Effects of extracts on the colour of thermally modified Populus tomentosa Carr.

2021 ◽  
Author(s):  
Zhenju Bi ◽  
Jingyi Yuan ◽  
Jeffrey J. Morrell ◽  
Li Yan
Keyword(s):  
Populus Tomentosa ◽  
Populus Tomentosa Carr

scholarly journals Induction of PtoCDKB and PtoCYCB transcription by temperature during cambium reactivation in Populus tomentosa Carr.

2009 ◽  
Vol 60 (9) ◽  
pp. 2621-2630 ◽  
Author(s):  
W.-F. Li ◽  
Q. Ding ◽  
J.-J. Chen ◽  
K.-M. Cui ◽  
X.-Q. He
Keyword(s):  
Populus Tomentosa ◽  
Populus Tomentosa Carr

Effects of NaCl on shoot growth, transpiration, ion compartmentation, and transport in regenerated plants of Populus euphratica and Populus tomentosa

2003 ◽  
Vol 33 (6) ◽  
pp. 967-975 ◽  
Author(s):  
Shaoliang Chen ◽  
Jinke Li ◽  
Shasheng Wang ◽  
Eberhard Fritz ◽  
Aloys Hüttermann ◽  
...  
Keyword(s):  
Shoot Growth ◽  
Populus Euphratica ◽  
Populus Tomentosa ◽  
Salt Transport ◽  
Relative Growth Rates ◽  
Regenerated Plants ◽  
Salt Exclusion ◽  
Populus Tomentosa Carr ◽  
Uptake And Transport ◽  
Ion Compartmentation

The effect of a 20-day NaCl treatment on shoot growth, transpiration, ion uptake and transport, and intracellular ion compartmentation was investigated in regenerated plants of Populus euphratica Oliv. and Populus tomentosa Carr. Plants watered with 100 mM NaCl for 8 days and then 200 mM NaCl for 12 days exhibited soil NaCl concentrations of 60 and 95 mM, respectively. Unit transpiration rates and relative growth rates of P. tomentosa were restricted more by salinity as compared with P. euphratica. Salinized P. tomentosa exhibited leaf necrosis whereas no damage was seen in stressed P. euphratica. Compared with P. tomentosa, P. euphratica had considerably lower rates of net root uptake and transport of salt ions (Na+ and Cl–) to the shoots under salinity. The relatively lower unit transpiration rates of P. euphratica and the lower salt concentrations in the xylem of salinized P. euphratica contribute to its greater capacity for salt exclusion. X-ray microanalysis showed that P. euphratica had a greater ability to restrict radial salt transport in roots by blocking apoplasmic salt transport and sequestering more Cl– in cortical vacuoles. In addition, P. euphratica maintained higher K+ uptake and transport than P. tomentosa in the presence of high external Na+ concentrations.

A comparative study of the stomata and PM2.5particles on the leaf surface of Chinese white poplar (Populus tomentosa Carr.) in different polluted places

2015 ◽  
Vol 35 (22) ◽  
Author(s):  
石婕 SHI Jie ◽  
刘庆倩 LIU Qingqian ◽  
安海龙 AN Hailong ◽  
曹学慧 CAO Xuehui ◽  
刘超 LIU Chao ◽  
...  
Keyword(s):  
Comparative Study ◽  
Leaf Surface ◽  
Populus Tomentosa ◽  
White Poplar ◽  
Chinese White ◽  
Populus Tomentosa Carr ◽  
Chinese White Poplar

scholarly journals Identification of microRNAs Involved in Regeneration of the Secondary Vascular System in Populus tomentosa Carr

2016 ◽  
Vol 7 ◽  
Author(s):  
Fang Tang ◽  
Hairong Wei ◽  
Shutang Zhao ◽  
Lijuan Wang ◽  
Huanquan Zheng ◽  
...  
Keyword(s):  
Vascular System ◽  
Populus Tomentosa ◽  
Populus Tomentosa Carr

