnified 326 by 500 pixels
microscope photograph Phialides - enlarged 391 by 500 pixels
microscope photograph Phialides and type 2 phialoconidia - magnified 500 by 390 pixels
microscope photograph Type 1 conidial chain - magnified 245 by 500 pixels
microscope photograph Type 1 conidial chain - magnified 500 by 333 pixels
microscope photograph Type 1 conidial chain - highly magnified 500 by 223 pixels
microscope photograph Type 1 conidial chain surrounded by type 2 phialoconidia - highly magnified 500 by 333 pixels
microscope photograph Type 1 conidial chains - enlarged 500 by 333 pixels
microscope photograph Type 1 conidial chains - magnified 500 by 333 pixels
microscope photograph Type 1 conidial chains - magnified 500 by 363 pixels
microscope photograph Type 1 conidial chains - magnified 500 by 391 pixels
microscope photograph Type 1 conidial chains - magnified 500 by 368 pixels
microscope photograph Type 1 conidial chains - magnified 500 by 333 pixels
microscope photograph Type 1 conidial chains - magnified 500 by 333 pixels
microscope photograph Type 1 conidial chains - magnified 500 by 333 pixels
microscope photograph Type 1 conidial chains and type 2 conidia - magnified 500 by 378 pixels
microscope photograph Type 1 conidial chains surrounded by type 2 phialoconidia - enlarged 374 by 500 pixels
microscope photograph Type 1 conidium (lateral view) and conidial chains - highly magnified 500 by 333 pixels
microscope photograph Type 1 conidium - end view showing pore - highly magnified 31 Kb 309 by 307 pixels
microscope photograph Type 1 conidium - end view showing pore - highly magnified 500 by 433 pixels
microscope photograph Type 1 conidium - oblique view showing pore in end face - highly magnified 59 Kb 416 by 451 pixels
microscope photograph Type 1 conidium - side view showing pore - highly magnified 63 Kb 452 by 443 pixels
microscope photograph Type 2 phialoconidia - highly magnified 500 by 407 pixels

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