Effects of plant hormones and 20-hydroxyecdysone on tomato (Lycopersicum esculentum) seed germination and seedlings growth
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20-hydroxyecdysone (20E) is the major phytoecdysteroid of about 6% of plants. Its role in plant physiology has not been fully elucidated. In this work we studied the effects of 20E application on some morphological and biochemical parameters of tomato,Lycopersicum esculentum, seed during germination and seedling development (5 d). We compared the 20E effects with the action of phytohormones: gibberellic acid (GA3), naftalen acetic acid (NAA), benzyl amino purine (BAP). NAA treatment resulted in marked reduction in shoot length. GA3 treatment promoted maximal shoot elongation. BAP affected negatively shoot length only at late stages, while 20E application stimulated shoot elongation at early stages and reduced it on the fifth day; NAA inhibited root elongation all along the test period. GA3 treatment had no effect on root length, whereas BAP showed strong inhibition on root elongation. On the other hand, 20E showed a weak inhibition of root elongation on the fifth day. As compared to control and to other treatments, NAA and 20E provoked a drastic decrease in protein contents during seedling growth, whereas a high increase was observed under BAP treatment. Electrophoresis revealed that protein bands were not degraded and mobilized after NAA treatment while in control or after 20E and others phytohormones applications, protein patters displayed weak band intensities and some of them were not detected. NAA, GA3 and BAP provoked a decrease in proline content during seedlings, while the effect of 20E on proline levels varied during germination and plantlet development. This work showed that 20E like phytohormones fulfil some bioactive actions during germination and seedlings growth in tomato. Key words: Benzyl amino purine, gibberellic acid, 20-hydroxyecdysone, germination,Lycopersicum esculentum seeds, naftalen acetic acid, proline, protein pattern.
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20E affects germination and stimulates shoot elongation in young tomato (Lycopersicum esculentum) seedlings.
“20E affects germination and stimulates shoot elongation in young tomato (Lycopersicum esculentum) seedlings [50]”
From Ecdysteroids (2021) · cites this paper as [50]
PEs exhibit effects such as the ET 'triple response' in vegetable seeds.
“PEs also exhibit effects such as the ET ‘triple response’ in vegetable seeds [171].”
From Phytoecdysteroids: Distribution, Structural Diversity, Biosynthesis, Activity, and Crosstalk with Phytohormones (2022) · cites this paper as [171]
20-HE at 10−4 M increased germination rate and tomato seedling growth.
“On the other hand, 20-HE (10−4 M) increased germination rate and tomato seedling growth.”
From Phytoecdysteroids: Distribution, Structural Diversity, Biosynthesis, Activity, and Crosstalk with Phytohormones (2022) · cites this paper as [171]
20-HE shows the same results as auxin (naphthalene-3-acetic acid) in tomatoes, with both modulating germination and reducing protein content.
“20-HE shows the same results as auxin (i.e., naphthalene-3-acetic acid) in tomatoes, with both modulating germination and reducing protein content [171].”
From Phytoecdysteroids: Distribution, Structural Diversity, Biosynthesis, Activity, and Crosstalk with Phytohormones (2022) · cites this paper as [171]
In Lycopersicum esculentum, 20-HE and GA3 mutually induce germination rate, shoot-root length, and proline content.
“In Lycopersicum esculentum, 20-HE and GA3 mutually induce germination rate, shoot–root length, and proline content [171].”
From Phytoecdysteroids: Distribution, Structural Diversity, Biosynthesis, Activity, and Crosstalk with Phytohormones (2022) · cites this paper as [171]
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BackgroundPresence of gibberellins in habanero pepper seeds
Ramírez, H., Melendres-Alvarez, A. I., Jasso-Cantú, D., Villarreal-Quintanilla, J. ́., & Zermeño-González, A. (2023) · Acta Horticulturae · doi:10.17660/actahortic.2023.1365.4
Alhaithloul, H. A. S., Awad, N. S., Shoala, T., Alqahtani, M. M., Alzuaibr, F. M., Alasmari, A., & Abdein, M. A. E.-H. (2024) · Research Square · doi:10.21203/rs.3.rs-3016311/v1
- Authors
- Ahmed, B., Mostapha, L., Fouad, S., & Fatiha, C.
- Affiliations
- Abdelmalek Essaâdi University (MA)
- Corresponding author
- Fatiha, Chibi
- Venue
- AFRICAN JOURNAL OF BIOTECHNOLOGY
- Publisher
- Academic Journals
- Published
- 2007-12-31
- Volume
- 6
- Issue
- 24
- Pages
- 2792-2802
- ISSN
- 1684-5315 (ISSN-L)
- OpenAlex
- W2152777681
- Cited by
- 30
- References
- 65
- Citations by year
- 2024: 3 · 2023: 1 · 2022: 3 · 2021: 4 · 2020: 3 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 2 · 2015: 2 · 2014: 1 · 2013: 2
- FWCI
- 1.62
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by
- Locations
- AFRICAN JOURNAL OF BIOTECHNOLOGY (publishedVersion, cc-by)
- Greater South Information System
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Seed Germination and Physiology
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Growth Enhancement Techniques
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
- Keywords
- 20-hydroxyecdysone, phytoecdysteroids, tomato, seed germination, seedling growth, gibberellic acid, naphthaleneacetic acid, benzylaminopurine, shoot elongation, root elongation, proline, seedling protein content
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