Five research results of the School of Life Sciences of Lanzhou University Published in the International Journal of Botany

Since 2022, researchers at the Key Laboratory of the Ministry of Education and the Key Laboratory of the Ministry of Education and the Key Laboratory of Gansu Provincial Genesis Breeding Key Laboratory have published 5 academic papers in the international journal The Plant Cell in the field of botanicals in 2022. The Plant Cell has only about 200 articles each year, and the results of Lanzhou University account for 2.5%, distributed in 5 different teams.

Plants need to constantly generate new cells, tissues, and organs in their life cycle, and stem cells located in conid tissues have given it this ability. Therefore, maintaining the steady -state of the stem and the root end of the root end is critical to the normal growth and development of plants. Existing studies have shown that the signal pathway of CLE -type peptide media has played a core regulatory role in the steady -state balance of Arabiopus mustard stems and rhizomes. However, the signals of CLV3 and CLE25/26/45 small peptide were still unclear, respectively after the CLV1 -Cik and BAM1/3 -CIK receptor complex was perceived. Based on this background, Professor Gou Xiaoping's team published entitled "Receptor-Like Cytoplasmic Kinases PBL34/35/36 Are Cle Peptide-Mediated Signaling Sam and Ram Homeostasis in Arabidop This study found a set of cytoplasm receptor kinase PBL34/35/36, as CLV1 – Cik and BAM1/3 – CIK receptor complexes, respectively, media regulation of CLV3 and CLE25/26/45, respectively The steady -state balance of the beard end and the rhizomes (Figure 1). This discovery and other published research results in the project system systematically explained the molecular mechanism of small peptide signals through receptor kinase regulating plant stem cells, which is a breakthrough progress in the field of plant -proof tissue research. Due to the direct and production and output of crops, these research results have important application prospects.

Figure 1.PBL34/35/36 is located at the CLV1 signaling pathway regulating stem -ending of the stem -ending tissue steady state

As an important environmental signal, the light signal affects the formation of the seedlings. Rapelitin alcohol is the most typical plant hormone in the formation of the seedlings of many vegetable hormones. The role, but its specific molecular mechanism is not clear.林芳教授团队发表了题为“The photomorphogenic repressors BBX28 and BBX29 integrate light and brassinosteroid signaling to inhibit seedling development in Arabidopsis”的学术论文，研究发现光形态建成的抑制因子BBX28和BBX29能够与油菜素甾醇信号通路的Positive adjustment factor BEE1/2/3 interaction, and adjust the expression of the genetic genes by promoting the transcriptional activity of BEE1/2/3 to participate in the process of plant growth and development mediated by the beanol signal pathway. Therefore, BBX28 and BBX29 are important regulatory factor for newly discovered integrated light signals and rapeseed alcohol signals (Figure 2). This study adds new regulatory nodes in the interaction of light signal and rapeseed alcohol signals in terms of regulating the formation of seedlings, providing important theoretical guidance for crop biological breeding and trait improvement.

Figure 2. The inhibitory factor built by light form BBX28/29 Promote the signaling pathway

Poor transport plays an important role in the growth and development of the nuclear biology and the adaptation of the environment. The adaptation protein (AP) complex is essential to recruit cargo protein during the transportation of sac. It is mainly composed of four subunit, but it is not clear what functions and functions and functions and functions and functions of β subunit. Whether they are shared by AP-1 and AP-2 complexes. Professor Wu Navy's team and Professor Wang Chao of Shaoxing School of Arts and Sciences published a academic papers entitled "AP1/2β-Mediated Exocytosis of Tapecific Transporters is Required for Pollen Development in Arabidopsis Thaliana". For the first time, the study proved the AP1/2β sub-submissives shared by AP-1 and AP-2 complex, which explains the important role of AP1/2β adaptering protein in plant reproductive development and its special in specific cell types. Function (Figure 3). AP1/2β By mediating ABC transfer protein ABCG9 and ABCG16 from TGN to the external spit process of cellular membranes, the new mechanism of regulating pollen development by puffing layer cells by puffing layer cells is deepened.

Figure 3. β sub -function defects lead to pollen to breeding

The pollen tube -oriented is an important physiological activity of both sides of the quilt plant and male and female partner, but its accurate regulation mechanism is still unclear. The study found that ALA3, a member of the ATP enzyme family, participated in the establishment of negative charge phospholipids and the polar distribution at the top of the pollen pipe at the top of the pollen tube, which affects the growth and orientation of pollen tube (Figure 4). Professor Yun's team published an academic paper entitled "The Phospholipid Flippase Ala3 Regulaters Pollen Tube Growth and Guidance in Arabidopsis". The discovery provides a new idea for the study of molecular mechanisms such as pollen tube orientation, polar positioning of receptor kinase, and biological functions such as negative charged phospholipids. Figure 4.ALA3 mutant shows the phenotype of pollen tube growth, guidance and seeds to nurture

Cell autophagy is an important life activity process that is an important life activity process that provides nutrients through self -degradation into the cutting -edge hotspot research field through self -degradation into the process of providing a nutrients through self -degradation. Plant protein phosphatase has been a mystery for many years. The team of Professor Hou Sung Puki published an academic paper entitled "Type One Protein Phosphatase Regulaters Fixed-CARBON Starvation-In Arabidopsis". The study found that the plant I type I-type protein phosphatase TOPP family can regulate the phosphoric acidization state of the ATG1 -TG13 kinase complex through the dehumphondoid modification of the cell autophaorus protein ATG13A, and start the cell autophaorus (Figure 5). The discovery provides important evidence and ideas for in -depth understanding of the molecular mechanism of autophagy in plant cells. At the same time, because cell autophagins are closely related to the antitrusty response of plants, this discovery is also expected to be applied to agricultural production to improve crop resistance.

Figure 5. TOPP mediated ATG13A dehuminification enhances carbon hunger induced cell autophagy

The Biology Discipline of the School of Life Sciences of Lanzhou University has a deep historical accumulation, continuously produced high -level research results in the field of basic research, and continued to train a large number of high -quality talents for the country. At present, the college actively responds to the national call. With the strong support of the school, it is dedicated to carrying out the "four orientation" high -level scientific research work. The key laboratory, focus on solving important crops such as corn and crickets and the problem of "stuck neck" in the pasture industry, make Lanna contributions, leading high -quality teaching and talent training.

Original link:

https://doi.org/10.1093/Plcell/koab315

https://doi.org/10.1093/Plcell/koac092

https://doi.org/10.1093/Plcell/koac192

https://doi.org/10.1093/Plcell/koac208

https://doi.org/10.1093/Plcell/koac251

Source | Propaganda Department of the Party Committee of Lanzhou University (News Network)

Text | Liu Yuzhi

Edit | von Yifu

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