Light-modulated seminal wavy roots in rice mediated by nitric oxide-dependent signaling

Chen, Hsiang-Wen; Shao, Ko-Hsuan; Wang, Shu‐Jen

doi:10.1007/s00709-015-0762-0

Cited by 8 publications

(6 citation statements)

References 75 publications

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“…The interplay between PHY, PIF3 and NO also seems to coordinate root growth in light, as NO-mediated root growth in light-exposed Arabidopsis seedlings was directly linked to changes in PHYB and PIF3 protein accumulation (Bai et al, 2014). Furthermore, NO was reported to mediate lighttriggered morphological changes in rice seminal roots, acting upstream of auxin and ethylene (Chen et al, 2015 Compared with early events in plant photomorphogenesis, much less is known about the involvement of NO in lightregulated developmental processes that take place later in the plant life cycle. Floral transition, for instance, can be regulated by seasonal changes in day length (i.e.…”

Section: Nitric Oxide and Light Signaling Interplay During Seedling De-etiolationmentioning

confidence: 99%

The light and dark sides of nitric oxide: multifaceted roles of nitric oxide in plant responses to light

Lopes-Oliveira

Oliveira

Kolbert

et al. 2020

Journal of Experimental Botany

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Light drives photosynthesis and informs plants about their surroundings. Regarded as a multifunctional signaling molecule in plants, nitric oxide (NO) has been repeatedly demonstrated to interact with light signaling cascades to control plant growth, development and metabolism. During early plant development, light-triggered NO accumulation counteracts negative regulators of photomorphogenesis and modulates the abundance of, and sensitivity to, plant hormones to promote seed germination and de-etiolation. In photosynthetically active tissues, NO is generated at distinct rates under light or dark conditions and acts at multiple target sites within chloroplasts to regulate photosynthetic reactions. Moreover, changes in NO levels in response to light stress promote plant defenses against oxidative stress under high light or ultraviolet-B radiation. Here we review the literature on the interaction of NO with the complicated light and hormonal signaling cascades controlling plant photomorphogenesis and light stress responses, focusing on the recently identified molecular partners and action mechanisms of NO in these events. We also discuss the versatile role of NO in regulating both photosynthesis and light-dependent stomatal movements, two key determinants of plant carbon gain. The regulation by light of nitrate reductase (NR) is highlighted as vital to adjust NO production in plants living under natural light conditions.

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Section: Nitric Oxide and Light Signaling Interplay During Seedling De-etiolationmentioning

confidence: 99%

The light and dark sides of nitric oxide: multifaceted roles of nitric oxide in plant responses to light

Lopes-Oliveira

Oliveira

Kolbert

et al. 2020

Journal of Experimental Botany

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“…Root circumnutation is regulated by endogenous hormones such as auxin, ethylene, brassinosteroids (BRs), and jasmonic acid (JA) (Woods et al, 1984;Okada and Shimura, 1990;Muller et al, 1998;Jiang et al, 2007;Cai et al, 2018). Additionally, environmental factors such as light, obstacles, gravity, and nutrient substances affect root circumnutation through endogenous hormone network (Okada and Shimura, 1990;Chen et al, 2015;Chai et al, 2020;Taylor et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Interestingly, apart from AT, all of these factors have also been shown to induce root circumnutation. Root circumnutation induced by light, obstacles, and BRs can be completely abolished by inhibitors of ethylene synthesis and/or action, indicating that their regulation of root circumnutation is dependent on the ethylene pathway (Chen et al, 2015;Cai et al, 2018;Taylor et al, 2021). However, it remains unclear whether AT can also regulate root circumnutation through the ethylene pathway.…”

Section: Introductionmentioning

confidence: 99%

Ambient temperature regulates root circumnutation in rice through the ethylene pathway: transcriptome analysis reveals key genes involved

Cai,

Dai,

Jin

et al. 2024

Front. Plant Sci.

