| GCF_000872625.1_ViralMultiSegProj28697 | Abaca bunchy top virus | species |
| GCF_000882555.1_ViralProj33141 | Abalone shriveling syndrome-associated virus | species |
| GCF_000848265.1_ViralProj14654 | Abelson murine leukemia virus | species |
| GCF_013267415.1_ASM1326741v1 | Abiotrophia defectiva | species |
| GCF_002270725.1_ViralProj399942 | Abisko virus | species |
| GCF_000889055.1_ViralMultiSegProj48591 | Abutilon Brazil virus | species |
| GCF_000890575.1_ViralMultiSegProj62479 | Abutilon mosaic Bolivia virus | species |
| GCF_000895175.1_ViralMultiSegProj81009 | Abutilon mosaic Brazil virus | species |
| GCF_000847225.1_ViralMultiSegProj14603 | Abutilon mosaic virus | species |
| GCF_001989575.1_ASM198957v1 | Abyssicoccus albus | species |
| GCF_000888735.1_ViralProj60053 | Acanthamoeba polyphaga mimivirus | species |
| GCF_000869685.1_ViralProj18527 | Acanthocystis turfacea chlorella virus 1 | species |
| GCF_000905055.1_ViralProj186432 | Acartia tonsa copepod circovirus | species |
| GCF_004359375.1_ASM435937v1 | Acetilactobacillus jinshanensis | species |
| GCF_002844395.1_ASM284439v1 | Acetivibrio saccincola | species |
| GCF_000196455.1_ASM19645v1 | Acetoanaerobium sticklandii | species |
| GCF_000193495.2_ASM19349v2 | Acetobacter aceti NBRC 14818 | strain |
| GCF_001766235.1_ASM176623v1 | Acetobacter ascendens | species |
| GCF_002173775.1_ASM217377v1 | Acetobacter ascendens | species |
| GCF_001766255.1_ASM176625v1 | Acetobacter ascendens | species |