Kanaparthi Dheeraj, Lampe Marko, Krohn Jan-Hagen, Zhu Baoli, Klingl Andreas, Lueders Tillmann
Max-Planck Institute for Biochemistry, Munich, Germany.
Chair of Ecological Microbiology, BayCeer, University of Bayreuth, Bayreuth, Germany.
iScience. 2023 Oct 6;26(11):108149. doi: 10.1016/j.isci.2023.108149. eCollection 2023 Nov 17.
Bacterial protoplasts are known to reproduce independently of canonical molecular biological processes. Although their reproduction is thought to be influenced by environmental conditions, the growth of protoplasts in their natural habitat has never been empirically studied. Here, we studied the life cycle of protoplasts in their native environment. Contrary to the previous perception that protoplasts reproduce in an erratic manner, cells in our study reproduced in a defined sequence of steps, always leading to viable daughter cells. Their reproduction can be explained by an interplay between intracellular metabolism, the physicochemical properties of cell constituents, and the nature of cations in the growth media. The efficiency of reproduction is determined by the environmental conditions. Under favorable environmental conditions, protoplasts reproduce with nearly similar efficiency to cells that possess a cell wall. In short, here we demonstrate the simplest method of cellular reproduction and the influence of environmental conditions on this process.
已知细菌原生质体能独立于经典分子生物学过程进行繁殖。尽管人们认为它们的繁殖受环境条件影响，但从未对原生质体在其自然栖息地的生长进行过实证研究。在此，我们研究了原生质体在其原生环境中的生命周期。与之前认为原生质体以不稳定方式繁殖的观念相反，我们研究中的细胞以特定的步骤顺序进行繁殖，最终总是产生有活力的子细胞。它们的繁殖可以通过细胞内代谢、细胞成分的物理化学性质以及生长培养基中阳离子的性质之间的相互作用来解释。繁殖效率由环境条件决定。在有利的环境条件下，原生质体的繁殖效率与具有细胞壁的细胞几乎相似。简而言之，我们在此展示了细胞繁殖的最简单方法以及环境条件对这一过程的影响。
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