scholarly journals Uniconazole-induced starch accumulation in the bioenergy crop duckweed (Landoltia punctata) I: transcriptome analysis of the effects of uniconazole on chlorophyll and endogenous hormone biosynthesis

2015 ◽  
Vol 8 (1) ◽  
Author(s):  
Yang Liu ◽  
Yang Fang ◽  
Mengjun Huang ◽  
Yanling Jin ◽  
Jiaolong Sun ◽  
...  
Keyword(s):  
Transcriptome Analysis ◽  
Endogenous Hormone ◽  
Starch Accumulation ◽  
Bioenergy Crop ◽  
Hormone Biosynthesis

scholarly journals Morpho-Histology, Endogenous Hormone Dynamics and Transcriptome Profiling in Dacrydium Pectinatum during Male Cone Development

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1598
Author(s):  
Wenju Lu ◽  
Enbo Wang ◽  
Weijuan Zhou ◽  
Yifan Li ◽  
Zhaoji Li ◽  
...  
Keyword(s):  
Pollen Mother Cell ◽  
Mother Cell ◽  
Cell Formation ◽  
Transcriptome Profiling ◽  
Endogenous Hormone ◽  
Male Cone ◽  
Transcriptome Database ◽  
Cone Development ◽  
Hormone Biosynthesis ◽  
External Forces

Dacrydium pectinatum de Laubenfels is a perennial gymnosperm species dominant in tropical montane rain forests. Due to severe damages by excessive deforestation, typhoons, and other external forces, the population of the species has been significantly reduced. Furthermore, its natural regeneration is poor. To better understand the male cone development in D. pectinatum, we examined the morphological and anatomical changes, analyzed the endogenous hormone dynamics, and profiled gene expression. The morpho-histological observations suggest that the development of D. pectinatum male cone can be largely divided into four stages: microspore primordium formation (April to May), microspore sac and pollen mother cell formation (July to November), pollen mother cell division (January), and pollen grain formation (February). The levels of gibberellins (GA), auxin (IAA), abscisic Acid (ABA), cytokinin (CTK), and jasmonic acid (JA) fluctuated during the process of male cone development. The first transcriptome database for a Dacrydium species was generated, revealing >70,000 unigene sequences. Differential expression analyses revealed several floral and hormone biosynthesis and signal transduction genes that could be critical for male cone development. Our study provides new insights on the cone development in D. pectinatum and the foundation for male cone induction with hormones and studies of factors contributing to the species’ low rate of seed germination.

scholarly journals Transcriptome Analysis of Wounding in the Model Grass Lolium temulentum

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 780
Author(s):  
James E. Dombrowski ◽  
Brent A. Kronmiller ◽  
Vicky Hollenbeck ◽  
Ruth C. Martin
Keyword(s):  
Transcriptome Analysis ◽  
Proteinase Inhibitors ◽  
Wrky Transcription Factors ◽  
Lolium Temulentum ◽  
Mitogen Activated Protein ◽  
Hormone Biosynthesis ◽  
Model Grass ◽  
Molecular Components ◽  
Rapid Regrowth

For forage and turf grasses, wounding is a predominant stress that often results in extensive loss of vegetative tissues followed by rapid regrowth. Currently, little is known concerning the perception, signaling, or molecular responses associated with wound stress in forage- and turf-related grasses. A transcriptome analysis of Lolium temulentum plants subjected to severe wounding revealed 9413 upregulated and 7704 downregulated, distinct, differentially expressed genes (DEGs). Categories related to signaling, transcription, and response to stimuli were enriched in the upregulated DEGs. Specifically, sequences annotated as enzymes involved in hormone biosynthesis/action and cell wall modifications, mitogen-activated protein kinases, WRKY transcription factors, proteinase inhibitors, and pathogen defense-related DEGs were identified. Surprisingly, DEGs related to heat shock and chaperones were more prevalent in the downregulated DEGs when compared with the upregulated DEGs. This wound transcriptome analysis is the first step in identifying the molecular components and pathways used by grasses in response to wounding. The information gained from the analysis will provide a valuable molecular resource that will be used to develop approaches that can improve the recovery, regrowth, and long-term fitness of forage and turf grasses before/after cutting or grazing.

scholarly journals Improving biomass and starch accumulation of bioenergy crop duckweed (Landoltia punctata) by abscisic acid application

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Yang Liu ◽  
Xiaoyi Chen ◽  
Xinhui Wang ◽  
Yang Fang ◽  
Mengjun Huang ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Starch Accumulation ◽  
Bioenergy Crop

scholarly journals Transcriptome analysis of the oil-rich seed of the bioenergy crop Jatropha curcas L

BMC Genomics ◽  
2010 ◽  
Vol 11 (1) ◽  
pp. 462 ◽  
Author(s):  
Gustavo GL Costa ◽  
Kiara C Cardoso ◽  
Luís EV Del Bem ◽  
Aline C Lima ◽  
Muciana AS Cunha ◽  
...  
Keyword(s):  
Transcriptome Analysis ◽  
Jatropha Curcas ◽  
Bioenergy Crop ◽  
Jatropha Curcas L

Abscisic Acid-Induced Starch Accumulation in Bioenergy Crop Duckweed Spirodela polyrrhiza

2016 ◽  
Vol 10 (2) ◽  
pp. 417-426 ◽  
Author(s):  
Xuezhi Wang ◽  
Weihua Cui ◽  
Weiwu Hu ◽  
Chuanping Feng
Keyword(s):  
Abscisic Acid ◽  
Starch Accumulation ◽  
Bioenergy Crop ◽  
Spirodela Polyrrhiza

scholarly journals Effects of Elevated Root-Zone CO2 on Root Morphology and Nitrogen Metabolism Revealed by Physiological and Transcriptome Analysis in Oriental Melon Seedling Roots

2020 ◽  
Vol 21 (3) ◽  
pp. 803
Author(s):  
Xinyu Chen ◽  
Zepeng Yin ◽  
Yang Yin ◽  
Chuanqiang Xu ◽  
Wanxin Wang ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Nitrogen Metabolism ◽  
Transcriptome Analysis ◽  
Root Zone ◽  
Cell Structure ◽  
Starch Accumulation ◽  
Cell Aging ◽  
Glutathione Metabolism ◽  
Short Term ◽  
T1 And T2

Rhizosphere CO2 is vital for crop growth, development, and productivity. However, the mechanisms of plants’ responses to root-zone CO2 are unclear. Oriental melons are sensitive to root-zone gas, often encountering high root-zone CO2 during cultivation. We investigated root growth and nitrogen metabolism in oriental melons under T1 (0.5%) and T2 (1.0%) root-zone CO2 concentrations using physiology and comparative transcriptome analysis. T1 and T2 increased root vigor and the nitrogen content in the short term. With increased treatment time and CO2 concentration, root inhibition increased, characterized by decreased root absorption, incomplete root cell structure, accelerated starch accumulation and hydrolysis, and cell aging. We identified 1280 and 1042 differentially expressed genes from T1 and T2, respectively, compared with 0.037% CO2-grown plants. Among them, 683 co-expressed genes are involved in stress resistance and nitrogen metabolism (enhanced phenylpropanoid biosynthesis, hormone signal transduction, glutathione metabolism, and starch and sucrose metabolism). Nitrogen metabolism gene expression, enzyme activity, and nitrogen content analyses showed that short-term elevated root-zone CO2 mainly regulated plant nitrogen metabolism post-transcriptionally, and directly inhibited it transcriptionally in the long term. These findings provided a basis for further investigation of nitrogen regulation by candidate genes in oriental melons under elevated root-zone CO2.

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