An Update on the Role of the Actin Cytoskeleton in Plasmodesmata: A Focus on Formins

Diao, Min; Huang, Shanjin

doi:10.3389/fpls.2021.647123

Cited by 13 publications

(11 citation statements)

References 49 publications

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“…Chaperones and RNA helicases may be involved in this process [ 27 , 28 ]. This process may also involve RNA-binding proteins that function as carriers, and their receptors, as well as actin and myosin that can alter plasmodesmal pore size [ 27 , 29 , 30 ]. In our recent study, we found that a catalytic subunit of the RNA exosome, Arabidopsis Ribosomal RNA-Processing Protein 44A (AtRRP44A), controls KN1 and STM mRNA trafficking between cells [ 8 ].…”

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confidence: 99%

Trafficking and localization of KNOTTED1 related mRNAs in shoot meristems

Kitagawa

Jackson

2022

Communicative & Integrative Biology

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Multicellular organisms use transcripts and proteins as signaling molecules for cell-to-cell communication. Maize KNOTTED1 (KN1) was the first homeodomain transcription factor identified in plants, and functions in maintaining shoot stem cells. KN1 acts non-cell autonomously, and both its messenger RNA (mRNA) and protein traffic between cells through intercellular nanochannels called plasmodesmata. KN1 protein and mRNA trafficking are regulated by a chaperonin subunit and a catalytic subunit of the RNA exosome, respectively. These studies suggest that the function of KN1 in stem cell regulation requires the cell-to-cell transport of both its protein and mRNA. However, in situ hybridization experiments published 25 years ago suggested that KN1 mRNA was missing from the epidermal (L1) layer of shoot meristems, suggesting that only the KN1 protein could traffic. Here, we show evidence that KN1 mRNA is present at a low level in L1 cells of maize meristems, supporting an idea that both KN1 protein and mRNA traffic to the L1 layer. We also summarize mRNA expression patterns of KN1 homologs in diverse angiosperm species, and discuss KN1 trafficking mechanisms.

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confidence: 99%

Trafficking and localization of KNOTTED1 related mRNAs in shoot meristems

Kitagawa

Jackson

2022

Communicative & Integrative Biology

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“…As shown in the GO enrichment plot (Figure 6), the transcribed sORFs with enriched GO terms related to actin were detected in both varieties. Actin mainly functions in cellular physiological processes in plants including cell growth, cytokinesis, cell division, and several intracellular trafficking events (Diao and Huang, 2021). This indicates that the transcribed sORFs of C. sativus might play a role in growth and development regulations.…”

Section: Resultsmentioning

confidence: 99%

In silicocomparative RNA-seq analysis reveals varietal-specific intergenic small open reading frames inCucumis sativusL.

Chieng

Tan

Teo

2022

Preprint

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Small open reading frames (sORFs) have been reported to play important roles in growth, regulation of morphogenesis, and abiotic stress responses in various plant species. However, their sequences and functions remain poorly understood in many plant species including Cucumis sativus. Cucumis sativus (commonly known as cucumber) is Asia's fourth most important vegetable and the second most important crop in Western Europe. The breeding of climate-resilient cucumbers is of great importance to ensure their sustainability under extreme climate conditions. In this study, we aim to isolate the intergenic sORFs from C. sativus var. hardwickii genome and determine their sequence diversity and expression profiles in C. sativus var. hardwickii and different cultivars of C. sativus var. sativus using bioinformatics tools. We identified a total of 50,191 coding sORFs with coding potential (coding sORFs) from C. sativus var. hardwickii genome. In addition, 1,311 transcribed sORFs were detected in RNA-seq datasets of C. sativus var. hardwickii and shared homology to sequences deposited in the cucumber EST database, and among these, 91 transcribed sORFs with translation potential were detected. A total of 629 high-confident C. sativus-specific sORFs were identified in both varieties. Varietal-specific transcribed sORFs were also identified in C. sativus var. hardwickii (87) and C. sativus var. sativus (2,906). Furthermore, cultivar- and tissue-specific transcribed sORFs were identified in different cultivars and tissue samples. The findings of this study provide insight into sequence diversity and expression patterns of sORFs in C. sativus, which could help in developing climate-resilient cucumbers.

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“…tropomyosin-like proteins) [14]. W PD zidentyfikowano także forminę [15]. Poza tym w PD stwierdzono występowanie ARP2/3 (ang.…”

Section: Błony Pdunclassified

Komunikacja symplastowa – nadkomórkowy system regulacji różnicowania komórek

Godel-Jędrychowska

Kurczyńska²

2022

Postepy Biochem

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Plazmodesmy (PD) odkryte ponad 120 lat temu, ciągle stanowią zagadkę w związku z ich rolą w regulacji różnicowania komórek roślinnych. Badania ostatnich lat zweryfikowały nasze wyobrażenie nie tylko o budowie PD, ale także ich roli w wymianie informacji między komórkami organizmu roślinnego. Udział PD w przemieszczaniu się białek, w tym czynników transkrypcyjnych, hormonów oraz różnego rodzaju RNA wskazuje, że odgrywają istotną rolę w regulacji różnicowania komórek. Przemieszczanie się cząsteczek poprzez PD nazywane jest komunikacją symplastową, a jej ograniczenia lub brak stanowią istotny element kontrolujący kierunek różnicowania się komórek.

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An Update on the Role of the Actin Cytoskeleton in Plasmodesmata: A Focus on Formins

Cited by 13 publications

References 49 publications

Trafficking and localization of KNOTTED1 related mRNAs in shoot meristems

Trafficking and localization of KNOTTED1 related mRNAs in shoot meristems

In silicocomparative RNA-seq analysis reveals varietal-specific intergenic small open reading frames inCucumis sativusL.

Komunikacja symplastowa – nadkomórkowy system regulacji różnicowania komórek

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