Background The microbiome plays a cardinal role in plant health and performance . Soil attend as a reservoir of microbial variety where works draw microorganisms via beginning exudate . The territory has an important impact on the composition of the rhizosphere microbiome , but greenhouse ornamental plants are commonly grown in soilless substrate . While soil microbiomes have been extensively consider in traditional agriculture to amend works carrying into action , health , and sustainability , information about the microbiomes of soilless substratum is still circumscribed .
Thus , researchers conducted an experiment to explore the microbiome of a peat - based substratum used in container production of Impatiens walleriana , a democratic glasshouse ornamental industrial plant . They investigated the effects of plant phenological point and fertilization layer on the substratum microbiome . Results Impatiens flora grown under low fertilization rate were smaller and produced more flower than plants grown under optimal and eminent fecundation . The top five bacterial phylum present in the substrate were Proteobacteria , Actinobacteria , Bacteriodota , Verrucomicrobiota , and Planctomycetota . Researchers discover a amount of 2,535 amplicon sequence variants ( ASV ) aggroup into 299 genera . The substrate core microbiome was represented by only 1.8 % ( 48 ) of the identified ASV . industrial plant phenological stagecoach and fertilizer levels influenced the microbiome residential area composition . Phenological leg exhibited a stronger influence on microbiome report than fertilizer levels . Differential abundance analytic thinking using DESeq2 identified more ASVs importantly dissemble ( enriched or depleted ) in the high-pitched plant food level at blossoming . As maintain for residential area composition , the effect of the plant phenological phase on microbial community function was stronger than that of fertilizer level . Phenological stage and fertilizer treatments did not affect alpha diversity in the substratum .
In container - grow ornamental plants , the substratum serves as the principal microbic reservoir for the plant , and the plant and agricultural input ( fertilisation ) tone the microbial community social organisation and affair of the substrate . The differences observed in substrate microbiome composition across plant phenological stages were excuse by pH , full organic C ( TOC ) , and fluoride , and across fertilizer levels by pH and phosphate ( PO4 ) . The project provides an initial diversity visibility of the bacteria occurring in soilless substrates , an underexplored source of microbial diversity .
Quijia Pillajo , Juan & Chapin , Laura & Quiroz - Moreno , Cristian & Altland , James & Jones , Michelle . ( 2024 ) . Nutrient handiness and establish phenological stage influence the substrate microbiome in container - grown Impatiens walleriana ' Xtreme Red ' . BMC Plant Biology . 24 . 10.1186 / s12870 - 024 - 04854 - 7 .
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