title: LIPS database with LIPService: a microscopic image database of intracellular structures in Arabidopsis guard cells.
abstract: BACKGROUND
  Intracellular configuration is an important feature of cell status. Recent advances in microscopic imaging techniques allow us to easily obtain a large number of microscopic images of intracellular structures. In this circumstance, automated microscopic image recognition techniques are of extreme importance to future phenomics/visible screening approaches. However, there was no benchmark microscopic image dataset for intracellular organelles in a specified plant cell type. We previously established the Live Images of Plant Stomata (LIPS) database, a publicly available collection of optical-section images of various intracellular structures of plant guard cells, as a model system of environmental signal perception and transduction. Here we report recent updates to the LIPS database and the establishment of a database table, LIPService.
  
  
  METHODS
  We updated the LIPS dataset and established a new interface named LIPService to promote efficient inspection of intracellular structure configurations. Cell nuclei, microtubules, actin microfilaments, mitochondria, chloroplasts, endoplasmic reticulum, peroxisomes, endosomes, Golgi bodies, and vacuoles can be filtered using probe names or morphometric parameters such as stomatal aperture. In addition to the serial optical sectional images of the original LIPS database, new volume-rendering data for easy web browsing of three-dimensional intracellular structures have been released to allow easy inspection of their configurations or relationships with cell status/morphology. We also demonstrated the utility of the new LIPS image database for automated organelle recognition of images from another plant cell image database with image clustering analyses.
  
  
  CONCLUSIONS
  The updated LIPS database provides a benchmark image dataset for representative intracellular structures in Arabidopsis guard cells. The newly released LIPService allows users to inspect the relationship between organellar three-dimensional configurations and morphometrical parameters.
authors.affiliation: Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8562, Japan. takumi.higaki@gmail.com
authors.forename: Takumi
authors.initials: T
authors.lastname: Higaki
authors.forename: Natsumaro
authors.initials: N
authors.lastname: Kutsuna
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Hasezawa
mesh_terms: D017360:Arabidopsis / Q000737:chemistry*; D016208:Databases, Factual; D042541:Intracellular Space / Q000737:chemistry*; D008853:Microscopy; D054046:Plant Stomata / Q000737:chemistry* / Q000166:cytology; D012984:Software