Thermally Dimorphic Fungi_3B by Ronnie Dumale

(FUNGI) Sporothrix schenckii is a dimorphic fungus, a fungi-like eukaryotic creature with a non-mobile, heterotrophic cell wall that contains chitin. The fungus is found in soil, decaying woods, thorns, and on infected animals including rats, eats, dogs, and horses. In infected tissues, the fungus is seen as cigar shaped yeast cells, without mycelia. Spore is the infective stage of the fungus. It causes infection primarily on the hand or the forearm through direct contact of the skin by spores.

luayhazelann — 2024-02-07 05:40:50 UTC

(MOLD) Sporothrix schenckii, the mold contains hyphae bearing flower-like structures of small conidia on delicate sterigmata. Human infections are mainly associated with the Sporothrix schenckii and this is the most virulent spp. in terms of mortality, tissue burden, and tissue damage. Occupations such as agriculture, gardening, foresting, nursery and veterinary work are particularly at risk. Human infections have also been associated with insect bites, fish handling and bites of birds, etc,..

luayhazelann — 2024-02-07 05:46:36 UTC

PARACOCCIDIOIDES BRASILIENSIS YEAST: Thrives at 37°C in brain heart agar. Size from 4-60 μm, the majority having a diameter of 30 μm or less. Exhibiting several peripheral narrow-based buds and distinct refringent cell wall. Forming multiple buds covering the mother yeast cell entirely. As thin neck segment connects the daughter cell to the mother cell. Secondary buds may form, generating short chains, before the bud's separation from the mother cell. Contains alpha-1, 3-glucan and chitin.

amaynajuvy — 2024-02-07 06:06:23 UTC

PARACOCCIDIOIDES BRASILIENSIS MOLD FORM: Referred to saprophytic phase, grows on Sabouraud dextrose-agar at 19–25°C. In 2-3 weeks, the colony grows and reaches a diameter of 1-2 cm. Yields aleuriconidia, hyaline, and septate hyphae. The hyphae don't sporulate and are frequently sterile. Seen in arthroconidia and intercalary chlamydospores. With a large number of terminal or intercalated chlamiconidia. Has chitin with beta-1, 3-glucan.

amaynajuvy — 2024-02-07 06:13:09 UTC

(YEAST FORM) BLASTOMYCES DERMATITIDIS - The Blastomyces dermatitidis yeast form is spherical, thick-walled, and large, with a broad base. It can be thermally dimorphic, growing as a mold at lower temperatures and changing into the yeast form when inhaled. It reproduces by producing a single bud. The yeast form can generate a capsule that increases its resistance to phagocytosis. It is usually light brown or yeast-colored. Only qualified personnel should handle this pathogen due to its risk.

paulinemacuja — 2024-02-07 08:11:33 UTC

(MOLD FORM) BLASTOMYCES DERMATITIDIS - The filamentous, septate hyphae and conidia, which are asexual spores that disperse the fungus, are features of Blastomyces dermatitidis molds. They can turn into yeast in warmer climates and are found in damp soil close to bodies of water. Because the mold is pathogenic, handling it outside of a laboratory should only be done by qualified specialists.

paulinemacuja — 2024-02-07 08:13:37 UTC

(YEAST FORM) Penicillum marneffei: Penicillium marneffei is a fungus that shifts between yeast and mold forms. The yeast stage, thriving at body temperature, causes penicilliosis, especially in immunocompromised individuals. It presents as oval to spherical cells with budding, invading various tissues. Recognizing the yeast form is crucial for accurate diagnosis and treatment of penicilliosis.

2024-02-09 01:04:30 UTC

(MOLD FORM) Penicillium marneffei: a mold found in tropical areas like Southeast Asia, spreads through airborne conidia. It grows in cooler environments and is a reservoir for infection. Immunocompromised individuals inhale the spores, leading to systemic infections. Diagnosis involves laboratory culture and microscopic examination. Recognizing the mold form is crucial for understanding its presence in the environment and transmission dynamics.

ecamposanto — 2024-02-09 01:10:05 UTC

(MOLD FORM) COCCIDIOIDES IMMITIS — As an infectious, dimorphic fungus, Coccidioides immitis can take on the appearance of either mold or yeast, depending on the conditions. In its mold form, Coccidioides immitis is a mycelium that produces structures known as arthroconidia. Arthroconidia are the contagious airborne spores discharged when soil is disturbed, causing human respiratory illnesses. The mold phase frequently thrives in arid soil conditions.

