Related by context. Frequent words. (Click for all words.) 56 nitrogen fixing 55 duckweed 54 mosses 53 Chlamydomonas 53 Sedum 53 microbial ecology 53 symbiont 53 slime molds 53 photosynthesizing 52 mycorrhizal fungi 52 moss 52 angiosperms 52 Penicillium 52 photosynthetic 52 salt tolerant 52 secondary metabolites 51 Scientists theorize 51 diatoms 51 mycelium 51 biomimetics 51 photosynthetic organisms 51 chloroplasts 51 tunicates 51 bioactives 51 RNA sequences 51 elegans 51 nutrient uptake 51 prokaryotes 51 Geobacter 51 bioenergy crops 51 euphorbia 51 sphagnum moss 51 genomic sequence 51 lichen 51 fruiting bodies 50 protozoan 50 deciduous shrubs 50 wildflower garden 50 alga 50 Photosynthesis 50 chloroplast 50 Fungal 50 fungal pathogen 50 decaying vegetation 50 metagenomic 50 woody plants 50 cotoneaster 50 microbial genomes 50 yew trees 50 humic acid 49 tansy 49 prokaryotic 49 nitrogen fixation 49 catmint 49 chlorella 49 Cyanobacteria 49 biogeography 49 Euphorbia 49 Biomimetic 49 endophyte 49 phytoremediation 49 synthetic polymers 48 single celled 48 epiphytes 48 seedheads 48 unicellular 48 organisms 48 Lignin 48 taxonomist 48 cattail 48 human microbiome 48 fungi 48 mycobacteria 48 lichens 48 ornamental grass 48 xylem 48 trumpet vine 48 phyto 48 californica 48 Germination 48 indole 48 genomic sequencing 48 symbionts 48 conifer trees 48 cellulose fibers 48 perennial herb 47 bioaccumulation 47 artemisia 47 micro organism 47 diatom 47 ageratum 47 terpenes 47 hemicellulose 47 photochemistry 47 Arabidopsis 47 shade tolerant 47 lignocellulose 47 mullein 47 shrub roses 47 antimicrobial compounds 47 symbiotic bacteria