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Guen Tae Park is a plant researcher credited as first author of a 2014 study of MOS7, a nuclear pore complex component, in Arabidopsis thaliana. The paper lists a Department of Biological Sciences affiliation at Seoul National University; its contribution statement credits Park with research design, experiments, data analysis and writing.

The team connected loss of MOS7 to defective microtubule organization during mitosis, impaired pollen and ovule development, and arrest of embryos. Introducing a functional tagged MOS7 copy rescued the reproductive defects, linking the phenotype to the disrupted gene. This established a role for nuclear-pore machinery in reproductive cell division, beyond its familiar transport setting.^[ref]

MOS7 is a nuclear-pore-associated protein of Arabidopsis thaliana required for normal reproductive cell division. Although the nuclear pore complex is familiar as a transport gateway, some of its components also have roles during mitosis, when nuclear organization is extensively rebuilt.

Guen Tae Park and colleagues examined a loss-of-function MOS7 mutant. Developing pollen showed disorganized microtubules, defective spindle apparatus formation and abnormal division; female reproductive development and embryonic development were also affected. A transgene carrying functional MOS7 rescued the reproductive defects, making the attribution to the disrupted gene stronger than a comparison of unrelated abnormal and normal plants.^[ref] The experiments establish a requirement for MOS7, while leaving details of its molecular action on the division machinery open.