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Plant roots are constantly prepared to adjust their growth trajectories to avoid unfavorable environments, and their ability to reorient is particularly crucial for survival. Under laboratory conditions, this continuous reorientation of the root tip is manifested as coiling or waving, which we refer to as root circumnutation. However, the effect of ambient temperature (AT) on root circumnutation remains unexplored. In this study, rice seedlings were employed to assess the impact of varying ATs on root circumnutation. The role of ethylene in mediating root circumnutation under elevated AT was examined using the ethylene biosynthesis inhibitor aminooxyacetic acid (AOA) and the ethylene perception antagonist silver thiosulfate (STS). Furthermore, transcriptome sequencing, weighted gene co-expression network analysis, and real-time quantitative PCR were utilized to analyze gene expressions in rice root tips under four distinct treatments: 25°C, 35°C, 35°C+STS, and 35°C+AOA. As a result, genes associated with ethylene synthesis and signaling (OsACOs and OsERFs), auxin synthesis and transport (OsYUCCA6, OsABCB15, and OsNPFs), cell elongation (OsEXPAs, OsXTHs, OsEGL1, and OsEXORDIUMs), as well as the inhibition of root curling (OsRMC) were identified. Notably, the expression levels of these genes increased with rising temperatures above 25°C. This study is the first to demonstrate that elevated AT can induce root circumnutation in rice via the ethylene pathway and proposes a potential molecular model through the identification of key genes. These findings offer valuable insights into the growth regulation mechanism of plant roots under elevated AT conditions.

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“…Our previous studies indicated light stimuli triggers NO production in TCN1 rice seminal roots and induces wavy roots via the signals of oxylipins, ethylene and auxin in that order. 12 Revealing whether the sensitivities to light stimuli or/and above mentioned cellular signals were different between TCN1 and TNG67 rice varieties could be expected to provide more information for understanding the interactions of genetic and environmental factors (i.e. light) in rice plants.…”

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confidence: 99%

Light-mediated modulation of helix angle and rate of seminal root tip movement determines root morphology of young rice seedlings

Chen

Shao

Wang

2016

Plant Signaling & Behavior

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Seminal root growth is one of the factors to determine rice seedling establishment. Our previous reports showed light can induce Z-type wavy root and coiling root morphology in several rice (Oryza sativa L.) varieties, and the regulated Z-type and unregulated coil seminal roots were resulted by different circumnutational trajectories. Moreover, the light-induced seminal root waving was conducted by an NO-dependent signaling pathway. In order to further reveal the difference of root tip movement between straight and wavy seminal roots; here, the root tip movement trajectories of Tainung 67 variety (TNG67; presented straight root in light conditions) and Taichung Native 1 (TCN1; presented Z-type wavy root in light) were recorded and analyzed in both white light and dark (dim far-red light was applied in dark for taking time-lapse photography) conditions. The results showed the root tip movement of both rice varieties in low intensity of dim far-red light conditions were followed the circumnutation path. However, the stimuli of high intensity of white light would increase the root helix angle in TCN1 seedlings but not in TNG67. In addition, slowing down the rate of root helix was induced by white light treatment in TCN1 but not in TNG67 seedlings. In conclusion, changes of TCN1 rice seminal root morphology from straight to wavy type stimulated by light was resulted by both helix angle increasing and circumnutation rate slowing of root tip movement.

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Light-modulated seminal wavy roots in rice mediated by nitric oxide-dependent signaling

Cited by 8 publications

References 75 publications

The light and dark sides of nitric oxide: multifaceted roles of nitric oxide in plant responses to light

The light and dark sides of nitric oxide: multifaceted roles of nitric oxide in plant responses to light

Ambient temperature regulates root circumnutation in rice through the ethylene pathway: transcriptome analysis reveals key genes involved

Light-mediated modulation of helix angle and rate of seminal root tip movement determines root morphology of young rice seedlings

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