pauleanedagsdas — 2024-02-09 01:18:03 UTC

(YEAST FORM) COCCIDIOIDES IMMITIS — Coccidioides begins the yeast stage of its life cycle once it is within the alveoli. Coccidioides immitis is a yeast that takes the shape of vast, thick-walled structures called spherules that hold endospores. The fungus that causes coccidioidomycosis in the host is in this pathogenic phase.

pauleanedagsdas — 2024-02-09 01:18:46 UTC

Blastomycetes dermatitis (Yeast) - In the yeast phase, Blastomycetes dermatitis are large yeast approximately 8-12 μm and the Blastoconidia are attached by broad base. Culture media used is blood agar at 37C. KOH (10%), or calcofluor white, may be used to enhance the detection of the Blastomycetes dermatitis yeast cells.

lladonesjoy — 2024-02-09 14:52:22 UTC

Blastomycetes dermatitis (Mold) – In the mold phase, macroscopic morphology of Blastomycetes dermatitis is slow to moderate growth, and it terms of color, white to dark tan. Young colonies tenacious, older colonies glabrous to woolly. And microscopic morphology is Oval, pyriform, to globose smooth conidia borne on short, lateral hypha-like conidiophores. Culture is the gold standard for diagnosing blastomycosis.

lladonesjoy — 2024-02-09 14:55:55 UTC

Coccidiodes immitis (Yeast) – In the yeast phase, Coccidiodes immitis is spherules and approximately 30-60 μm containing endospores. Clinical diseases include primary lung, asymptomatic, secondary cavitary, progressive pulmonary. Serologic tests to detect IgM and IgG antibodies are most often used to diagnose coccidioidomycosis.

lladonesjoy — 2024-02-09 14:59:36 UTC

Coccidiodes immitis (Mold) – In the mold phase, Coccidiodes immitis in the macroscopic morphology is white to tan to dark gray and it is rapidly growth. In terms of microscopic morphology it is term as alternating one-celled, “barrel-shaped” arthroconidia with disjunctor cells. Direct smear examination of secretions may reveal the spherules containing the endospores.

lladonesjoy — 2024-02-09 15:00:24 UTC

Blastomyces dermatitidis (Yeast Form)

sophialorenmendoza — 2024-02-14 12:07:22 UTC

Blastomyces dermatitidis (Mold Form)

sophialorenmendoza — 2024-02-14 12:12:47 UTC

Coccidioides immitis (Yeast Form)

sophialorenmendoza — 2024-02-14 12:26:52 UTC

Coccidioides immitis (Mold Form)

sophialorenmendoza — 2024-02-14 12:32:36 UTC

Histoplasma capsulatum var. capsulatum (Yeast form on a bone marrow smear)

sophialorenmendoza — 2024-02-14 12:46:47 UTC

Histoplasma capsulatum var. capsulatum (Mold Form)

sophialorenmendoza — 2024-02-14 12:49:05 UTC

Paracoccidioides brasiliensis (Mold Form)

sophialorenmendoza — 2024-02-14 13:18:02 UTC

Paracoccidioides brasiliensis (Yeast Form)

sophialorenmendoza — 2024-02-14 13:20:34 UTC

Sporothrix schenckii (Yeast Form)

sophialorenmendoza — 2024-02-14 13:32:29 UTC

Sporothrix schenckii (Mold Form)

sophialorenmendoza — 2024-02-14 13:33:40 UTC

Penicillium marneffei (Yeast Form)

sophialorenmendoza — 2024-02-14 13:40:45 UTC

Penicillium marneffei (Mold Form)

sophialorenmendoza — 2024-02-14 13:43:37 UTC

Coccidiodes immitis (yeast form)

antoniomar1 — 2024-02-15 11:22:45 UTC

Coccidiodes immitis (mold form)

antoniomar1 — 2024-02-15 11:25:19 UTC

BLASTOMYCES DERMATITIDIS (YEAST FORM)

2024-02-15 13:04:21 UTC

BLASTOMYCES DERMATITIDIS (MOLD FORM)

justinemaeaquino — 2024-02-15 13:21:55 UTC

Sporothrix schenckii (Yeast Form)

