Cov kab mob sib deev hu ua blastoconidia (blastospores) tsim nyob rau hauv pawg raws hyphae, feem ntau ntawm cov ntsiab lus ntawm cov ceg. Nyob rau hauv tej yam kev loj hlob, tuab-walled survival spores hu ua chlamydoconidia (chlamydospores) kuj tuaj yeem tsim ntawm cov lus qhia lossis ua ib feem ntawm hyphae (saib daim duab 8.2.
cov poov xab tuaj qhov twg?
The budding poov Saccharomyces cerevisiae rov tsim dua los ntawm mitosis li diploid hlwb thaum cov as-ham muaj ntau, tab sis thaum tshaib plab, cov poov xab no nkag mus rau meiosis los ua haploid spores.
Puas cov poov xab ua spores?
Yeasts reproduce ob leeg deev thiab asexually, tab sis tom kawg yog ntau dua. Nyob rau hauv kev sib deev kev sib deev, ib tug poov xab cell undergoes meiosis thiab tsim haploid spores; Cov spores no tuaj yeem rov ua dua nrog lwm cov spores haploid, tsim cov cell diploid - cov poov xab "ib txwm" xeev.
cov poov xab nyob qhov twg?
Paj, ib yam ntawm 1,500 hom ntawm cov kab mob ib leeg-celled fungi, feem ntau yog nyob rau hauv phylum Ascomycota, tsuas yog ob peb yog Basidiomycota. Cov poov tau pom thoob ntiaj teb hauv cov av thiab ntawm cov nroj tsuagthiab tshwj xeeb tshaj yog muaj ntau hauv cov suab thaj nruab nrab xws li paj nectar thiab txiv hmab txiv ntoo.
cov poov xab tshaj plaws nyob qhov twg?
Lub teb chaws uas muaj ntau tshaj plaws ntawm cov poov xab xa tawm nyob rau hauv 2016 yog Tuam Tshoj (X tonnes), Russia (X tonnes), Qaib ntxhw (X tonnes), thiab lub teb chaws Yelemees (X tonnes).), ua ke ua tiav ntawm X% ntawm tag nrhoxa tawm. Nws tau nyob deb ntawm Mexico (X tonnes), ua tiav X% feem ntawm tag nrho cov poov xab xa tawm.
