Fluridone Induces Leaf Bleaching by Inhibiting Pigment Biosynthesis via Downregulated Transcription Levels of Pigment Biosynthetic Genes in Rice (Oryza Sativa L.)

Zou, Zhengshan; Zou, Xiao; Zhao, Songtao; Xia, Chan; Ke, Qian; Wang, Pei; Yin, Changxi

doi:10.1007/s00344-018-9781-3

Cited by 12 publications

(7 citation statements)

References 52 publications

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“…We used seeds of indica rice 9311 ( Oryza sativa L.) in this study. Rice 9311 is a high-quality inbred variety widely used in China [45]. Seeds were sterilized, soaked, and germinated according to Yin et al [15].…”

Section: Methodsmentioning

confidence: 99%

Supraoptimal Cytokinin Content Inhibits Rice Seminal Root Growth by Reducing Root Meristem Size and Cell Length via Increased Ethylene Content

Zou

Shao

Wang

et al. 2018

IJMS

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Cytokinins (CKs), a class of phytohormone, regulate root growth in a dose-dependent manner. A certain threshold content of CK is required for rapid root growth, but supraoptimal CK content inhibits root growth, and the mechanism of this inhibition remains unclear in rice. In this study, treatments of lovastatin (an inhibitor of CK biosynthesis) and kinetin (KT; a synthetic CK) were found to inhibit rice seminal root growth in a dose-dependent manner, suggesting that endogenous CK content is optimal for rapid growth of the seminal root in rice. KT treatment strongly increased ethylene level by upregulating the transcription of ethylene biosynthesis genes. Ethylene produced in response to exogenous KT inhibited rice seminal root growth by reducing meristem size via upregulation of OsIAA3 transcription and reduced cell length by downregulating transcription of cell elongation-related genes. Moreover, the effects of KT treatment on rice seminal root growth, root meristem size and cell length were rescued by treatment with aminoethoxyvinylglycine (an inhibitor of ethylene biosynthesis), which restored ethylene level and transcription levels of OsIAA3 and cell elongation-related genes. Supraoptimal CK content increases ethylene level by promoting ethylene biosynthesis, which in turn inhibits rice seminal root growth by reducing root meristem size and cell length.

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Section: Methodsmentioning

confidence: 99%

Supraoptimal Cytokinin Content Inhibits Rice Seminal Root Growth by Reducing Root Meristem Size and Cell Length via Increased Ethylene Content

Zou

Shao

Wang

et al. 2018

IJMS

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“…Japonica rice Nipponbare (Oryza sativa L.) was used in this study. Rice seeds were sterilized, soaked, and germinated according to the method of Zou et al [38]. The germinated rice seeds were grown in an artificial climate incubator (HP 1500 GS, Ruihua Instrument & Equipment Co., Ltd., Wuhan, China) with a 12-h light (29…”

Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

Nitrogen Deficiency-Induced Decrease in Cytokinins Content Promotes Rice Seminal Root Growth by Promoting Root Meristem Cell Proliferation and Cell Elongation

Wang

Zhu

Zou

et al. 2020

Cells

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Rice (Oryza sativa L.) seedlings grown under nitrogen (N) deficiency conditions show a foraging response characterized by increased root length. However, the mechanism underlying this developmental plasticity is still poorly understood. In this study, the mechanism by which N deficiency influences rice seminal root growth was investigated. The results demonstrated that compared with the control (1 mM N) treatment, N deficiency treatments strongly promoted seminal root growth. However, the N deficiency-induced growth was negated by the application of zeatin, which is a type of cytokinin (CK). Moreover, the promotion of rice seminal root growth was correlated with a decrease in CK content, which was due to the N deficiency-mediated inhibition of CK biosynthesis through the down-regulation of CK biosynthesis genes and an enhancement of CK degradation through the up-regulation of CK degradation genes. In addition, the N deficiency-induced decrease in CK content not only enhanced the root meristem cell proliferation rate by increasing the meristem cell number via the down-regulation of OsIAA3 and up-regulation of root-expressed OsPLTs, but also promoted root cell elongation by up-regulating cell elongation-related genes, including root-specific OsXTHs and OsEXPs. Taken together, our data suggest that an N deficiency-induced decrease in CK content promotes the seminal root growth of rice seedlings by promoting root meristem cell proliferation and cell elongation.

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“…Our results indicate that this plant growth regulator stimulated the biosynthesis of identificed secondary metabolites. Fluridone is commonly known to interfere with carotenoid and chlorophyll biosynthesis by modifying the MEP pathway 51 , 52 . Caffeic acid is one of the key intermediates of the plant phenylpropanoid pathway 53 , 54 .…”

Section: Discussionmentioning

confidence: 99%

The influence of cultivation conditions on the formation of psychoactive salvinorin A, salvinorin B, rosmarinic acid and caffeic acid in Coleus scutellarioides

Jakobina,

Łyczko,

Szumny

et al. 2024

Sci Rep

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Coleus scutellarioides (L.) Benh. is a popular species in the world, known for its characteristic magnificent colourful leaves. The study has revealed that the contents of rosmarinic acid and caffeic acid are significantly higher in the plant tissues cultivated in vivo than when under in vitro conditions. The performed qualitative and quantitative analyses confirmed the presence (whose averaged content) of salvinorin A (6.65 µg/1 g of fresh plant) and salvinorin B (50.46 µg/1 g of fresh plant) in tissues of Coleus scutellarioides (L.) Benh. of ‘Electric lime’ variety. The greatest quantities of these compounds were recorded for plants cultivated in vitro on the MS medium enriched with NAA (naphthyl-1-acetic acid) at a concentration of 0.5 mg∙ dm–3. The research detected differences in the amounts of compounds between plants grown in vivo and those cultivated in vitro. Addition of plant growth regulators into the breeding medium under in vitro conditions was found affecting the amounts of compounds in plant tissues.

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Fluridone Induces Leaf Bleaching by Inhibiting Pigment Biosynthesis via Downregulated Transcription Levels of Pigment Biosynthetic Genes in Rice (Oryza Sativa L.)

Cited by 12 publications

References 52 publications

Supraoptimal Cytokinin Content Inhibits Rice Seminal Root Growth by Reducing Root Meristem Size and Cell Length via Increased Ethylene Content

Supraoptimal Cytokinin Content Inhibits Rice Seminal Root Growth by Reducing Root Meristem Size and Cell Length via Increased Ethylene Content

Nitrogen Deficiency-Induced Decrease in Cytokinins Content Promotes Rice Seminal Root Growth by Promoting Root Meristem Cell Proliferation and Cell Elongation

The influence of cultivation conditions on the formation of psychoactive salvinorin A, salvinorin B, rosmarinic acid and caffeic acid in Coleus scutellarioides

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