2024-02-15 16:17:17 UTC

Sporothrix schenckii (Mold Form)

katesoria — 2024-02-15 16:24:54 UTC

Blastomyces dermatitidis (MOLD FORM)

khamelajhinds — 2024-02-15 17:19:25 UTC

Blastomyces dermatitidis (YEAST FORM)

khamelajhinds — 2024-02-15 17:21:33 UTC

Coccidioides immitis (Yeast Form)

irremvelasco — 2024-02-16 02:15:21 UTC

Coccidioides immitis (Mold Form)

irremvelasco — 2024-02-16 02:17:55 UTC

Histoplasma capsulatum var capsulatum (Yeast Form)

katesoria — 2024-02-16 08:43:34 UTC

Histoplasma capsulatum var. capsulatum (Mold Form)

irremvelasco — 2024-02-16 09:09:39 UTC

Penicillium marneffei (Yeast Phase)

raphaelinigomaliksi — 2024-02-16 12:38:02 UTC

Penicillium marneffei (Mold Phase)

raphaelinigomaliksi — 2024-02-16 12:41:12 UTC

Penicillium marneffei (yeast phase)

seanaustinsalgado — 2024-02-16 13:03:10 UTC

Penicillium marneffei (mold phase)

seanaustinsalgado — 2024-02-16 13:14:58 UTC

Blastomyces dermatitidis (Yeast Phase)

abagonjal — 2024-02-16 13:27:15 UTC

Blastomyces dermatitidis (Mold Phase)

abagonjal — 2024-02-16 13:30:56 UTC

HISTOPLASMA CAPSALATUM (MOLD FORM). The mold form of this type of dimorphic fungi has a characteristic of small (2 to 4 µm in diameter), round to oval yeast organisms found in the cytoplasm of peripheral blood neutrophil, eosinophils which are occationally found on dogs and cats as well as monocyte

plamosan — 2024-02-16 13:43:51 UTC

HISTOPLASMA CAPSALATUM (YEAST FORM). The morphological feature of this dimorphic fungi that will aid in diagnosis are the polar budding which gives them their characteristic of narrow budding, a bridge appearance between the mother and daughter cells as well as it's shape (ovoid) and size of 2-5 um in diameter. The yeast phase has an optimal growth rate at 37•c inside the host

plamosan — 2024-02-16 13:49:52 UTC

Penicillum marneffei (YEAST) – In macroscopic features of Penicillum marneffe, the colonies are initially white and become blue green, gray green, olive gray, yellow or pinkish in time. The yeastlike cells of P. marneffei can be detected in Wright-stained smears from skin lesions or biopsy specimens.

cedrickleisoberano — 2024-02-16 13:50:11 UTC

Penicillum marneffei (MOLD) - Penicillum marneffei grows as a mold with red to black conidia whereas in tissue it forms a 3–5-µm yeast-like cell that divides by binary fission. Polymerase chain reaction tests have been described for identification confirmation.

cedrickleisoberano — 2024-02-16 13:51:23 UTC

Sporothrix schenckii (YEAST) - Sporothrix schenckii in the yeast phase, assumes a filamentous form, composed of hyaline, septate hyphae 1 to 2 μm wide, with conidiogenous cells arising from undifferentiated hyphae forming conidia in groups on small, clustered denticles. Microscopic examination from culture reveals thin, delicate hyphae bearing conidia developing in a rosette pattern at the ends of delicate conidiophores.

cedrickleisoberano — 2024-02-16 13:52:25 UTC

Sporothrix schenckii (MOLD) - Sporothrix schenckii in mold phase, assumes the mycelial form has fine, septate, branching hyphae that carry perpendicular ovoid roseate conidia. Direct examination of tissue might reveal S. schenckii as small, cigar-shaped yeast. present.

cedrickleisoberano — 2024-02-16 13:53:19 UTC

Penicillium marneffei (Yeast Phase)

cabreracam — 2024-02-16 14:22:40 UTC

Sporothrix schenckii (Mold-Form)

shairamarieambrocio — 2024-02-16 14:28:01 UTC

Penicillium marneffei (Mold Phase)

cabreracam — 2024-02-16 14:28:41 UTC

Sporothrix schenckii (Yeast-Form)

shairamarieambrocio — 2024-02-16 14:31:00 UTC

Mold Form: Coccidioides immitis is a soil-dwelling dimorphic fungi that causes coccidioidomycosis, commonly known as Valley Fever. Its distinctive morphological features, notably the presence of barrel-shaped arthroconidia. Diagnostic procedures often involve identifying these distinctive structures in clinical specimens, such as sputum or tissue samples, through microscopy or culture. Additionally, serological tests detecting specific antibodies may aid in diagnosis.

