The Regulation of CIN-like TCP Transcription Factors

Abstract

TEOSINTE BRANCHED1/CYCLOIDEA/PROLIFERATING CELL FACTOR 1 and 2 (TCP) family proteins are the plant-specific transcription factors extensively participating in diverse developmental processes by integrating external cues with internal signals. The roles of CINCINNATA (CIN)-like TCPs are conserved in control of the morphology and size of leaves, petal development, trichome formation and plant flowering. The tight regulation of CIN-like TCP activity at transcriptional and post-transcriptional levels are central for plant developmental plasticity in response to the ever-changing environmental conditions. In this review, we summarize recent progresses with regard to the function and regulation of CIN-like TCPs. CIN-like TCPs are regulated by abiotic and biotic cues including light, temperature and pathogens. They are also finely controlled by microRNA319 (miRNA319), chromatin remodeling complexes and auxin homeostasis. The protein degradation plays critical roles in tightly controlling the activity of CIN-like TCPs as well.

Genome-Wide Identification, Characterization and Expression Analysis of TCP Transcription Factors in Petunia

“…Moreover, Arabidopsis CIN-TCPs have been implicated in the regulation of floral organ development and flowering time [20,21]. Recent advances in the understanding of the function and regulation of CIN-like TCP genes have been summarized by Qin et al [22]. To our knowledge, the CYC/TB1 clade mainly plays a prominent role in axillary meristem development [3].…”

The Effect of the Anticipated Nuclear Localization Sequence of ‘Candidatus Phytoplasma mali’ SAP11-like Protein on Localization of the Protein and Destabilization of TCP Transcription Factor

“…The activity of TCPs is controlled by chromatin remodeling complexes BRM, TIE1, or SPL [ 41 ]. It was proposed that the TCP4 interacts with a BRM chromatin-remodeling complex to regulate leaf maturation and modification of the chromatin state of promoters of common targets such as ARR16 and ARR6.…”

“…This finding is similar to the recessive WUS mutant Arabidopsis, which is evident in the apparent repeated initiation and outgrowth of vegetative meristem from the axils of previously produced leaves and the generation of a “stop-and-go”-like pattern of auxiliary bud growth, giving rise to a bushy appearance [ 46 ]. Because WUS expression positively regulates the SNF2 chromatin-remodeling ATPase SPLAYED (SYD), which is required for maintenance of the stable stem cell pool [ 47 ], it is possible that SAP11 may induce alterations of growth patterns by disturbing the transcriptional reprogramming of key meristem switching genes (such as WUS and SYD), possibly via TCPs, which are finely controlled by microRNA319 (miRNA319), chromatin remodeling complexes, and auxin homeostasis [ 41 ]. However, this speculation needs to be experimentally identified.…”

A chloroplast heat shock protein modulates growth and abiotic stress response in creeping bentgrass

“…The multiple tcp mutants exhibit serrated and wave leaves (Koyama, Mitsuda, Seki, Shinozaki, & Ohme-Takagi, 2010). TCPs also regulate cell proliferation, elongation, expansion and differentiation (Lan & Qin, 2020). In this study, 5 TCPs were down-regulated, while only 1 TCP was up-regulated in TG plants (Figure 9e, Table S1), suggesting that HSP26.8 negatively affects the expression level of TCPs and thus causes the small size and twisted leaf phenotypes in HSP26.8 overexpressing TG creeping bentgrass plants (Figure 3 and Figure S2).…”