Increased gibberellin biosynthesis in transgenic trees promotes growth, biomass production and xylem fiber length

10.1038/77355 ◽  
2000 ◽  
Vol 18 (7) ◽  
pp. 784-788 ◽  
Author(s):  
Maria E. Eriksson ◽  
Maria Israelsson ◽  
Olof Olsson ◽  
Thomas Moritz
Keyword(s):  
Biomass Production ◽  
Fiber Length ◽  
Gibberellin Biosynthesis ◽  
Transgenic Trees

scholarly journals Overexpression of vesicle-associated membrane protein PttVAP27-17 as a tool to improve biomass production and the overall saccharification yields in Populus trees

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Madhavi Latha Gandla ◽  
Niklas Mähler ◽  
Sacha Escamez ◽  
Tomas Skotare ◽  
Ogonna Obudulu ◽  
...  
Keyword(s):  
Membrane Protein ◽  
Biomass Production ◽  
Enzymatic Saccharification ◽  
Dry Weight ◽  
Populus Tremula ◽  
Transgenic Trees ◽  
Wild Type ◽  
Glucose Yield ◽  
Transgenic Lines ◽  
Wild Type Control

Abstract Background Bioconversion of wood into bioproducts and biofuels is hindered by the recalcitrance of woody raw material to bioprocesses such as enzymatic saccharification. Targeted modification of the chemical composition of the feedstock can improve saccharification but this gain is often abrogated by concomitant reduction in tree growth. Results In this study, we report on transgenic hybrid aspen (Populus tremula × tremuloides) lines that showed potential to increase biomass production both in the greenhouse and after 5 years of growth in the field. The transgenic lines carried an overexpression construct for Populus tremula × tremuloides vesicle-associated membrane protein (VAMP)-associated protein PttVAP27-17 that was selected from a gene-mining program for novel regulators of wood formation. Analytical-scale enzymatic saccharification without any pretreatment revealed for all greenhouse-grown transgenic lines, compared to the wild type, a 20–44% increase in the glucose yield per dry weight after enzymatic saccharification, even though it was statistically significant only for one line. The glucose yield after enzymatic saccharification with a prior hydrothermal pretreatment step with sulfuric acid was not increased in the greenhouse-grown transgenic trees on a dry-weight basis, but increased by 26–50% when calculated on a whole biomass basis in comparison to the wild-type control. Tendencies to increased glucose yields by up to 24% were present on a whole tree biomass basis after acidic pretreatment and enzymatic saccharification also in the transgenic trees grown for 5 years on the field when compared to the wild-type control. Conclusions The results demonstrate the usefulness of gene-mining programs to identify novel genes with the potential to improve biofuel production in tree biotechnology programs. Furthermore, multi-omic analyses, including transcriptomic, proteomic and metabolomic analyses, performed here provide a toolbox for future studies on the function of VAP27 proteins in plants.

scholarly journals Overexpression of Populus trichocarpa CYP85A3 promotes growth and biomass production in transgenic trees

2017 ◽  
Vol 15 (10) ◽  
pp. 1309-1321 ◽  
Author(s):  
Yan-Li Jin ◽  
Ren-Jie Tang ◽  
Hai-Hai Wang ◽  
Chun-Mei Jiang ◽  
Yan Bao ◽  
...  
Keyword(s):  
Biomass Production ◽  
Populus Trichocarpa ◽  
Transgenic Trees

Optimization of biomass production with enhanced bioactive compound content by the medicinal mushroom Ganoderma australe under submerged culture

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
LM Papaspyridi ◽  
E Topakas ◽  
N Aligiannis ◽  
P Christakopoulos ◽  
AL Skaltsounis ◽  
...  
Keyword(s):  
Biomass Production ◽  
Submerged Culture ◽  
Bioactive Compound ◽  
Medicinal Mushroom ◽  
Ganoderma Australe

Biomass production of weeds on the winter wheat stubble in long-term fertilization field experiment

2005 ◽  
Vol 33 (1) ◽  
pp. 251-254 ◽  
Author(s):  
Éva Lehoczky ◽  
András Kismányoky ◽  
Tamás Kismányoky
Keyword(s):  
Winter Wheat ◽  
Field Experiment ◽  
Biomass Production ◽  
Wheat Stubble

Estimation of the Mean Fiber Length of Individual Grease Fleeces

1968 ◽  
Vol 27 (5) ◽  
pp. 1224
Author(s):  
Walter R. Harvey ◽  
Mary E. Hourihan ◽  
Clair E. Terrill
Keyword(s):  
Fiber Length ◽  
The Mean
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