scholarly journals Dynamics of the Shade-Avoidance Response in Arabidopsis

2013 ◽  
Vol 163 (1) ◽  
pp. 331-353 ◽  
Author(s):  
Andrea Ciolfi ◽  
Giovanna Sessa ◽  
Massimiliano Sassi ◽  
Marco Possenti ◽  
Samanta Salvucci ◽  
...  
Keyword(s):  
Avoidance Response ◽  
Shade Avoidance

scholarly journals Genetic mapping of natural variation in a shade avoidance response: ELF3 is the candidate gene for a QTL in hypocotyl growth regulation

2010 ◽  
Vol 62 (1) ◽  
pp. 167-176 ◽  
Author(s):  
M. Paula Coluccio ◽  
Sabrina E. Sanchez ◽  
Luciana Kasulin ◽  
Marcelo J. Yanovsky ◽  
Javier F. Botto
Keyword(s):  
Genetic Mapping ◽  
Candidate Gene ◽  
Avoidance Response ◽  
Natural Variation ◽  
Growth Regulation ◽  
Shade Avoidance ◽  
Hypocotyl Growth

scholarly journals Multiple Pathways in the Control of the Shade Avoidance Response

Plants ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 102 ◽  
Author(s):  
Giovanna Sessa ◽  
Monica Carabelli ◽  
Marco Possenti ◽  
Giorgio Morelli ◽  
Ida Ruberti
Keyword(s):  
Avoidance Response ◽  
Light Quality ◽  
Developmental Stages ◽  
Relative Fitness ◽  
Shade Avoidance ◽  
Signaling Mechanisms ◽  
Similarities And Differences ◽  
Growth Development ◽  
Molecular Description ◽  
New Strategies

To detect the presence of neighboring vegetation, shade-avoiding plants have evolved the ability to perceive and integrate multiple signals. Among them, changes in light quality and quantity are central to elicit and regulate the shade avoidance response. Here, we describe recent progresses in the comprehension of the signaling mechanisms underlying the shade avoidance response, focusing on Arabidopsis, because most of our knowledge derives from studies conducted on this model plant. Shade avoidance is an adaptive response that results in phenotypes with a high relative fitness in individual plants growing within dense vegetation. However, it affects the growth, development, and yield of crops, and the design of new strategies aimed at attenuating shade avoidance at defined developmental stages and/or in specific organs in high-density crop plantings is a major challenge for the future. For this reason, in this review, we also report on recent advances in the molecular description of the shade avoidance response in crops, such as maize and tomato, and discuss their similarities and differences with Arabidopsis.

Auxin Coordinates Shoot and Root Development During Shade Avoidance Response

2014 ◽  
pp. 389-412 ◽  
Author(s):  
Valentino Ruzza ◽  
Giovanna Sessa ◽  
Massimiliano Sassi ◽  
Giorgio Morelli ◽  
Ida Ruberti
Keyword(s):  
Avoidance Response ◽  
Root Development ◽  
Shade Avoidance

Maximum elongation growth promoted as a shade-avoidance response by blue light is related to deactivated phytochrome: a comparison with red light in four microgreen species

2020 ◽  
Vol 100 (3) ◽  
pp. 314-326 ◽  
Author(s):  
Yun Kong ◽  
Katherine Schiestel ◽  
Youbin Zheng
Keyword(s):  
Avoidance Response ◽  
Blue Light ◽  
Plant Traits ◽  
Red Light ◽  
Elongation Growth ◽  
Extension Rate ◽  
Shade Avoidance ◽  
Maximum Elongation ◽  
Hypocotyl Length ◽  
Response Sensitivity

To clarify detailed patterns of responses to blue light associated with decreasing phytochrome activity, the growth and morphology traits of arugula, cabbage, mustard, and kale microgreens were compared under the treatments: (1) R, pure red light; (2) B, pure blue light; (3) BRF0, (4) BRF2, (5) BRF4, and (6) BRF6: unpure blue lights created by mixing B with low-level (6%) R, and further adding 0, 2, 4, and 6 μmol m−2 s−1 of far-red light, respectively. The calculated phytochrome photostationary state (PPS) value, indicating phytochrome activity, gradually decreased in the order of R (0.89), BRF0 (0.69), BRF2 (0.65), BRF4 (0.63), BRF6 (0.60), and B (0.50). Generally, the elongation growth (including stem extension rate, hypocotyl length, or petiole length) under blue lights increased with the decreasing PPS values, showing the highest and lowest sensitivity for arugula and mustard, respectively. However, the elongation promoted by blue lights gradually became saturated once the PPS values decreased below 0.60, a level which deactivates phytochrome. Other plant traits, such as biomass allocation and plant color, varied with increasing shade-avoidance responses to blue lights with decreasing PPS values relative to R, and these traits reached saturation at a similar PPS value as elongation. The response sensitivity was highest in elongation growth for arugula and cabbage, and highest in plant color for kale and mustard. This suggests that deactivated phytochrome contributes to the maximum elongation promotion as a shade-avoidance response induced by blue light, although the response sensitivity varies with plant traits and species.

