The Inhibition of Brassinosteroid-Induced Ethylene Biosynthesis in Etiolated Mung Bean Hypocotyl Segments by 2,3,5-Triiodobenzoic Acid and 2-(p-Chlorophenoxy)-2-methylpropionic Acid

Arteca, Richard N.; Tsai, De Sheng; Mandava, N. Bushan

doi:10.1016/s0176-1617(11)80164-1

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…brassinolide and 24-epibrassinolide inhibit shoot (tiller) elongation in species such as rice (Oryza sativa) (Chon et al 2000) and pea (Pisum sativum) (Kohout et al 1991), respectively. BRs have also been known to stimulate ethylene biosynthesis in various systems (Arteca et al 1991). Since the threshold ethylene concentrations affecting the release of axillary bud from inhibition and subsequent bud elongation may differ among species (Yeang and Hillman 1984), a possible way 5F-HCTS or 28-HCTS inhibit main or primary lateral shoot elongation, and perhaps also inhibit formation of primary lateral shoots, would be through a stimulation of ethylene production.…”

Section: Discussionmentioning

confidence: 99%

Shooting Control in Eucalyptus Grandis × E. urophylla Hybrid: Comparative Effects of 28-Homocastasterone and a 5α-Monofluoro Derivative

Pereira-Netto

Carvalho-Oliveira

Ramírez

et al. 2006

Plant Cell Tiss Organ Cult

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28-Homocastasterone (28-HCTS), a brassinosteroid, was used to treat in vitro-grown shoots of a hybrid between Eucalyptus grandis and E. urophylla. Treated shoots showed enhanced elongation and formation of new main shoots (the shoots originating directly from the initial explant) at low doses. Coincidently, there was reduced elongation and formation of primary lateral shoots (shoots originating from the main shoot). However, a 5a-monofluoro derivative of 28-HCTS (5F-HCTS) was unable to either stimulate elongation or formation of new main shoots, although it did stimulate elongation of primary lateral shoots. In conclusion, it is quite apparent that exogenously supplied brassinosteroids are able to change shooting patterns in Eucalyptus. These findings have practical biotechnological applications, for example on the improvement of micropropagation techniques for clonal propagation of woody angiosperms.

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Section: Discussionmentioning

confidence: 99%

Shooting Control in Eucalyptus Grandis × E. urophylla Hybrid: Comparative Effects of 28-Homocastasterone and a 5α-Monofluoro Derivative

Pereira-Netto

Carvalho-Oliveira

Ramírez

et al. 2006

Plant Cell Tiss Organ Cult

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“…This study indicates that the brassinosteroid signaling decreases the ethylene response via inactivating the MIPS and results in increase in hypocotyl growth. However, treatment with saturating concentration of EBL results in antagonism probably due to a feedback mechanism 5 , 14 , 40 .…”

Section: Discussionmentioning

confidence: 99%

“…This study indicates that the brassinosteroid www.nature.com/scientificreports/ signaling decreases the ethylene response via inactivating the MIPS and results in increase in hypocotyl growth. However, treatment with saturating concentration of EBL results in antagonism probably due to a feedback mechanism 5,14,40 . We checked the response of etiolated seedling in combination of BRZ and MI and found hook formation in etiolated seedlings compared to etiolated seedlings grown on only BRZ which suggests the upstream role of myo-inositol phosphate synthase to brassinosteroid in hook formation substantiating the role of MIPS in ethylene synthesis.…”

Section: Myo-inositol Work Upstream Brassinosteroid Response During mentioning

confidence: 99%

Role of myo-inositol during skotomorphogenesis in Arabidopsis

Sharma

Chaudhary

Khurana

2020

Sci Rep

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Myo-inositol is a ubiquitous metabolite of plants. It is synthesized by a highly conserved enzyme L-myo-inositol phosphate synthase (MIPS; EC 5.5.1.4). Myo-inositol is well characterized during abiotic stress tolerance but its role during growth and development is unclear. In this study, we demonstrate that the apical hook maintenance and hypocotyl growth depend on myo-inositol. We discovered the myo-inositol role during hook formation and its maintenance via ethylene pathway in Arabidopsis by supplementation assays and qPCR. Our results suggest an essential requirement of myo-inositol for mediating the ethylene response and its interaction with brassinosteroid to regulate the skotomorphogenesis. A model is proposed outlining how MIPS regulates apical hook formation and hypocotyl growth.

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Brassinosteroids

Abe

Nishikawa-Koseki

2002

Encyclopedia of Agrochemicals

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Brassinosteroids are a sixth natural plant hormone that plays an essential regulatory role in plant growth and development. As of the year 2000, over 40 different structures of brassinosteroids had been discovered. Recent advances in research on brassinosteroid‐deficient and ‐insensitive mutants from Arabidopsis, pea, and tomato, and their molecular genetic analysis, are opening new insights into the physiology. The research on biosynthesis and metabolism is also growing rapidly. Brassinosteroids are expected to be used in the future for crop production and plant protection as a new type of plant growth regulator.

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The Inhibition of Brassinosteroid-Induced Ethylene Biosynthesis in Etiolated Mung Bean Hypocotyl Segments by 2,3,5-Triiodobenzoic Acid and 2-(p-Chlorophenoxy)-2-methylpropionic Acid

Cited by 10 publications

References 18 publications

Shooting Control in Eucalyptus Grandis × E. urophylla Hybrid: Comparative Effects of 28-Homocastasterone and a 5α-Monofluoro Derivative

Shooting Control in Eucalyptus Grandis × E. urophylla Hybrid: Comparative Effects of 28-Homocastasterone and a 5α-Monofluoro Derivative

Role of myo-inositol during skotomorphogenesis in Arabidopsis

Brassinosteroids

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