Variation in internode length patterns: a data analysis of internode length and serial number in three bamboo species

IF 2.4 3区环境科学与生态学 Q2 ECOLOGY

Frontiers in Ecology and Evolution Pub Date : 2024-08-16 DOI:10.3389/fevo.2024.1440494

Jiewen Tan, Xiaonan Liu, Qiying Li, Kehang Ma, Weiwei Huang

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引用次数: 0

Abstract

IntroductionBamboo is one of the fastest-growing plants on earth, and its young culms are formed by the elongation of internodes. However, the mathematical intricacies of its internode elongation are not well understood.MethodsThis study investigated the internode length growth of Phyllostachys edulis, Phyllostachys iridescens, and Pseudosasa amabilis at ten different culm height developmental stages (G1–G10).Results and discussionThe tempo of internode elongation from the culm base to the tip generally followed a “slow-fast-slow” growth rhythm. The internode length and the serial number relationship showed a right-skewed curve. As the bamboo grows taller, the longest internode moves from the base to the middle of the culm. The relationship between relative internode number (RIN) and relative cumulative internode length (RCIL) displayed a typical S-shaped growth curve. The modified Brière (MBE) sigmoid equation achieved better goodness-of-fit than the logistic, power, and third-order functions in fitting the RIN-RCIL curves with the smallest average root mean square error (RMSE). The elongation rates of internodes varied not only with the growth of culm height, but also with the position of the bamboo culm from base to tip. In addition, as the bamboo grows in height, more internodes gradually contribute to the culm height growth. At G1 development stage, 24.01–38.23% of the internodes contributed 65.27–73.59% of the culm height, whereas at G10 stage, 49.28–61.07% of the internodes contributed 66.70–78.18% of the culm height. Our findings provide new insights into the mathematical characterization of bamboo internode elongation patterns involved in the rapid culm growth.

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节间长度模式的变异：三种竹子节间长度和序列号的数据分析

引言竹子是地球上生长最快的植物之一，它的幼秆是通过节间伸长形成的。方法本研究调查了 Phyllostachys edulis、Phyllostachys iridescens 和 Pseudosasa amabilis 在十个不同秆高发育阶段（G1-G10）的节间长度增长情况。结果与讨论节间伸长的速度从秆基部到顶端一般遵循 "慢-快-慢 "的生长节律。节间长度和序数的关系呈右斜曲线。随着竹子越长越高，最长的节间从竹秆基部向中部移动。相对节间数（RIN）和相对累积节间长度（RCIL）之间的关系呈现典型的 S 型生长曲线。在拟合 RIN-RCIL 曲线时，修正的布里埃（MBE）乙次方程比对数函数、幂函数和三阶函数的拟合效果更好，平均均方根误差（RMSE）最小。节间的伸长率不仅随竹秆高度的增长而变化，还随竹秆从基部到顶端的位置而变化。此外，随着竹子高度的增长，更多的节间逐渐对竹秆高度的增长做出贡献。在 G1 发展阶段，24.01-38.23% 的节间对秆高的贡献率为 65.27-73.59%，而在 G10 阶段，49.28-61.07% 的节间对秆高的贡献率为 66.70-78.18%。我们的研究结果为竹秆快速生长过程中竹节间伸长模式的数学表征提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers in Ecology and Evolution Environmental Science-Ecology

CiteScore

4.00

自引率

6.70%

发文量

1143

审稿时长

12 weeks

期刊介绍： Frontiers in Ecology and Evolution publishes rigorously peer-reviewed research across fundamental and applied sciences, to provide ecological and evolutionary insights into our natural and anthropogenic world, and how it should best be managed. Field Chief Editor Mark A. Elgar at the University of Melbourne is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics and the public worldwide. Eminent biologist and theist Theodosius Dobzhansky’s astute observation that “Nothing in biology makes sense except in the light of evolution” has arguably even broader relevance now than when it was first penned in The American Biology Teacher in 1973. One could similarly argue that not much in evolution makes sense without recourse to ecological concepts: understanding diversity — from microbial adaptations to species assemblages — requires insights from both ecological and evolutionary disciplines. Nowadays, technological developments from other fields allow us to address unprecedented ecological and evolutionary questions of astonishing detail, impressive breadth and compelling inference. The specialty sections of Frontiers in Ecology and Evolution will publish, under a single platform, contemporary, rigorous research, reviews, opinions, and commentaries that cover the spectrum of ecological and evolutionary inquiry, both fundamental and applied. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria. Through this unique, Frontiers platform for open-access publishing and research networking, Frontiers in Ecology and Evolution aims to provide colleagues and the broader community with ecological and evolutionary insights into our natural and anthropogenic world, and how it might best be managed.