Light Deficiency Inhibits Growth by Affecting Photosynthesis Efficiency as well as JA and Ethylene Signaling in Endangered Plant Magnolia sinostellata.
Danying Lu,Bin Liu,Mingjie Ren,Chao Wu,Jingjing Ma,Yamei Shen +5 more
- Vol. 10, Iss: 11, pp 2261
TLDR
In this article, the authors performed photosynthesis efficiency analysis and comparative transcriptome analysis in M. sinostellata leaves, which were subjected to shading treatments of different durations.Abstract:
The endangered plant Magnolia sinostellata largely grows in the understory of forest and suffers light deficiency stress. It is generally recognized that the interaction between plant development and growth environment is intricate; however, the underlying molecular regulatory pathways by which light deficiency induced growth inhibition remain obscure. To understand the physiological and molecular mechanisms of plant response to shading caused light deficiency, we performed photosynthesis efficiency analysis and comparative transcriptome analysis in M. sinostellata leaves, which were subjected to shading treatments of different durations. Most of the parameters relevant to the photosynthesis systems were altered as the result of light deficiency treatment, which was also confirmed by the transcriptome analysis. Gene Ontology and KEGG pathway enrichment analyses illustrated that most of differential expression genes (DEGs) were enriched in photosynthesis-related pathways. Light deficiency may have accelerated leaf abscission by impacting the photosynthesis efficiency and hormone signaling. Further, shading could repress the expression of stress responsive transcription factors and R-genes, which confer disease resistance. This study provides valuable insight into light deficiency-induced molecular regulatory pathways in M. sinostellata and offers a theoretical basis for conservation and cultivation improvements of Magnolia and other endangered woody plants.read more
Citations
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The Effects of Growth Modification on Pollen Development in Spring Barley (Hordeum vulgare L.) Genotypes with Contrasting Drought Tolerance
TL;DR: In this paper , the authors performed morphological and cytoembryological analysis of anther perturbations and examined pollen development in two spring barley genotypes that differ in earliness and drought tolerance.
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Effects of Shading and Nitrogen Fertilizer on Growth and Physiology of Gandarusa (Justicia gendarussa Burm. F.)
TL;DR: In this paper, the authors evaluated the effect of shading and nitrogen fertilizer on the growth, photosynthetic parameters, and total sugar content of gandarusa (Justicia gendarussa Burm).
Journal ArticleDOI
Identification of potential light deficiency response regulators in endangered species Magnolia sinostellata
Danying Lu,Bin Xu,Qin Yu,Zhigao Liu,Mingjie Ren,Ya-Ling Wang,Shouzhou Zhang,Chao Wu,Yamei Shen +8 more
TL;DR: Wang et al. as discussed by the authors performed weighted gene co-expression network analysis (WGCNA) to analyze trancriptome data of M. sinostellata leaves subjected to weak light with different time points.
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STAY-GREEN Accelerates Chlorophyll Degradation in Magnolia sinostellata under the Condition of Light Deficiency
TL;DR: In this paper , the STAY-GREEN (MsSGR) gene was found to be one of the most upregulated genes in chloroplasts and its overexpression in Arabidopsis and tobacco accelerated chlorophyll degradation.
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