The Experts below are selected from a list of 12 Experts worldwide ranked by ideXlab platform

Geng Xiao-na - One of the best experts on this subject based on the ideXlab platform.

  • Relationship Between Auxin and Plant Apical Dominance
    Journal of Hebei Normal University, 2008
    Co-Authors: Geng Xiao-na
    Abstract:

    Auxin is the leading factor of controlling Apical Dominance.The Plant hormone auxin,synthesised in the shoot apex,moves down along the stem and inhibits lateral branching,does not travel upward into the branches,so it must act indirectly;auxin may acts by regulating the production of a second messenger which is transported into the bud.The best documented candidates for such second messengers are cytokinin and a novel graft transmissible signal(MAX-dependent hormone).However,recent study on auxin transport suggests a possible additional mechanism whereby auxin transport in the stem prevents the establishment of auxin transport out of the branches,thus inhibiting their growth.Auxin acts in xylem-associated or medullary cells to mediate Apical Dominance.

Qiu Yun-fei - One of the best experts on this subject based on the ideXlab platform.

  • Plant Apical Dominance simulation based on pressure-flow model
    Computer Engineering and Design, 2012
    Co-Authors: Qiu Yun-fei
    Abstract:

    Most Apical Dominance simulation methods of existing research are not combined with Plant physiology properly.Aimed at these limitations,in order to build model to represent rules of Apical Dominance and improve the authenticity of simulation,an Plant Apical Dominance simulation method based on pressure-flow model is proposed.This method builds hormonal transport and distribute model with pressure-flow model and computes the distribution and transportation of hormonal between apex and sub-branch.Apex produces hormonal,causes pressure between apex and sub-branch and impels the hormonal transport and distribute among organs.Using virtual organ as the unit to describe Plant,all the virtual organs work parallelized.Organs grow under the control of distributed hormonal and hormonal valve and achieve the final statement of growth.Growth engine feedback physiological change to Plant structure.Rendering algorithm reads the attributes of virtual organs to render 3D graph of visual Plant.

Baichen Wang - One of the best experts on this subject based on the ideXlab platform.

  • proteomic analysis points to a role for rad23 in Apical Dominance in pinus sylvestris var mongolica
    Plant Molecular Biology Reporter, 2013
    Co-Authors: Deli Ning, Tianchong Lu, Chuanping Yang, Baichen Wang
    Abstract:

    In higher Plants, Apical Dominance is the phenomenon whereby the main central stem is dominant over other side stems. In the present study, the natural loss of Apical Dominance in a Pinus sylvestris var. mongolica mutant was characterized. The mutant lacked an obvious trunk, but exhibited a large number of side stems, short internodes and leaves, and dwarfism. Cell biological analyses indicated that the meristem was changed dramatically in the mutant, with irregular cell arrangements, and no obvious layers of meristem and mature tissue. The loss of Apical Dominance in the mutant Plant was accompanied by a significant decrease in auxin (A) and cytokinin (C) content compared to wild type, and increased C/A values. Proteomic analysis of the Apical buds using 2DE-ESI-MS/MS at different stages of development (including dormancy, bud break, 10 days after bud break, and 15 days after bud break) revealed 49 proteins that were significantly changed in abundance compared to wild type. These proteins were involved in stress response, energy production and conversion, post-translation modification and amino acid transport and metabolism, as well as many other complex biological processes. Among the identified proteins, Rad23, an abscisic acid- and stress-induced protein, and cytoplasmic aconitate hydratase likely participate in ABA responses, Fe2+ ion homeostasis and the ubiquitin/26S proteasome pathway to regulate Apical Dominance of buds. Rad23, in particular, appears likely to play an important role in the complicated mechanism of Apical Dominance of Pinus sylvestris var. mongolica. This work provides important insights into this process as well as forming a basis for the further study of Plant Apical Dominance.

Deli Ning - One of the best experts on this subject based on the ideXlab platform.

  • proteomic analysis points to a role for rad23 in Apical Dominance in pinus sylvestris var mongolica
    Plant Molecular Biology Reporter, 2013
    Co-Authors: Deli Ning, Tianchong Lu, Chuanping Yang, Baichen Wang
    Abstract:

    In higher Plants, Apical Dominance is the phenomenon whereby the main central stem is dominant over other side stems. In the present study, the natural loss of Apical Dominance in a Pinus sylvestris var. mongolica mutant was characterized. The mutant lacked an obvious trunk, but exhibited a large number of side stems, short internodes and leaves, and dwarfism. Cell biological analyses indicated that the meristem was changed dramatically in the mutant, with irregular cell arrangements, and no obvious layers of meristem and mature tissue. The loss of Apical Dominance in the mutant Plant was accompanied by a significant decrease in auxin (A) and cytokinin (C) content compared to wild type, and increased C/A values. Proteomic analysis of the Apical buds using 2DE-ESI-MS/MS at different stages of development (including dormancy, bud break, 10 days after bud break, and 15 days after bud break) revealed 49 proteins that were significantly changed in abundance compared to wild type. These proteins were involved in stress response, energy production and conversion, post-translation modification and amino acid transport and metabolism, as well as many other complex biological processes. Among the identified proteins, Rad23, an abscisic acid- and stress-induced protein, and cytoplasmic aconitate hydratase likely participate in ABA responses, Fe2+ ion homeostasis and the ubiquitin/26S proteasome pathway to regulate Apical Dominance of buds. Rad23, in particular, appears likely to play an important role in the complicated mechanism of Apical Dominance of Pinus sylvestris var. mongolica. This work provides important insights into this process as well as forming a basis for the further study of Plant Apical Dominance.

Wang Jian-guang - One of the best experts on this subject based on the ideXlab platform.

  • Techni ques of quick propagation with branch stem in sugarcane
    Sugar Crops of China, 2002
    Co-Authors: Wang Jian-guang
    Abstract:

    The principle of Plant Apical Dominance used in this paper,the key techniques of quick propagation with branch stem:Using the branch stem of mother stem which Planted in the field in summer,these varieties should be selected with thriving Plants,the root stem growth developed and with blood relationship closely,the treatment techniques to top with10knots,two or three treatment were at4leaves or the buds germinated to get temporary Planting roots and then transPlanting them to the fields and survival ratio above90%,the propagating speed increased from5～8times to30times.