AI Article Synopsis
- Plants need to communicate properly to grow faster when they wake up from being dormant.
- Scientists found out that a specific protein called LoVIL1 helps open channels that allow this communication by stopping another protein called LoCALS3.
- A new helper protein called LoNFYA7 works with LoVIL1 to make this process happen, which is important for the growth of lily bulbs after dormancy.
Article Abstract
In plants, restoring intercellular communication is required for cell activity in buds during the growth transition from slow to fast growth after dormancy release. However, the epigenetic regulation of this phenomenon is far from understood. Here we demonstrate that lily VERNALIZATION INSENSITIVE 3-LIKE 1 (LoVIL1) confers growth transition by mediating plasmodesmata opening via epigenetic repression of CALLOSE SYNTHASE 3 (LoCALS3). Moreover, we found that a novel transcription factor, NUCLEAR FACTOR Y, SUBUNIT A7 (LoNFYA7), is capable of recruiting the LoVIL1-Polycomb Repressive Complex 2 (PRC2) and enhancing H3K27me3 at the LoCALS3 locus by recognizing the CCAAT cis-element (Cce) of its promoter. The LoNFYA7-LoVIL1 module serves as a key player in orchestrating the phase transition from slow to fast growth in lily bulbs. These studies also indicate that LoVIL1 is a suitable marker for the bud-growth-transition trait following dormancy release in lily cultivars.
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| http://dx.doi.org/10.1038/s41477-023-01492-z | DOI Listing |
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