scholarly journals Light intensity modulates the regulatory network of the shade avoidance response in Arabidopsis

2014 ◽  
Vol 111 (17) ◽  
pp. 6515-6520 ◽  
Author(s):  
M. Hersch ◽  
S. Lorrain ◽  
M. de Wit ◽  
M. Trevisan ◽  
K. Ljung ◽  
...  
Keyword(s):  
Light Intensity ◽  
Avoidance Response ◽  
Regulatory Network ◽  
Shade Avoidance

scholarly journals A Genomic Analysis of the Shade Avoidance Response in Arabidopsis

2003 ◽  
Vol 133 (4) ◽  
pp. 1617-1629 ◽  
Author(s):  
Paul Francis Devlin ◽  
Marcelo Javier Yanovsky ◽  
Steve A. Kay
Keyword(s):  
Avoidance Response ◽  
Genomic Analysis ◽  
Shade Avoidance

scholarly journals The unique function of theArabidopsiscircadian clock genePRR5in the regulation of shade avoidance response

2013 ◽  
Vol 8 (4) ◽  
pp. e23534 ◽  
Author(s):  
Masahide Takase ◽  
Tsuyoshi Mizoguchi ◽  
Toshiaki Kozuka ◽  
Hirokazu Tsukaya
Keyword(s):  
Avoidance Response ◽  
Unique Function ◽  
Shade Avoidance

Does the shade avoidance response contribute to the critical period for weed control in maize (Zea mays)?

Weed Research ◽  
2009 ◽  
Vol 49 (6) ◽  
pp. 563-571 ◽  
Author(s):  
E R PAGE ◽  
M TOLLENAAR ◽  
E A LEE ◽  
L LUKENS ◽  
C J SWANTON
Keyword(s):  
Zea Mays ◽  
Avoidance Response ◽  
Weed Control ◽  
Critical Period ◽  
Shade Avoidance

scholarly journals RNA sequencing-based exploration of the effects of far-red light on lncRNAs involved in the shade-avoidance response of D. officinale

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10769
Author(s):  
Hansheng Li ◽  
Wei Ye ◽  
Yaqian Wang ◽  
Xiaohui Chen ◽  
Yan Fang ◽  
...  
Keyword(s):  
Avoidance Response ◽  
Rna Sequencing ◽  
Production Efficiency ◽  
Stem Elongation ◽  
Red Light ◽  
Differentially Expressed ◽  
Control Group ◽  
Shade Avoidance ◽  
Biochemical Analyses ◽  
Experimental Group

Dendrobium officinale (D. officinale) is a valuable medicinal plant with a low natural survival rate, and its shade-avoidance response to far-red light is as an important strategy used by the plant to improve its production efficiency. However, the lncRNAs that play roles in the shade-avoidance response of D. officinale have not yet been investigated. This study found that an appropriate proportion of far-red light can have several effects, including increasing the leaf area and accelerating stem elongation, in D. officinale. The effects of different far-red light treatments on D. officinale were analysed by RNA sequencing technology, and a total of 69 and 78 lncRNAs were differentially expressed in experimental group 1 (FR1) versus the control group (CK) (FR1-CK) and in experimental group 4 (FR4) versus the CK (FR4-CK), respectively. According to GO and KEGG analyses, most of the differentially expressed lncRNA targets are involved in the membrane, some metabolic pathways, hormone signal transduction, and O-methyltransferase activity, among other functions. Physiological and biochemical analyses showed that far-red light promoted the accumulation of flavonoids, alkaloids, carotenoids and polysaccharides in D. officinale. The effect of far-red light on D. officinalemight be closely related to the cell membrane and Ca2+ transduction. Based on a Cytoscape analysis and previous research, this study also found that MSTRG.38867.1, MSTRG.69319.1, and MSTRG.66273.1, among other components, might participate in the far-red light signalling network through their targets and thus regulate the shade-avoidance response of D. officinale. These findings will provide new insights into the shade-avoidance response of D. officinale.

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