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Position-dependent changes in phycobilisome abundance in multicellular cyanobacterial filaments revealed by Raman spectral analysis

Ishihara, J.-i.; Imai, Y.

2023-02-15 microbiology Community evaluation
10.1101/2023.02.14.528583 bioRxiv
Show abstract

The one-dimensional filamentous cyanobacterium, Anabaena sp. PCC 7120, shows a simple pattern consisting of two types of cells under the nitrogen-deprived conditions. We found that the microbial pigment composition in differentiated (heterocyst) and undifferentiated cells (vegetative cells) were distinguished by using a Raman microscope. The Raman bands of phycocyanin and allophycocyanin were higher in the vegetative cells than those in the heterocysts. However, these bands were statistically lower in a part of vegetative cells, which were located far from a nearby heterocyst. That is, the pigment composition in the individual cells was affected by a locational information in a filament.

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"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.