A novel cysteine-rich peptide regulates cell expansion in the tobacco pistil and influences its final size

Brito, Mónica; DePaoli, Henrique C.; Cossalter, Viviani; Avanci, Nilton César; Ferreira, Pedro Boscariol; Azevedo, Mariana S.; Strini, Edward José; Quiapim, Andréa Carla; Goldman, Gustavo Henrique; Peres, Lázaro Eustáquio Pereira; Goldman, Maria Helena S.

doi:10.1016/j.plantsci.2018.09.002

Cited by 4 publications

(2 citation statements)

References 68 publications

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“…Plant peptides can be mainly divided into the precursor-derived and nonprecursor-derived peptides (Tavormina et al, 2015). Most of the plant peptides already studied are derived from precursor proteins (Brito et al, 2018). Similarly, we observed that the most of peptides were derived from the precursor proteins in tobacco in this study.…”

Section: Discussionsupporting

confidence: 77%

Peptidomics analysis reveals stress response proteins involved in the establishment of seed vigor in tobacco

Wang,

Zhang,

Niu

et al. 2024

J. Seed Sci.

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Seed vigor of tobacco (Nicotiana tabacum L.) is established during seed development stage, while its regulators remain largely unknown. Here, a comparative peptidomics analysis of the developing seeds was conducted to reveal the regulators involving the establishment of tobacco seed vigor. The most significant difference of seed vigor was observed between seeds harvested at 20 and 30 days after pollination (DAP), and then the corresponding seeds were collected separately for peptidomics analysis. A total of 2932 and 2812 nonredundant peptides were identified in seeds harvested at 20 and 30 DAP, respectively. In which, 349 differentially expressed peptides (DEPs) were characterized. To explore the potential functions of these DEPs, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were further analyzed according to their precursor proteins. Most DEP precursor proteins were involved in response to abiotic stimulus, response to water, and protein processing in endoplasmic reticulum. Further, the peptides derived from the precursor proteins, such as late embryogenesis abundant (LEA) protein, heat shock protein, peroxiredoxin, and globulin proteins, may regulates the establishment of seed vigor by influencing reactive oxygen species. The results provide a foundation for further exploration of the peptides functions on the establishment of seed vigor in tobacco.

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Section: Discussionsupporting

confidence: 77%

Peptidomics analysis reveals stress response proteins involved in the establishment of seed vigor in tobacco

Wang,

Zhang,

Niu

et al. 2024

J. Seed Sci.

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“…Unlike for animals, only a few examples of functional SEPs have been described in plants. They have been shown to regulate plant programmed cell death (Blanvillain et al, 2011), root growth and development (Casson et al, 2002; Chen et al, 2020), cell proliferation and expansion (Brito et al, 2018; Ikeuchi et al, 2011), nodule formation (Rohrig et al, 2002), and pollen germination (Dong et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

FAMOSS, a conserved 41-aa peptide involved in plant tip growth regulation

Mamaeva

Kniazev

Sedlov

et al. 2021

Preprint

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Recent evidence shows that small open reading frame (smORF; <100 codons)-encoded peptides (SEPs) containing transmembrane domains are preadapted to be progenitors of novel functional genes. A dozen of such SEPs translated from long non-coding RNAs (lncRNAs) are already functionally characterised in animals. However, functional plant lncRNA-smORF-coded peptides are not yet described. Here, we report detailed functional characterization of a 41-aa peptide encoded by lncRNA-smORFs in the moss Physcomitrium patens, which was named “FAst-growing MOSS” (FAMOSS). We found that the FAMOSS interacts with the Rab-type small GTPase proteins and its overexpression leads to faster moss growth rate and more intensive vesicular transport in apical cells, while its knockout results in the opposite effect. The FAMOSS contains a predicted transmembrane domain and possible orthologs from streptophyta algae to flowering plants have a very conserved structure. Thus, the FAMOSS peptide is a previously unknown conserved player of Rab-mediated processes in plants. Our findings are in line with functional studies of transmembrane SEPs in animals and prove the principles of SEPs evolution. This study provides new insights into functions of plant lncRNA-smORFs.

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Mobile Signaling Peptides: Secret Molecular Messengers with a Mighty Role in Plant Life

Pandita¹,

Bhat

Wani

et al. 2023

J Plant Growth Regul

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Adaptive mechanisms for unfavorable environments have evolved in plants for thousands of generations, primarily in the form of endogenous chemical signals and the coordination of physiological processes. Signaling peptides (SPs) are diverse molecular messengers in various stress responses which have been identified in different plant families. SPs are recognized by the membrane-localized receptors and co-receptors, leading to downstream signaling for various plant responses. Progress in in silico analysis, along with other factors, has increased our understanding of the signaling peptide-mediated regulatory mechanisms underlying the entire plant life cycle. SPs mediate both long-distance (root-to-shoot-to-root) and local cell–cell communication via vascular system to communicate and coordinate with plant organs at distant locations. During abiotic stress, SPs inside plant cells perceive stress signals and transfer information at short and long physiological ranges through the signal transduction pathway, causing stress-responsive gene expression. SPs interact with pathogens and mediate cell-to-cell communication via signaling pathways. There are intriguing relationships between phytohormones and the secondary signaling cascades which are mediated by SPs. During biotic or abiotic stress, different peptides trigger jasmonic acid, ethylene, and ABA signaling, involving several secondary messengers. These messengers mediate the stress response via shared signaling components of ROS, Ca2+, and MAPKs, and they modify the gene expression for different phytohormones. In this review, we highlight current knowledge on the role of signaling peptides in plant adaptation, growth, and development. We aim to analyze the SP-receptor interactions and the significance of crosstalk between a few sample SPs and phytohormones. Potential directions on how scientists can use this information for crop improvement are also suggested.

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A novel cysteine-rich peptide regulates cell expansion in the tobacco pistil and influences its final size

Cited by 4 publications

References 68 publications

Peptidomics analysis reveals stress response proteins involved in the establishment of seed vigor in tobacco

Peptidomics analysis reveals stress response proteins involved in the establishment of seed vigor in tobacco

FAMOSS, a conserved 41-aa peptide involved in plant tip growth regulation

Mobile Signaling Peptides: Secret Molecular Messengers with a Mighty Role in Plant Life

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