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Advances in the Molecular Mechanisms of Abscisic Acid and Gibberellins Functions in Plants 3.0

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 3726

Special Issue Editor

Prof. Dr. Víctor Quesada

E-Mail Website
Guest Editor
Instituto de Bioingeniería, Universidad Miguel Hernandez de Elche, 3202 Elche, Spain
Interests: genetics; plant development; abiotic stress; arabidopsis; chloroplast biogenesis; mTERF; organelle gene expression
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue continues from our previous Special Issue, "Advances in the Molecular Mechanisms of Abscisic Acid and Gibberellins Functions in Plants".

Gibberellins (GA) and abscisic acid (ABA) are phytohormones that regulate, in an antagonistic way, plant growth as well as several developmental processes, from seed maturation and germination to flowering time, through hypocotyl elongation and root growth. In general, ABA and GA inhibit and promote cell elongation and growth, respectively. Consequently, this mutual antagonism between GA and ABA governs many developmental decisions in plants.

In addition to its role as the growth and development modulator, ABA is primarily known for its role in plants’ response and adaptation to diverse abiotic stress conditions, including cold, heat, drought, salinity and flooding. Remarkably, different studies have elucidated GA’s function in the control of several biological stress-induced processes.

This Special issue will focus on the most recent advances in ABA’s and GA’s functions in the regulation of plant growth and development as well as in their response to abiotic stress. The submission of papers reporting on ABA and GA crosstalk, as well as the integration of GA and ABA action with other plant hormones and/or environmental cues, are especially encouraged. Notwithstanding, contributions on other related topics aimed at developing a better understanding of the molecular mechanisms of ABA and/or GA action in plants are also welcomed, including reviews and original research articles.

Prof. Dr. Víctor Quesada
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

20 pages, 4421 KiB  
Article
Insights into the Genes Involved in ABA Biosynthesis and Perception during Development and Ripening of the Chilean Strawberry Fruit
by María A. Moya-León, Yazmina Stappung, Elena Mattus-Araya and Raúl Herrera
Int. J. Mol. Sci. 2023, 24(10), 8531; https://doi.org/10.3390/ijms24108531 - 10 May 2023
Cited by 2 | Viewed by 1288
Abstract
Hormones act as master ripening regulators. In non-climacteric fruit, ABA plays a key role in ripening. Recently, we confirmed in Fragaria chiloensis fruit that in response to ABA treatment the fruit induces ripening-associated changes such as softening and color development. In consequence of [...] Read more.
Hormones act as master ripening regulators. In non-climacteric fruit, ABA plays a key role in ripening. Recently, we confirmed in Fragaria chiloensis fruit that in response to ABA treatment the fruit induces ripening-associated changes such as softening and color development. In consequence of these phenotypic changes, transcriptional variations associated with cell wall disassembly and anthocyanins biosynthesis were reported. As ABA stimulates the ripening of F. chiloensis fruit, the molecular network involved in ABA metabolism was analyzed. Therefore, the expression level of genes involved in ABA biosynthesis and ABA perception was quantified during the development of the fruit. Four NCED/CCDs and six PYR/PYLs family members were identified in F. chiloensis. Bioinformatics analyses confirmed the existence of key domains related to functional properties. Through RT-qPCR analyses, the level of transcripts was quantified. FcNCED1 codifies a protein that displays crucial functional domains, and the level of transcripts increases as the fruit develops and ripens, in parallel with the increment in ABA. In addition, FcPYL4 codifies for a functional ABA receptor, and its expression follows an incremental pattern during ripening. The study concludes that FcNCED1 is involved in ABA biosynthesis; meanwhile, FcPYL4 participates in ABA perception during the ripening of F. chiloensis fruit. Full article
(This article belongs to the Special Issue Advances in the Molecular Mechanisms of Abscisic Acid and Gibberellins Functions in Plants 3.0)
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16 pages, 4867 KiB  
Article
Functional Study of PgGRAS68-01 Gene Involved in the Regulation of Ginsenoside Biosynthesis in Panax ginseng
by Chang Liu, Kangyu Wang, Ziyi Yun, Wenbo Liu, Mingzhu Zhao, Yanfang Wang, Jian Hu, Tao Liu, Nan Wang, Yi Wang and Meiping Zhang
Int. J. Mol. Sci. 2023, 24(4), 3347; https://doi.org/10.3390/ijms24043347 - 8 Feb 2023
Cited by 7 | Viewed by 1693
Abstract
Ginseng (Panax ginseng C. A. Meyer) is a perennial herb from the genus Panax in the family Araliaceae. It is famous in China and abroad. The biosynthesis of ginsenosides is controlled by structural genes and regulated by transcription factors. GRAS transcription factors [...] Read more.
Ginseng (Panax ginseng C. A. Meyer) is a perennial herb from the genus Panax in the family Araliaceae. It is famous in China and abroad. The biosynthesis of ginsenosides is controlled by structural genes and regulated by transcription factors. GRAS transcription factors are widely found in plants. They can be used as tools to modify plant metabolic pathways by interacting with promoters or regulatory elements of target genes to regulate the expression of target genes, thereby activating the synergistic interaction of multiple genes in metabolic pathways and effectively improving the accumulation of secondary metabolites. However, there are no reports on the involvement of the GRAS gene family in ginsenoside biosynthesis. In this study, the GRAS gene family was located on chromosome 24 pairs in ginseng. Tandem replication and fragment replication also played a key role in the expansion of the GRAS gene family. The PgGRAS68-01 gene closely related to ginsenoside biosynthesis was screened out, and the sequence and expression pattern of the gene were analyzed. The results showed that the expression of PgGRAS68-01 gene was spatio-temporal specific. The full-length sequence of PgGRAS68-01 gene was cloned, and the overexpression vector pBI121-PgGRAS68-01 was constructed. The ginseng seedlings were transformed by Agrobacterium rhifaciens-mediated method. The saponin content in the single root of positive hair root was detected, and the inhibitory role of PgGRAS68-01 in ginsenoside synthesis is reported. Full article
(This article belongs to the Special Issue Advances in the Molecular Mechanisms of Abscisic Acid and Gibberellins Functions in Plants 3.0)
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