nicolemaeperalta — 2024-02-16 14:37:15 UTC

Paracoccidioides brasiliensis (Mold phase)

aloguinjas — 2024-02-16 14:47:08 UTC

Paracoccidioidomycosis, a systemic mycosis primarily seen in Central and South America, is caused by the fungus Paracoccidioides brasiliensis. The fungus can take on two different morphological forms: the mold phase and the yeast phase—due to a process known as dimorphic transition. While the yeast phase is linked to host infection, the mold phase usually happens in the environment. The fungal species develop as a mold at room temperature (19–25°C) and are then known as the saprophytic phase. During the mold phase, its cell wall like other fungi is composed of various components which provide structural integrity and protection. It usually comprises a complex matrix made up of chitin, glycoproteins, and polysaccharides. N-acetylglucosamine polymer chitin has a crucial structural role in the fungal cell wall.
Mannoproteins and other glycoproteins are also present in the cell wall, adding to its structure and functionality. The mold phase is more adapted to the colder climatic conditions present in soil and other substrates than the yeast phase, which grows at higher temperatures inside the host's body. This can be considered a saprophytic fungus that feeds on decomposing organic waste in the surrounding environment while it is in the mold phase. It uses conidia, asexual spores produced by the mold phase, to help spread and survive in its surroundings.
The fungus can spread to new areas with the help of air currents or other mechanisms carrying the conidia. For Paracoccidioides brasiliensis, the capacity to switch between the mold and yeast phases is an essential component of pathogenicity. Conidia or mycelial fragments can change into the yeast phase in reaction to the physiological circumstances of a host upon inhalation by a susceptible host, hence commencing infection. It is non-pathogenic, unlike its yeast phase.

Coccidioides immitis (Mold phase)

bermejomar — 2024-02-16 15:00:54 UTC

Coccidioides immitis (Yeast phase)

bermejomar — 2024-02-16 15:01:47 UTC

Paracoccidioides bransiliensis

gabriellesophiadagohoy — 2024-02-16 15:03:08 UTC

The image presented is a photomicrograph illustrating the Yeast Phase, known as the "mariner's wheel," of Paracoccidioides brasiliensis. The characteristic budding yeast measures between 15 to 30 µm in diameter and demonstrates multipolar budding around its edges, giving the yeast cell the appearance of a "Mickey Mouse cap". The yeast form of Paracoccidioides brasiliensis can develop at 37°C, but its shape changes depending on the temperature. This fungus is composed of 37% chitin, a common polysaccharide, and 33% α-1,3-glucan. Its cell wall contains some galactose and mannose.

Paracoccidioides brasiliensis (Yeast Form)

belloladybernadeth — 2024-02-16 15:10:23 UTC

Paracoccidioides brasiliensis

gabriellesophiadagohoy — 2024-02-16 15:10:34 UTC

Paracoccidioides brasiliensis showcases diverse mold morphologies, with its characteristic dimensions spanning from 2 to 10 µm in diameter, and the colony reaching maturity every 2 to 3 weeks. Flat colonies exhibit various textures, ranging from smooth to leathery, wrinkled to folded, and fluffy to velvety, with colors spanning pink, beige, and brown, often with a yellowish-brown. The mold can thrive at 22°C. Comprising 37% chitin, 8% β-1,3-glucan, and protein, this fungus can generate hyaline, septate hyphae, and aleuriconidia.

Penicillium Marneffei (Yeast Form): From a microscopical perspective, It appears as globose to elongated sausage-shaped cells (3 to 5 µm) that reproduce by fission during its yeast phase. By subculturing the organism to an enriched medium such as BHI and incubating at 35°C, Penicillium marneffei can be easily induced to create the arthroconidial yeast-like state. After a week, arthroconidia-containing hyphae and yeast-like structures splitting by fission are formed.

povenmariedu — 2024-02-16 15:11:26 UTC

Paracoccidioides brasiliensis (Yeast form)

aloguinjas — 2024-02-16 15:12:29 UTC

Yeast Form: Coccidioides immitis displays unique features including the formation of sizable spherical structures called spherules. This characteristic is observed during microscopic examination of clinical samples, strongly indicates Coccidioides immitis infection. Diagnosis can be achieved through commercially available antibody tests, and treatment typically involves a 3-6 month oral regimen of fluconazole or other prescription antifungal medications.

