Ukugqwala kukakolweni okunsundu (Puccinia recondita)
- Isigaba: Basidiomycota (Basidiomycetes)
- Ukuhlukaniswa iziqephu: Pucciniomycotina
- Ikilasi: Pucciniomycetes (Pucciniomycetes)
- I-Subclass: I-Incertae sedis (yesikhundla esingaqinisekile)
- I-oda: I-Pucciniales (Amakhowe aRust)
- Umndeni: I-Pucciniaceae (Pucciniaceae)
- Uhlobo: I-Puccinia (Puccinia)
- Uhlobo: I-Puccinia recondita (Ukugqwala kukakolweni okunsundu)
Incazelo:
Ukugqwala kukakolweni okunsundu (i-Puccinia recondita) isikhunta esiyisinambuzane esihlasela kakhulu ukolweni kodwa nokunye okusanhlamvu. Lesi sikhunta siyi-parasite yezilwane ezimbili futhi sinomjikelezo wokuphila ophelele onezinhlobo ezinhlanu ze-sporulation. Esigabeni sokumila, isikhunta singaba khona njenge-aeciospores, dikaryotic mycelium, urediniospores, kanye ne-teliospores. I-Teleito- kanye ne-uredospores iguqulelwe ngokukhethekile ubusika. Entwasahlobo, ziyahluma futhi zenze i-basidium ene-basidiospores ezine ezithelela umsingathi ophakathi - i-hazel noma i-cornflower. I-Spermatogonia ikhula emaqabunga e-host host ephakathi, futhi ngemva kokuvundiswa okuphambene, kwakheka ama-aetsiospores angena ngqo ukolweni.
Spread:
Lesi sikhunta sisabalele yonke indawo lapho kutshalwa khona ukolweni. Ngakho-ke, alikho izwe elingavikelekile esigamekweni sokucekelwa phansi kwezitshalo. Njengoba ezifundeni ezisenyakatho naseSiberia, izinhlamvu azivezwa isomiso sasehlobo nokushisa, zizosinda kangcono, futhi amathuba okuba nezifo zezitshalo akhula kakhulu. Ngasikhathi sinye, ukugqwala okunsundu kukakolweni kuthinta izitshalo zasebusika nezasentwasahlobo, kanye nezinye izinhlobo zokusanhlamvu - i-bonfire, i-wheatgrass, i-wheatgrass, i-fescue, i-bluegrass.
I-fungus overwinters ikakhulukazi ngesimo se-mycelium emaqabunga kakolweni wasebusika kanye nezinhlamvu zasendle. Ngokubonakala kwamazolo amaningi ekuseni, izinhlamvu ziqala ukumila ngobuningi. Inani eliphakeme lokukhula kwesikhunta liwela ngesikhathi sokuqhakaza okusanhlamvu.
Inani lezomnotho:
Ukugqwala okunsundu kubangela umonakalo omkhulu ekukhiqizeni okusanhlamvu emazweni ahlukene. Ezweni Lethu, izifunda lapho lesi sifo senzeka khona kakhulu yisifunda saseVolga, isifunda esiseCentral Black Earth kanye nesifunda saseNyakatho yeCaucasus. Lapha ukugqwala okunsundu kuthelela ukolweni cishe minyaka yonke. Ukulwa ngokuphumelelayo ne-agent causative yalesi sifo emabhizinisini ezolimo, izinhlobo ezifuywa ngokukhethekile zikakolweni nokusanhlamvu ezimelana nokugqwala kwamaqabunga zisetshenziswa kakhulu.