Pollen morphology of the Sapotaceae from Thailand and its taxonomic implications

Q3 Agricultural and Biological Sciences

Thai Forest Bulletin (Botany) Pub Date : 2022-01-01 DOI:10.20531/tfb.2022.50.2.12

Pongsakorn Kunasit, P. Chantaranothai

引用次数: 0

Abstract

The external pollen morphology of the family Sapotaceae in Thailand was examined using the acetolysis method to determine its taxonomic significance. Pollen of 39 specimens belonging to 32 species was investigated by means of light and scanning electron microscopy. Pollen grains are found to be monads, isopolar, colporate, lalongate, and variable in size, shape, aperture number, colpus length and exine thickness. Exine ornamentation is also variable, showing more than one pattern on a single pollen grain. Principal component analysis based on 13 pollen characters identified three pollen groups: Chrysophyllum, Madhuca and Pouteria types based on pollen shape, size, the ratio of colpus length to the polar axis and exine sculpturing. Pollen morphology is taxonomically useful in the classification of the Thai Sapotaceae, especially in the taxonomic status of Planchonella and Pouteria species.

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标题泰国仙人掌科植物的花粉形态及其分类意义

采用丙酮解法对泰国仙人掌科植物外花粉形态进行了研究，以确定其分类学意义。利用光镜和扫描电镜对32种39个标本的花粉进行了研究。花粉粒有单粒、等极粒、团形、沿形，大小、形状、孔数、柱头长度和外壁厚度不等。外壁纹饰也是可变的，在一个花粉粒上显示一个以上的图案。基于13个花粉性状的主成分分析，根据花粉的形状、大小、柱头长度与极轴的比值和外壁雕刻特征，将其划分为3个花粉类群:金菊属(Chrysophyllum)、madhua和Pouteria。花粉形态对泰国仙人掌科植物的分类，特别是对Planchonella和Pouteria的分类地位有重要意义。

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

Thai Forest Bulletin (Botany) Agricultural and Biological Sciences-Forestry

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Thai Forest Bulletin (Botany) (TFB) publishes papers on plant taxonomy (especially of vascular plants), nomenclature, phylogeny, systematics, plant geography, and floristics, and in morphology, palynology, cytotaxonomy, chemotaxonomy, anatomy and other relevant disciplines. Priority is given to papers written by staff of the Forest Herbarium and by botanists working on the Flora of Thailand project. Limited space is available for other relevant papers. TFB is published twice a year, usually in June and December. Two free copies of the issue in which the manuscript is published are given to each author. The journal makes no page charges. All manuscripts are peer reviewed. Manuscripts are considered on the understanding that their contents have not appeared, or will not appear, elsewhere in the same or abbreviated form. To speed up the processing of your manuscript please follow these guidelines precisely. Failure to do so will result in a delay to publication.