nicolemaeperalta — 2024-02-16 15:20:13 UTC

Histoplasma capsulatum var. capsulatum (Yeast form)

ainahkirsteendeguzman — 2024-02-16 15:20:50 UTC

Penicillium Marneffei (Mold form): Microscopy of the mold form of P. marneffei showing septated hyaline hyphae and fruiting structures composing of branching metulae and philiades with spherical condidia in chains. At room temperature it grows as a mould with red to black conidia.

povenmariedu — 2024-02-16 15:21:37 UTC

Histoplasma capsulatum var. capsulatum (Mold form)

ainahkirsteendeguzman — 2024-02-16 15:22:13 UTC

Paracoccidioides brasiliensis (Mold Form)

belloladybernadeth — 2024-02-16 16:08:18 UTC

Histoplasma capsulatum var capsulatum (Yeast Form)

belloladybernadeth — 2024-02-16 16:08:39 UTC

Blastomyces dermatitidis (Yeast form)

2024-02-16 16:21:41 UTC

Histoplasma capsulatum var capsulatum (Mold Form)

belloladybernadeth — 2024-02-16 16:24:51 UTC

Blastomyces dermatitidis (Mold form)

catherinejoybiaton — 2024-02-16 16:28:41 UTC

Sporothrix schenckii (Mold Form)

claudillegawaran — 2024-02-16 17:20:09 UTC

Sporothrix schenckii (Yeast Form)

claudillegawaran — 2024-02-16 17:22:58 UTC

Paracoccidioides brasiliensis (Yeast form)

catherinejoybiaton — 2024-02-16 18:14:40 UTC

Paracoccidioides brasiliensis (Mold form)

catherinejoybiaton — 2024-02-16 18:18:26 UTC

GROUP 7: Penicillium marneffei (yeast phase)

2024-02-16 19:31:24 UTC

GROUP 7: Pernicillium marneffei (Mold Phase)

loregenesaro — 2024-02-16 19:49:04 UTC

Sporothrix schenckii

2024-02-16 23:42:15 UTC

Paracoccidioides brasiliensis

2024-02-16 23:42:41 UTC

Paracoccidioides brasiliensis (YEAST FORM)

cinderellajusto — 2024-02-16 23:48:34 UTC

Coccidioides Immitis (Spherule Form)

richellesepanton — 2024-02-16 23:54:38 UTC

Paracoccidioides brasiliensis (MOLD PHASE)

cinderellajusto — 2024-02-17 00:02:12 UTC

Coccidioides immitis (Mold form)

richellesepanton — 2024-02-17 00:08:01 UTC

Histoplasma capsulatum var. capsulatum

tolinioche — 2024-02-17 01:00:31 UTC

CAPSALATUM HISTOPLASMA (MOLD FURM). The shape of this mold Small (2 to 4 um in diameter), round to oval yeast organisms are a hallmark of this type of dimorphic fungus that are discovered in the cytoplasm of peripheral blood neutrophils, or eosinophils, which are occasionally seen on dogs, cats, and monocytes.

2024-02-17 02:08:58 UTC

The shape of this mold

Small (2 to 4 um in diameter), round to oval yeast organisms are a hallmark of this type of dimorphic fungus that are discovered in the cytoplasm of peripheral blood neutrophils, or eosinophils, which are occasionally seen on dogs, cats, and monocytes.

CAPSALATUM HISTOPLASMA (MOLD FURM).The shape of this moldSmall (2 to 4 um in diameter), round to oval yeast organisms are a hallmark of this type of dimorphic fungus that are discovered in the cytoplasm of peripheral blood neutrophils, or eosinophils, which are occasionally seen on dogs, cats, and monocytes.

castillojoe — 2024-02-17 02:14:27 UTC

the yeast form, HISTOPLASMA CAPSALATUM. This dimorphic fungus's morphological characteristics—which include its ovoid form, diameter of 2–5 um, and polar budding, which gives them their characteristic of narrow budding and a bridge-like appearance between the mother and daughter cells—will help with diagnosis. Inside the host, the yeast phase grows at its fastest at 37 °C.

2024-02-17 02:30:40 UTC

(MOLD FORM) SPOROTHRIX SCHENCKII

2024-02-17 11:31:36 UTC

(YEAST FORM) SPOROTHRIX SCHENCKII

2024-02-17 11:35:26 UTC

BLASTOMYCES DERMATITIDIS (YEAST FORM)

eurieunay — 2024-02-17 11:38:07 UTC

BLASTOMYCES DERMATITIDIS (MOLD FORM)

eurieunay — 2024-02-17 11:42:31 UTC