Antiinflammatory effects of Tremulacin, a Salicin-related substance isolated from Populus tomentosa Carr. leaves

Phytomedicine ◽  
1994 ◽  
Vol 1 (3) ◽  
pp. 209-211 ◽  
Author(s):  
G.F. Cheng ◽  
D.P. Liu ◽  
D.X. Yang ◽  
K.Q. He ◽  
J.Y. Bai ◽  
...  
Keyword(s):  
Populus Tomentosa ◽  
Related Substance ◽  
Populus Tomentosa Carr ◽  
Antiinflammatory Effects

scholarly journals Characterization and functional analysis of the Hydroxycinnamoyl-CoA: shikimate hydroxycinnamoyl transferase (HCT) gene family in poplar

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10741
Author(s):  
Nan Chao ◽  
Qi Qi ◽  
Shuang Li ◽  
Brent Ruan ◽  
Xiangning Jiang ◽  
...  
Keyword(s):  
Shikimic Acid ◽  
Lignin Content ◽  
Expression Profiles ◽  
Populus Trichocarpa ◽  
Functional Divergence ◽  
Lignin Biosynthesis ◽  
Populus Tomentosa ◽  
Motif Analysis ◽  
Monolignol Biosynthesis ◽  
Populus Tomentosa Carr

Hydroxycinnamoyl-CoA: shikimate hydroxycinnamoyl transferase (HCT) divides the mass flux to H, G and S units in monolignol biosynthesis and affects lignin content. Ten HCT homologs were identified in the Populus trichocarpa (Torr. & Gray) genome. Both genome duplication and tandem duplication resulted in the expansion of HCT orthologs in Populus. Comprehensive analysis including motif analysis, phylogenetic analysis, expression profiles and co-expression analysis revealed the divergence and putative function of these candidate PoptrHCTs. PoptrHCT1 and 2 were identified as likely involved in lignin biosynthesis. PoptrHCT9 and 10- are likely to be involved in plant development and the response to cold stress. Similar functional divergence was also identified in Populus tomentosa Carr. Enzymatic assay of PtoHCT1 showed that PtoHCT1 was able to synthesize caffeoyl shikimate using caffeoyl-CoA and shikimic acid as substrates.

scholarly journals Antioxidative low molecular weight extractives from triploid Populus tomentosa xylem

BioResources ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 232-242
Author(s):  
Chuan-Ling Si ◽  
Yi-Yuan Lu ◽  
Yu Zhang ◽  
Jie Xu ◽  
Pan-Pan Qin ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Paper Industry ◽  
Radical Scavenging ◽  
Good Alternative ◽  
Populus Tomentosa ◽  
Low Molecular Weight ◽  
Phytochemical Investigation ◽  
Populus Tomentosa Carr ◽  
Triploid Populus Tomentosa ◽  
Bioactive Potential

Triploid Populus tomentosa Carr. (Salicaceae) is a good alternative to meet the increasing need of the global pulp and paper industry. Meanwhile, the xylem of this species could be a useful bioresource to develop low molecular extractives with significant bioactive potential. In the present work, a phytochemical investigation on aqueous EtOH extractives of Triploid P. tomentosa xylem, by systematical performance of Sephadex LH-20 open column chromatography and Thin Layer Chromatography (TLC), resulted in the isolation of two phenolic acids (ρ-coumaric acid (I) and caffeic acid (II)), two flavonoids (apigenin (III) and luteolin (IV)), and three phenolic glucosides (salicortin (V), salireposide (VI) and populoside (VII)). The structure elucidation and determination of the isolated extractives were based on their spectroscopical data and physiochemical evidences. This was the first time to report the low molecular weight extractives of Triploid P. tomentosa. Various low molecular weight extractives fromTriploid P. tomentosa xylem exhibited significant antioxidative activities by DPPH and hydroxyl radical scavenging assays.

Sign in / Sign up

Export Citation Format

Share Document