F0007 - Phylum Zygomycota and the new classification - Univap

Phylum Glomeromycota• Order Glomales• Arbuscules remain alive only for fewdays before disintegrating and beingdigested by the cells of the plant(Alexopoulos et al., 1996, p153).• In a healthy mycorrhizal relationshipthere is a continuous sequence ofdevelopment and disintegration ofPhylum Glomeromycota• Order Glomales• In return for a source of carbohydrates,VAM fungi appear to provide significantbenefits for their partners. Their hyphaeextend into the soil away from roots andgreatly increase the potential for theabsortion of water and the uptake ofphosphorus and other nutrients by the plant.arbuscules Zygomycota DENR 121Zygomycota DENR 122Phylum Glomeromycota• Order Glomales• It also been suggested that hyphae of VAMfungi may absorb and transfer metabolitesfrom other fungi, bacteria, actinomycetes,algae, and cyanobacteria in the rhizosphere totheir associated plants.• Also contribute to the resistance to certain rootpathogens, fungi and nematodes by productionof antibiotic substances.Zygomycota DENR 123Phylum GlomeromycotaEndomicorrizosZygomycota DENR 124Phylum Glomeromycota• Formam os esporos debaixo do solo e estãofrequentemente dentro de esporocarposmacroscópicos.Phylum Glomeromycota• Esporocarpos não são cultivados emmeio de cultura• Esporocarpos podem ter Zigósporos,Clamidósporos ou Azigósporos queficam envoltos por hifas estéril.Zygomycota DENR 125Zygomycota DENR 12621