Temporal Variability in the Rhizosphere Bacterial and Fungal Community Structure in the Melon Crop Grown in a Closed Hydroponic System

Microbes can establish a pathogenetic or symbiotic relationship with plants in soil and aquatic ecosystems. Although change bacterial fungal community their interaction have been widely studied, little is known about structure hydroponic systems across plant growth stages under different nutrient treatments. This study used next-generation sequencing analysis to assess the temporal changes melon rhizosphere six We found significant microbial composition (especially for bacteria) between (R = 0.25–0.63, p < 0.01) than Proteobacteria dominated at phylum level (59.8% ± 16.1%). The genera Chryseobacterium, Pseudomonas, Massilia flowering pollination stage, while Brevibacillius showed highest relative abundance harvesting stage. However, was by uncultured taxa, likely due application of fungicides (Ridomil MZ). Further, linear regression revealed weak influence on yield quality, fruit weight quality moderately responded Mg K deficiency. Nevertheless, genus Chryseobacterium vegetative stage strong correlation (R2 0.75, 0.05), Brevibacillus, Lysobacter, Bosea late strongly correlated sweetness. Overall, variability bacterial) exceeds treatments given range gradient having yield.