Plant stem cells are innately undifferentiated cells located in the meristems of plants. Plant stem cells serve as the origin of plant vitality, as they maintain themselves while providing a steady supply of precursor cells to form differentiated tissues and organs in plants. Two distinct areas of stem cells are recognised: the apical meristem and the lateral meristem.
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| - Cellule souche végétale (fr)
- 식물줄기세포 (ko)
- Plant stem cell (en)
- 植物干细胞 (zh)
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| - 植物干细胞是一类存在于植物分生组织中，一类处于未分化状态的、具有自我更新能力和分化潜能的细胞。其液泡化程度低，具有较高的线粒体活性，遗传稳定。植物干细胞能在植物体受到损伤时分化，修复受损的组织。植物干细胞实为传统植物解剖学范畴中的分生组织，包括茎尖分生组织、根尖分生组织、侧生分生组织以及部分髓射线细胞。理论上，植物干细胞同动物的干细胞一样，能进行无限次数的分裂。 (zh)
- Plant stem cells are innately undifferentiated cells located in the meristems of plants. Plant stem cells serve as the origin of plant vitality, as they maintain themselves while providing a steady supply of precursor cells to form differentiated tissues and organs in plants. Two distinct areas of stem cells are recognised: the apical meristem and the lateral meristem. (en)
- Les cellules souches végétales sont des cellules indifférenciées présentes dans le méristème des plantes. On pourrait donc implanter un maximum de cellules souches végétales dans une seule plante et donc augmenter considérablement leur régénération et peut-être l'accélérer. Une cellule souche normale est une cellule indifférenciée se caractérisant par la capacité à engendrer des cellules spécialisées par différenciation cellulaire et une capacité à se maintenir par prolifération dans l'organisme (auto-renouvellement).Les cellules souches peuvent se distinguer en fonction de leur potentiel de différenciation : (fr)
- 식물줄기세포(plant stem cell, cambial meristematic cell)란 안정적인 형태로 자신의 'identity'를 유지하면서, 새로운 stem cell을 계속적으로 분열할 수 있는 능력을 가진 세포 로서, 식물줄기세포의 가장 큰 특징은 무한정적인 'self-renewal' 과 다른 세포 종류로 분화할 수 있는 능력이다. 이러한 식물줄기세포는' shoot(SAM) 과 root tip (RAM), vascular system' (procambium/cambium)의 분열조직 (meristem)에 존재함. 지구상에서 100년 이상 생존하는 동물의 경우는 드물지만 식물체는 수백 년, 또는 수천 년까지도 생존할 수 있는데, 학자들은 이러한 식물의 놀라운 생명력의 근원(origin)이 식물의 줄기세포에서부터 왔다고 밝혀왔다. (ko)
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| - Les cellules souches végétales sont des cellules indifférenciées présentes dans le méristème des plantes. On pourrait donc implanter un maximum de cellules souches végétales dans une seule plante et donc augmenter considérablement leur régénération et peut-être l'accélérer. Une cellule souche normale est une cellule indifférenciée se caractérisant par la capacité à engendrer des cellules spécialisées par différenciation cellulaire et une capacité à se maintenir par prolifération dans l'organisme (auto-renouvellement).Les cellules souches peuvent se distinguer en fonction de leur potentiel de différenciation :
* Les cellules souches totipotentes : pouvant donner tout type cellulaire, et donc un organisme entier.
* Les cellules souches pluripotentes : capables de donner tous les types cellulaires sauf les annexes embryonnaires.
* Les cellules souches multipotentes : susceptibles de donner différents types de cellules, mais spécifiques d'un lignage cellulaire donné.
* Les cellules souches unipotentes : qui ne peuvent donner qu'une seule sorte de cellule (elles peuvent cependant, comme toute cellule souche, s'auto-renouveler). (fr)
- Plant stem cells are innately undifferentiated cells located in the meristems of plants. Plant stem cells serve as the origin of plant vitality, as they maintain themselves while providing a steady supply of precursor cells to form differentiated tissues and organs in plants. Two distinct areas of stem cells are recognised: the apical meristem and the lateral meristem. Plant stem cells are characterized by two distinctive properties, which are: the ability to create all differentiated cell types and the ability to self-renew such that the number of stem cells is maintained. Plant stem cells never undergo aging process but immortally give rise to new specialized and unspecialized cells, and they have the potential to grow into any organ, tissue, or cell in the body. Thus they are totipotent cells equipped with regenerative powers that facilitate plant growth and production of new organs throughout lifetime. Unlike animals, plants are immobile. As plants cannot escape from danger by taking motion, they need a special mechanism to withstand various and sometimes unforeseen environmental stress. Here, what empowers them to withstand harsh external influence and preserve life is stem cells. In fact, plants comprise the oldest and the largest living organisms on earth, including Bristlecone Pines in California, U.S. (4,842 years old), and the Giant Sequoia in mountainous regions of California, U.S. (87 meters in height and 2,000 tons in weight). This is possible because they have a modular body plan that enables them to survive substantial damage by initiating continuous and repetitive formation of new structures and organs such as leaves and flowers. Plant stem cells are also characterized by their location in specialized structures called meristematic tissues, which are located in root apical meristem (RAM), shoot apical meristem (SAM), and vascular system ((pro)cambium or vascular meristem.) (en)
- 식물줄기세포(plant stem cell, cambial meristematic cell)란 안정적인 형태로 자신의 'identity'를 유지하면서, 새로운 stem cell을 계속적으로 분열할 수 있는 능력을 가진 세포 로서, 식물줄기세포의 가장 큰 특징은 무한정적인 'self-renewal' 과 다른 세포 종류로 분화할 수 있는 능력이다. 이러한 식물줄기세포는' shoot(SAM) 과 root tip (RAM), vascular system' (procambium/cambium)의 분열조직 (meristem)에 존재함. 지구상에서 100년 이상 생존하는 동물의 경우는 드물지만 식물체는 수백 년, 또는 수천 년까지도 생존할 수 있는데, 학자들은 이러한 식물의 놀라운 생명력의 근원(origin)이 식물의 줄기세포에서부터 왔다고 밝혀왔다. 즉, 식물 줄기세포는 놀라운 재생 능력을 가지고 있어, 수백 년의 기간 동안 식물이 성장할 수 있게 하고, 새로운 기관들을 생성할 수 있게 하기 때문에 오랜 세월 존재할 수 있는 것이다. 이처럼 식물 생명력의 근원인 식물줄기세포가 식물의 분열조직에 존재한다는 것은 알려진 사실이었고, 지난 160여년의 식물조직배양의 역사 속에서 식물줄기세포를 순수하게 분리하려는 노력이 지속되었으나, 그 독특한 구조 때문에 식물줄기세포만을 순수하게 분리 및 배양에 성공하지 못하였다. (ko)
- 植物干细胞是一类存在于植物分生组织中，一类处于未分化状态的、具有自我更新能力和分化潜能的细胞。其液泡化程度低，具有较高的线粒体活性，遗传稳定。植物干细胞能在植物体受到损伤时分化，修复受损的组织。植物干细胞实为传统植物解剖学范畴中的分生组织，包括茎尖分生组织、根尖分生组织、侧生分生组织以及部分髓射线细胞。理论上，植物干细胞同动物的干细胞一样，能进行无限次数的分裂。 (zh)
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