相关实验视频

Updated: Jul 9, 2025

Scanning Electron Microscopy SEM Protocols for Problematic Plant, Oomycete, and Fungal Samples

Scanning Electron Microscopy SEM Protocols for Problematic Plant, Oomycete, and Fungal Samples

Published on: February 3, 2017

来自中国的Clerodendrum L. (Lamiaceae) 的花粉形态及其系统影响

Xiakai Huang¹, Rui Wu¹, Zheng Xiong¹

¹Department of Agricultural College, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning 530004, Guangxi, China Guangxi University Nanning China.

|November 29, 2023

概括

对Clerodendrum的花粉分析揭示了基于exine雕塑的五种不同的类型. 这项研究支持Clerodendrum.

科学领域:

帕利诺学 (Palynology) 是一个临床学科.
植物分类学植物分类学
扫描电子显微镜 (SEM) 的使用

背景情况:

克莱罗登德鲁姆的分类是复杂的,传统的分类缺乏强大的支持.
了解花粉形态学有助于解决属内的遗传学关系.

研究的目的:

研究和描述26种克莱罗登德鲁姆种类和1种Volkameria种类的花粉形态.
评估古生物学数据对Clerodendrum分类和植物遗传学分析的有用性.

主要方法:

使用扫描电子显微镜 (SEM) 检查花粉粒.
对花粉颗粒进行了分析,以确定其尺寸,形状,孔径和exine雕塑等特征.

主要成果:

克莱罗登德鲁姆花粉颗粒是单体,放射对称和三合体,大小和形状各不相同.
根据exine雕塑模式确定了五种不同的花粉类型.
遗传学数据支持Clerodendrum和几个Lamiaceae属之间的密切关系,这与传统的分类相矛盾.

结论:

花粉形态学为了解Clerodendrum的原生和Lamiaceae内部的关系提供了有价值的数据.
这项研究强调了传统分类系统的局限性,以及类学在未来的分类学修订中的潜力.
遗传学数据可以帮助区分具有相似形态特征的密切相关的Clerodendrum物种.

关键词:

克莱罗德伦德鲁姆 (Clerodendrum) 是一个名字.这就是SEM SEM.花粉形态学花粉形态学分类学分类学.

更多相关视频

Collection and Identification of Pollen from Honey Bee Colonies

Collection and Identification of Pollen from Honey Bee Colonies

Published on: January 19, 2021

A PCR-based Genotyping Method to Distinguish Between Wild-type and Ornamental Varieties of Imperata cylindrica

A PCR-based Genotyping Method to Distinguish Between Wild-type and Ornamental Varieties of Imperata cylindrica

Published on: February 20, 2012

相关概念视频

Pollination and Flower Structure

Pollination and Flower Structure

Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.

Introduction to Seed Plants

Introduction to Seed Plants

Most plants are seed plants—characterized by seeds, pollen, and reduced gametophytes. Seed plants include gymnosperms and angiosperms.

Lampbrush Chromosomes

Lampbrush Chromosomes

In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...

Polytene Chromosomes

Polytene Chromosomes

Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also...

Morphogenesis

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.