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控制植物干细胞运作的“核心开关”被找到 有望实现农作物生长模式与产量性状的精准设计
Yang Guang Wang· 2025-12-05 07:24
Core Viewpoint - Chinese scientists have discovered the "core switch" that controls the "smart program" of plant stem cell walls, which is crucial for regulating stem cell activity and, consequently, plant growth and crop yield [1][2][3]. Group 1: Plant Stem Cells and Their Importance - Plant stem cells serve as the source of growth and regeneration in plants, directly influencing crop yield and quality [2][5]. - Unlike animal stem cells, plant stem cells are surrounded by a cell wall that plays a significant role in their activity and regulation [2][4]. Group 2: Discovery of the "Smart Program" - The research team identified a unique "dual-mode" distribution in the cell walls of plant stem cells, with mature walls being highly methylated and new walls being temporarily demethylated, which is essential for maintaining the stem cell microenvironment [3][4]. - A specific enzyme was found that can manipulate the advanced structural modifications of the cell wall, influencing whether a cell remains a stem cell or differentiates [4][5]. Group 3: Implications for Crop Improvement - The regulatory mechanism discovered is conserved across various crops such as corn, soybeans, and tomatoes, linking stem cell vitality to key agronomic traits like plant height and fruit size [5]. - By utilizing the "precise design of cell walls" strategy, there is potential to enhance the activity of crop meristems and increase yield, contributing to food security and sustainability goals [5].
科研新突破!中国科学家破解植物再生密码
Yang Shi Xin Wen· 2025-12-04 22:32
Core Insights - The research focuses on how plants maintain stem cell function to achieve strong regenerative abilities, which is crucial for enhancing crop yields, improving fruit and vegetable quality, and increasing forest adaptability [3][4] - A recent study by a research team from the Chinese Academy of Sciences reveals that the mechanical properties of the cell wall play a central role in stem cell regulation, highlighting a unique "biphasic distribution" of pectin in the stem cell region of plant shoot tips [3] Group 1 - The study found that newly formed cell walls are "softer" and rich in demethylated pectin, while mature cell walls are "harder" and primarily consist of highly methylated pectin, which is essential for maintaining the homeostasis of the stem cell microenvironment [3] - The research results were published in the international academic journal "Science" on December 5 [3] Group 2 - This research, based on a "precise design of cell walls" strategy, is expected to enhance the activity of crop meristem tissues and yield potential, providing critical theoretical support and technical pathways for cultivating high-yield and efficient crops [4] - The findings are significant for promoting agricultural technological innovation and empowering future crop design and breeding, contributing to national food security and the achievement of carbon neutrality goals [4]
言鼎细胞生物植物干细胞研究荣登国际顶刊《Engineering》
Hua Xia Shi Bao· 2025-05-30 13:30
Core Insights - The article discusses the recent publication of a scholarly article on medicinal plant stem cells, highlighting advancements, applications, and breakthroughs brought by genomic technologies, which provide new ideas for the industrialization of plant-based medicines and skincare products [2][6]. Company Insights - Qingdao Yanding Cell Biology Technology Development Co., Ltd. has been dedicated to the research of plant embryonic stem cells (PESC), which are undifferentiated cells with perpetual vitality that can proliferate, differentiate, and self-renew [10]. - The company has established a global first "Medicinal Plant Stem Cell Bank" in collaboration with the Chinese Academy of Traditional Chinese Medicine, aimed at protecting and regenerating medicinal plant resources, providing new resources for natural product drug development, and creating a technology-sharing platform for thousands of medicinal plant stem cell resources [10][13]. - Yanding's technology has achieved significant results, with the ability to proliferate 7 tons of cell solution from 10 milliliters in 28 days, maintaining a cell concentration of 10⁹ cells per milliliter, and ensuring the effective components remain stable after 100 generations of reproduction [10]. Industry Insights - Medicinal plant stem cells have the potential to produce plant-derived drugs and bioengineered compounds, supporting sustainable drug synthesis without relying on large-scale agriculture [6]. - The applications of medicinal plant stem cells include the development of plant-based medicines with anti-inflammatory, antibacterial, and anticancer properties, as well as advancements in the skincare and cosmetics industry due to their ability to stimulate collagen synthesis and promote cell regeneration [6]. - The establishment of a global medicinal plant stem cell bank will serve as a resource repository, innovation technology source, and collaboration center, becoming a core driving force for the global medicinal plant stem cell industry [13].