Effects of element complexes containing Fe, Zn and Mn on artificial morel’s biological characteristics and soil bacterial community structures

Abstract

This study described the effects of elements (including Fe, Zn, Mn and their complexes) on the following factors in artificial morel cultivation: the characteristics of mycelia and sclerotia, soil bacterial community structures, yields and contents of microelements. The results indicated that the groups containing Mn significantly promoted mycelia growth rates, and all the experimental groups resulted in higher yields than the control (P<0.01), although their mycelia and sclerotia did not show obvious differences. It was also found that Proteobacteria, Chloroflexi, Bacteroides, Firmicutes, Actinobacteria, Acidobacteria and Nitrospirae were the dominated bacterial phyla. The Zn·Fe group had an unexpectedly high proportion (75.49%) of Proteobacteria during the primordial differentiation stage, while Pseudomonas also occupied a high proportion (5.52%) in this group. These results suggested that different trace elements clearly affected morel yields and soil bacterial community structures, particularly due to the high proportions of Pseudomonas during the primordial differentiation stage.

Growing edible mushrooms: a conversation between bacteria and fungi

“…The structure and dynamics of the bacterial community in soil, conditions morel (Morchella spp.) yield and diversity and the richness of soil bacteria is related to the availability of different trace elements (Liu et al, 2017). The bacterial community is dominated by Proteobacteria, Chloroflexi, Actinobacteria and Acidobacteria phyla with high proportions of the genus Pseudomonas during the primordial differentiation stage (Liu et al, 2017).…”

“…yield and diversity and the richness of soil bacteria is related to the availability of different trace elements (Liu et al, 2017). The bacterial community is dominated by Proteobacteria, Chloroflexi, Actinobacteria and Acidobacteria phyla with high proportions of the genus Pseudomonas during the primordial differentiation stage (Liu et al, 2017). Among the postulated roles of the most abundant bacteria in morel substrates, members from the genus Pseudomonas are posited to be involved in morel fructification as further discuss in next section (Liu et al, 2017;Noble et al, 2009).…”

“…The bacterial community is dominated by Proteobacteria, Chloroflexi, Actinobacteria and Acidobacteria phyla with high proportions of the genus Pseudomonas during the primordial differentiation stage (Liu et al, 2017). Among the postulated roles of the most abundant bacteria in morel substrates, members from the genus Pseudomonas are posited to be involved in morel fructification as further discuss in next section (Liu et al, 2017;Noble et al, 2009). Other dominant genera from the phyla Proteobacteria, Geobacter and Rhodoplanes, could help to degrade organic compounds into carbon sources available for the morels (Berlemont and Martiny, 2015) and enhance the availability of metal ions such as iron and manganese for fungi and plants through metal-reducing activity and siderophore production (Jin et al, 2013;Kügler et al, 2019) or simply they are denitrifying bacteria that thrive in the presence of fungal exudates (Zhang et al, 2016a).…”

“…Other dominant genera from the phyla Proteobacteria, Geobacter and Rhodoplanes, could help to degrade organic compounds into carbon sources available for the morels (Berlemont and Martiny, 2015) and enhance the availability of metal ions such as iron and manganese for fungi and plants through metal-reducing activity and siderophore production (Jin et al, 2013;Kügler et al, 2019) or simply they are denitrifying bacteria that thrive in the presence of fungal exudates (Zhang et al, 2016a). Species from the phylum Acidobacteria have been described to play an important role in maintaining the acidic pH value of the soil and therefore, also influence the uptake of trace elements from substrates, whereas bacteria belonging to the phylum Bacteroidetes have been reported to have the capacity to degrade cellulose and chitin (Liu et al, 2017).…”

Effect of microelements on the cytokinins content in mycelial biomass of medicinal mushroom Trametes versicolor (Polyporaceae, Basidiomycota)

“…Позитивний вплив цих мікроелементів на швидкість росту міцелію та утворення склероціїв спостерігалося також при вирощуванні зморшків (Morchella spp.) у культурі (Liu et al, 2017). У наших дослідженнях показано, що ефективність дії іонів металів залежить від того, у якій формі вони вносилися у середовище.…”