Plant Actin Cytoskeleton: New Functions from Old Scaffold

Páez-García, Ana; Sparks, Jeffrey A.; Bang, Louise de; Blancaflor, Elison B.

doi:10.1007/978-3-319-69944-8_6

Cited by 23 publications

(24 citation statements)

References 202 publications

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“…This protein is part of the cellular cytoskeleton and acts in cell division and expansion, vesicle trafficking, organelle movement, and cell growth (Paez‐Garcia, Sparks, de Bang, & Blancaflor, ).…”

Section: Proteins From Chia (Salvia Hispanica L)mentioning

confidence: 99%

“…Actin. This protein is part of the cellular cytoskeleton and acts in cell division and expansion, vesicle trafficking, organelle movement, and cell growth (Paez-Garcia, Sparks, de Bang, & Blancaflor, 2018 Clathrin adaptor complex. This is a complex of proteins that regulates of the movement of proteins and lipids between the cellular membranes and has a role in the signaling and homeostasis, defining the interactions of cells with their surroundings (Jackson et al, 2010).…”

Section: Identified Proteins From Chia Seedsmentioning

confidence: 99%

See 1 more Smart Citation

Chia Seed (Salvia hispanica L.) as a Source of Proteins and Bioactive Peptides with Health Benefits: A Review

Grancieri

Martino

Mejía

2019

Comp Rev Food Sci Food Safe

186

121

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The consumption of chia seed (Salvia hispanica L.) has increased in recent years due its high content of omega‐3 fatty acids and dietary fiber. This seed also has a high concentration of proteins and essential amino acids, becoming a promising source of bioactive peptides. The objective of this review was to identify the composition and the beneficial effects of chia seeds (S. hispanica L.), their proteins, peptides, and their potential impact on human health. The UniProt database was used to identify the chia proteins and their amino acid sequences. The BIOPEP database was used to analyze the peptides's bioactive potential. A total of 20 proteins were cataloged in chia seed, 12 of those were involved in the regular metabolic processes of the plant cells. However, eight proteins were specifically related to production and storage of plant lipids, thus explaining the high concentration of lipids in chia seeds (around 30%), especially omega‐3 fatty acids (around 20%). The analyses of amino acid sequences showed peptides with bioactive potential, including dipeptidyl peptidase‐IV inhibitors, angiotensin‐converting enzyme inhibitors, and antioxidant capacity. These results correlated with the main health benefits of whole chia seed in humans such as antioxidant capacity, and hypotensive, hypoglycemic, and anticholesterolemic effects. Such relation can be associated with chia protein and peptide compositions and therefore needs further investigation in vitro and in vivo.

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Section: Proteins From Chia (Salvia Hispanica L)mentioning

confidence: 99%

Section: Identified Proteins From Chia Seedsmentioning

confidence: 99%

Chia Seed (Salvia hispanica L.) as a Source of Proteins and Bioactive Peptides with Health Benefits: A Review

Grancieri

Martino

Mejía

2019

Comp Rev Food Sci Food Safe

186

121

View full text Add to dashboard Cite

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“…From gamete cell fusion, sperm nuclear migration, gamete nuclear fusion, initiation of embryo and endosperm development, to synergid-endosperm fusion, these individual developmental processes are tightly linked to each other such that these highly orchestrated processes successfully initiate seed development. Cytoskeletons control complex cellular dynamics and it is found that flowering plants have evolved a distinct mechanism, in which F-actin, instead of microtubules, plays the essential role (reviewed in Tominaga and Ito, 2015; Davidson and Wood, 2016; Paez-Garcia et al, 2018). Further investigation of gamete nuclear migration, together with pre- and post-fertilization processes will not only facilitate our knowledge of the dynamic and complex process of plant reproduction but also help gain insights into plant cytoskeleton biology as well as the evolution of plant reproduction.…”

Section: Discussionmentioning

confidence: 99%

Gamete Nuclear Migration in Animals and Plants

Fatema

Ali

et al. 2019

Front. Plant Sci.

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The migration of male and female gamete nuclei to each other in the fertilized egg is a prerequisite for the blending of genetic materials and the initiation of the next generation. Interestingly, many differences have been found in the mechanism of gamete nuclear movement among animals and plants. Female to male gamete nuclear movement in animals and brown algae relies on microtubules. By contrast, in flowering plants, the male gamete nucleus is carried to the female gamete nucleus by the filamentous actin cytoskeleton. As techniques have developed from light, electron, fluorescence, immunofluorescence, and confocal microscopy to live-cell time-lapse imaging using fluorescently labeled proteins, details of these differences in gamete nuclear migration have emerged in a wide range of eukaryotes. Especially, gamete nuclear migration in flowering plants such as Arabidopsis thaliana , rice, maize, and tobacco has been further investigated, and showed high conservation of the mechanism, yet, with differences among these species. Here, with an emphasis on recent developments in flowering plants, we survey gamete nuclear migration in different eukaryotic groups and highlight the differences and similarities among species.

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“…The cellular functions of the actin cytoskeleton are dictated by its spatial organization and dynamics in cells [17]. The organization of actin filaments (also known as microfilaments) in guard cells has been revealed with the approaches of fluorescent phalloidin-staining and immunostaining with anti-actin antibody in fixed guard cells at earlier days [3,18,19], and decoration with actin markers in living guard cells [4,5,6,7,8,9,16,20].…”

Section: Introductionmentioning

confidence: 99%

Guard Cell Microfilament Analyzer Facilitates the Analysis of the Organization and Dynamics of Actin Filaments in Arabidopsis Guard Cells

Diao

Zhang³

et al. 2019

IJMS

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The actin cytoskeleton is involved in regulating stomatal movement, which forms distinct actin arrays within guard cells of stomata with different apertures. How those actin arrays are formed and maintained remains largely unexplored. Elucidation of the dynamic behavior of differently oriented actin filaments in guard cells will enhance our understanding in this regard. Here, we initially developed a program called ‘guard cell microfilament analyzer’ (GCMA) that enables the selection of individual actin filaments and analysis of their orientations semiautomatically in guard cells. We next traced the dynamics of individual actin filaments and performed careful quantification in open and closed stomata. We found that de novo nucleation of actin filaments occurs at both dorsal and ventral sides of guard cells from open and closed stomata. Interestingly, most of the nucleated actin filaments elongate radially and longitudinally in open and closed stomata, respectively. Strikingly, radial filaments tend to form bundles whereas longitudinal filaments tend to be removed by severing and depolymerization in open stomata. By contrast, longitudinal filaments tend to form bundles that are severed less frequently in closed stomata. These observations provide insights into the formation and maintenance of distinct actin arrays in guard cells in stomata of different apertures.

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Plant Actin Cytoskeleton: New Functions from Old Scaffold

Cited by 23 publications

References 202 publications

Chia Seed (Salvia hispanica L.) as a Source of Proteins and Bioactive Peptides with Health Benefits: A Review

Chia Seed (Salvia hispanica L.) as a Source of Proteins and Bioactive Peptides with Health Benefits: A Review

Gamete Nuclear Migration in Animals and Plants

Guard Cell Microfilament Analyzer Facilitates the Analysis of the Organization and Dynamics of Actin Filaments in Arabidopsis Guard Cells

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