The NCBI and EMBL-ENA databases are great for all types of public access data.
Specifically to answer your question, the best and most comprehensive database for PacBio microbial data is the NCTC 3000 collection.
Per their website: "NCTC 3000 is a collaborative Whole Genome Sequencing (WGS) project that was established in 2013 between Public Health England (PHE), the Wellcome Trust Sanger Institute (WTSI) and Pacific Biosciences (PacBio). The project aims to generate 3000 high quality, closed reference genomes from strains within the NCTC collection.
Pacific Biosciences' Single Molecule, Real-Time (SMRT) Sequencing technology achieves very long reads and high consensus accuracy, greatly improving the ability to finish bacterial genomes. And, because the technology can directly detect base modifications, the epigenomes for bacteria can also be obtained with no additional data acquisition, and this data will also be provided."
As of September 2017 they are well on their on their way and have already provided 1700 reference quality genomes and assemblies for public health relevant bacterial strains.
You can browse their sequenced strains to obtain the raw PacBio data or the complete assemblies dependent on your use case for the data. You can browse the collection's data via the Public Health England website:
https://www.phe-culturecollections.org.uk/products/bacteria/nctc-3000-project-a-comprehensive-resource-of-bacterial-type-and-reference-genomes.aspx]
or Wellcome Trust Sanger Institute's website:
http://www.sanger.ac.uk/resources/downloads/bacteria/nctc/
Hi~
thank you very much~ though i need a database for Bacteria, I should've specified it >_<"