Adventitious rooting of Chrysanthemum is stimulated by a low red:far-red ratio

Christiaens, Annelies; Gobin, Bruno; Huylenbroeck, Johan Van; Labeke, Marie-Christine Van

doi:10.1016/j.jplph.2019.03.008

Cited by 26 publications

(20 citation statements)

References 31 publications

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“…The main roots of Rosa plants treated with red light were generally thicker and more branched than those of plants exposed to other light sources. Other studies found that phytochrome, the photoreceptor for red to far-red light responses, plays a role in adventitious root formation through auxinmediated action, and also that blue light receptors interact in this process (Christiaens et al 2019). Lowering the red to far-red ratio and decreasing the phytochrome photostationary state improved adventitious rooting of Chrysanthemum morifolium.…”

Section: Resultsmentioning

confidence: 91%

Vertical Production of ‘Konstancin’ Rose Cuttings in the Growth Chamber Under Led Light

Matysiak

2020

Journal of Horticultural Research

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The impact of light quality generated by light-emitting diodes (LEDs) on the adventitious root formation and cuttings’ quality of rose hip ‘Konstancin’ under controlled conditions in multilevel growth chamber without access to natural light and in the greenhouse was evaluated. In the growth chamber, the lighting was provided by a combination of red and blue LED arrays and white LED tubes, while in the greenhouse, red and blue LED lights were used as a supplement to natural light. The number of rooted cuttings under both growth conditions was not affected by the light conditions generated by LEDs. However, light quality showed significant effects on the biomass production and development of adventitious roots, with the most stimulating red light generated by LEDs. In the growth chamber, the root biomass of the cuttings illuminated with white LEDs supplemented with red LEDs was on average 2.2 times higher than of the cuttings illuminated with white LEDs only. A similar reaction was noted under greenhouse conditions. Supplementation of natural light with red LEDs resulted in 1.7 times increase of the fresh biomass of roots. Both in the growth chamber and in the greenhouse, illumination with red LEDs promoted axillary bud outgrowth. LED lamps can be used in the production of high-quality rose cuttings, both in greenhouses as a complement to natural light and in multilevel rooms as a sole-source lighting for plants.

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Section: Resultsmentioning

confidence: 91%

Vertical Production of ‘Konstancin’ Rose Cuttings in the Growth Chamber Under Led Light

Matysiak

2020

Journal of Horticultural Research

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“…Compared to WL, exposure of tomato seedlings to RL significantly reduced the fresh and dry root weight, while BL did not cause any difference [20]. The lower ratio of red: far-red light stimulated the adventitious roots in Chrysanthemum [21]. The highest weight of newly formed roots in transplanted pomegranate (Punica granatum L.) seedlings was obtained under LED light treatment (L20AP67) [22].…”

Section: Introductionmentioning

confidence: 93%

Consequences of LED Lights on Root Morphological Traits and Compounds Accumulation in Sarcandra glabra Seedlings

Xie

Tarin

Chen

et al. 2021

IJMS

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This study evaluated the effects of different light spectra (white light; WL, blue light; BL and red light; RL) on the root morphological traits and metabolites accumulation and biosynthesis in Sarcandra glabra. We performed transcriptomic and metabolomic profiling by RNA-seq and ultra-performance liquid chromatography−electrospray ionization−tandem mass spectrometry (UPLC-ESI-MS/MS), respectively. When morphological features were compared to WL, BL substantially increased under-ground fresh weight, root length, root surface area, and root volume, while RL inhibited these indices. A total of 433 metabolites were identified, of which 40, 18, and 68 compounds differentially accumulated in roots under WL (WG) vs. roots under BL (BG), WG vs. roots under RL (RG), and RG vs. BG, respectively. In addition, the contents of sinapyl alcohol, sinapic acid, fraxetin, and 6-methylcoumarin decreased significantly in BG and RG. In contrast, chlorogenic acid, rosmarinyl glucoside, quercitrin and quercetin were increased considerably in BG. Furthermore, the contents of eight terpenoids compounds significantly reduced in BG. Following transcriptomic profiling, several key genes related to biosynthesis of phenylpropanoid-derived and terpenoids metabolites were differentially expressed, such as caffeic acid 3-O-methyltransferase) (COMT), hydroxycinnamoyl-CoA shikimate hydroxycinnamoyl transferase (HCT), O-methyltransferase (OMT), and 1-deoxy-D-xylulose-5-phosphate synthetase (DXS). In summary, our findings showed that BL was suitable for growth and accumulation of bioactive metabolites in root tissue of S. glabra. Exposure to a higher ratio of BL might have the potential to improve the production and quality of S. glabra seedlings, but this needs to be confirmed further.

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“…Mechanisms of plant nutritional factors and effects of controlled atmosphere storage are largely unexplored. In addition to the effects of light intensity and integral and of CO 2 on the C gain of cuttings, distinct effects of light spectrum may involve changes of auxin homeostasis and signaling (Ruedell et al, 2015;Christiaens et al, 2019). Dark-induced carbohydrate depletion in cuttings can impair AR formation via reduced C source.…”

Section: Critical Environmental Inputsmentioning

confidence: 99%

Overcoming Physiological Bottlenecks of Leaf Vitality and Root Development in Cuttings: A Systemic Perspective

Druege

2020

Front. Plant Sci.

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Each year, billions of ornamental young plants are produced worldwide from cuttings that are harvested from stock plants and planted to form adventitious roots. Depending on the plant genotype, the maturation of the cutting, and the particular environment, which is complex and often involves intermediate storage of cuttings under dark conditions and shipping between different climate regions, induced senescence or abscission of leaves and insufficient root development can impair the success of propagation and the quality of generated young plants. Recent findings on the molecular and physiological control of leaf vitality and adventitious root formation are integrated into a systemic perspective on improved physiologically-based control of cutting propagation. The homeostasis and signal transduction of the wound responsive plant hormones ethylene and jasmonic acid, of auxin, cytokinins and strigolactones, and the carbon-nitrogen source-sink balance in cuttings are considered as important processes that are both, highly responsive to environmental inputs and decisive for the development of cuttings. Important modules and bottlenecks of cutting function are identified. Critical environmental inputs at stock plant and cutting level are highlighted and physiological outputs that can be used as quality attributes to monitor the functional capacity of cuttings and as response parameters to optimize the cutting environment are discussed. Facing the great genetic diversity of ornamental crops, a physiologically targeted approach is proposed to define bottleneck-specific plant groups. Components from the field of machine learning may help to mathematically describe the complex environmental response of specific plant species.

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Adventitious rooting of Chrysanthemum is stimulated by a low red:far-red ratio

Cited by 26 publications

References 31 publications

Vertical Production of ‘Konstancin’ Rose Cuttings in the Growth Chamber Under Led Light

Vertical Production of ‘Konstancin’ Rose Cuttings in the Growth Chamber Under Led Light

Consequences of LED Lights on Root Morphological Traits and Compounds Accumulation in Sarcandra glabra Seedlings

Overcoming Physiological Bottlenecks of Leaf Vitality and Root Development in Cuttings: A Systemic Perspective

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