Analysis and review of trichomes in plants

Xiaojing Wang,Pinghong Meng,Litang Lv,Guofei Tan,Chao Shen

doi:10.1186/s12870-021-02840-x

Xiaojing Wang, Pinghong Meng + Show 3 more

Open Access

https://doi.org/10.1186/s12870-021-02840-x

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Abstract

BackgroundTrichomes play a key role in the development of plants and exist in a wide variety of species.ResultsIn this paper, it was reviewed that the structure and morphology characteristics of trichomes, alongside the biological functions and classical regulatory mechanisms of trichome development in plants. The environment factors, hormones, transcription factor, non-coding RNA, etc., play important roles in regulating the initialization, branching, growth, and development of trichomes. In addition, it was further investigated the atypical regulation mechanism in a non-model plant, found that regulating the growth and development of tea (Camellia sinensis) trichome is mainly affected by hormones and the novel regulation factors.ConclusionsThis review further displayed the complex and differential regulatory networks in trichome initiation and development, provided a reference for basic and applied research on trichomes in plants.

Highlights

Trichomes play a key role in the development of plants and exist in a wide variety of species
Cotton seed trichomes are important raw materials in the textile industry [8–10], and tea trichomes are critical for tea breeding and tea quality as they are rich in nutrients [11]
We found that the miR171-targeted LOST MERISTEMS 1 (LOM1), LOM2 and LOM3 were involved in regulating SQUAMOSA PROMOTER BINDING PROTEIN LIKE (SPL) activity

Summary

Introduction

Trichomes play a key role in the development of plants and exist in a wide variety of species. The environment factors, hormones, transcription factor, non-coding RNA, etc., play important roles in regulating the initialization, branching, growth, and development of trichomes. It was further investigated the atypical regulation mechanism in a non-model plant, found that regulating the growth and development of tea (Camellia sinensis) trichome is mainly affected by hormones and the novel regulation factors. Trichomes are defined as unicellular or multicellular appendages, which are an extension of the above-ground epidermal cells in plants [1]. These appendages play a key role in the development of plantsand occur in a wide variety of species [2].

Objectives

Conclusion