Bright fluorescent vacuolar marker lines allow vacuolar tracing across multiple tissues and stress conditions in rice

Research output: Contribution to journalJournal articleResearchpeer-review

  • Yiran Cao
  • Wenguo Cai
  • Xiaofei Chen
  • Mingjiao Chen
  • Jianjun Chu
  • Wanqi Liang
  • Persson, Staffan
  • Zengyu Liu
  • Dabing Zhang

The vacuole is indispensable for cells to maintain their water potential and to respond to environmental changes. Nevertheless, investigations of vacuole morphology and its functions have been limited to Arabidopsis thaliana with few studies in the model crop rice (Oryza sativa). Here, we report the establishment of bright rice vacuole fluorescent reporter systems using OsTIP1;1, a tonoplast water channel protein, fused to either an enhanced green fluorescent protein or an mCherry red fluorescent protein. We used the corresponding transgenic rice lines to trace the vacuole morphology in roots, leaves, anthers, and pollen grains. Notably, we observed dynamic changes in vacuole morphologies in pollen and root epidermis that corresponded to their developmental states as well as vacuole shape alterations in response to abiotic stresses. Our results indicate that the application of our vacuole markers may aid in understanding rice vacuole function and structure across different tissues and environmental conditions in rice.

Original languageEnglish
Article number4203
JournalInternational Journal of Molecular Sciences
Volume21
Issue number12
Number of pages16
ISSN1661-6596
DOIs
Publication statusPublished - 2020
Externally publishedYes

    Research areas

  • Fluorescent marker, Oryza sativa, Tonoplast intrinsic protein, Vacuole

ID: 260353911