Latex dilution reaction during the tapping flow course of Hevea brasiliensis and the effect of Ethrel stimulation
文献类型: 外文期刊
作者: An, Feng 1 ; Cai, Xiuqing 3 ; Rookes, James 4 ; Xie, Guishui 1 ; Zou, Zhi 1 ; Cahill, David 4 ; Kong, Lingxue 2 ;
作者机构: 1.Chinese Acad Trop Agr Sci, Danzhou Invest & Expt Stn Trop Crops, Minist Agr, Rubber Res Inst, Danzhou 571737, Hainan, Peoples R China
2.Deakin Univ, Inst Frontier Mat, Geelong, Vic 3216, Australia
3.Hainan Univ, Coll Agron, Haikou 570228, Peoples R China
4.Deakin Univ, Sch Life & Environm Sci, Geelong, Vic 3216, Australia
关键词: Aquaporins;Latex dilution;Osmoregulation;Osmotic potential;Phloem turgor pressure;Tapping latex flow
期刊名称:BRAZILIAN JOURNAL OF BOTANY ( 影响因子:1.296; 五年影响因子:1.394 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The latex dilution reaction during the tapping flow course has been well documented and associated with the facilitation of tapping latex flow. However, its underlying mechanism has not experimentally examined. The latex total solid content, osmotic potential and phloem turgor pressure change during the tapping flow course were simultaneously measured to investigate the cause of water movement during the tapping flow course. It was found that there are three different stages for the laticifer water equilibrium during the tapping flow course. The tappinginduced rapid turgor pressure drop is the cause of the first stage water influx into laticifers, while osmoregulation prevails during water exchange in the second and third stages of tapping flow. Meanwhile, aquaporin expressions were, for the first time, investigated during the tapping flow course. The rapid transcript up-regulation of HbPIP1, HbPIP2; 1 and HbPIP2; 3 contributes to the latex dilution reaction. However, their activity gating cannot be ruled out. Ethrel stimulation can significantly dilute the corresponding latex fractions during the tapping flow course due to its up-regulations of HbPIP1, HbPIP2; 1 and HbPIP2; 3. Nevertheless, the latex dilution reaction pattern for the Ethrel treated trees did not change, except for a lower degree of dilution compared with the un-treated trees. All these results suggest that both phloem turgor pressure and aquaporins are involved in the latex dilution reaction during the tapping flow course.
- 相关文献
作者其他论文 更多>>
-
Integrative Analysis of Oleosin Genes Provides Insights into Lineage-Specific Family Evolution in Brassicales
作者:Zou, Zhi;Zhang, Li;Zhao, Yongguo;Zhang, Li;Zhao, Yongguo
关键词:whole-genome duplication; gene expansion; evolutionary analysis; synteny analysis; orthogroup; divergence
-
Functional Analysis of the HbREF1 Promoter from Hevea brasiliensis and Its Response to Phytohormones
作者:Chen, Lin-Tao;Tang, Yan-Qiong;Peng, Shi-Qing;Chen, Lin-Tao;Guo, Dong;Zhu, Jia-Hong;Wang, Ying;Li, Hui-Liang;Peng, Shi-Qing;Guo, Dong;Zhu, Jia-Hong;Wang, Ying;Li, Hui-Liang;Peng, Shi-Qing;An, Feng
关键词:Hevea brasiliensis; rubber elongation factor; promoter; transcriptional regulation; phytohormone
-
TIP aquaporins in Cyperus esculentus: genome-wide identification, expression profiles, subcellular localizations, and interaction patterns
作者:Zou, Zhi;Zheng, Yujiao;Chang, Lili;Zou, Liangping;Zhao, Yongguo;Zhang, Li;Zhao, Yongguo;Min, Yi
关键词:Tigernut; Tonoplast intrinsic protein; Synteny analysis; Expression divergence; Subcellular localization; Protein interaction
-
Molecular characterization of oleosin genes in Cyperus esculentus, a Cyperaceae plant producing oil in underground tubers
作者:Zou, Zhi;Zheng, Yujiao;Zhang, Zhongtian;Xiao, Yanhua;Xie, Zhengnan;Chang, Lili;Zhang, Li;Zhao, Yongguo;Zhang, Li;Zhao, Yongguo
关键词:Oil crop; Oil accumulation; Expression divergence; Orthogroup; Protein interaction; Synteny analysis
-
Molecular characterization of oleosin genes in Cyperus esculentus, a Cyperaceae plant producing oil in underground tubers
作者:Zou, Zhi;Zheng, Yujiao;Zhang, Zhongtian;Xiao, Yanhua;Xie, Zhengnan;Chang, Lili;Zhang, Li;Zhao, Yongguo;Zhang, Li;Zhao, Yongguo
关键词:Oil crop; Oil accumulation; Expression divergence; Orthogroup; Protein interaction; Synteny analysis
-
Analysis of Carica papaya Informs Lineage-Specific Evolution of the Aquaporin (AQP) Family in Brassicales
作者:Zou, Zhi;Zheng, Yujiao;Xie, Zhengnan
关键词:Caricaceae; Brassicaceae; orthogroup; synteny; fruit development
-
Comparative Transcriptome and Metabolome Analysis of Rubber Trees (Hevea brasiliensis Muell. Arg.) Response to Aluminum Stress
作者:Ma, Xiaowei;Cheng, Linlin;Peng, Wentao;Xie, Guishui;Yang, Zongming;An, Feng;Ma, Xiaowei;Liu, Zifan;Yang, Zongming;Wang, Ying
关键词:aluminum; abiotic stress; Hevea brasiliensis; RNA-seq; metabolites; organic acids; detoxification