関連する実験動画
Updated: Sep 8, 2025
14:43
Lignin Down-regulation of Zea mays via dsRNAi and Klason Lignin Analysis
Published on: July 23, 2014
13.4K
トランスクリプション因子ZmFAMAとZmSCRM2は,トウモロコシの口腔発達を調節するヘテロディメア複合体を形成する
Xiaohang Wang1, Xin Qiao1, Bolun Meng1
1State Key Laboratory of Crop Stress Adaptation and Improvement, The Zhongzhou Laboratory for Integrative Biology, School of Life Sciences, Henan University, Jinming Avenue 1, Kaifeng 475004, China.
Journal of experimental botany
|August 20, 2025
まとめ
トウモロコシのbHLH転写因子ZmFAMAとZmSCRM2は,適切な口腔の発達と保護細胞の形状に不可欠です. 遺伝子発現を制御し 光合成と水交換に影響を及ぼし 作物の改善に不可欠です
科学分野:
- 植物生物学
- 遺伝学
- 分子生物学
背景:
- 胃はガスと水の交換を制御し 炭素の循環に影響を与えます
- bHLHの転写因子は,植物の発達において重要な役割を果たします.
- 農作物の回復力には 歯茎の発達を理解することが重要です
研究 の 目的:
- トウモロコシの口腔の発達における ZmFAMA と ZmSCRM2 の役割を調査する.
- 守護細胞の形態変異におけるその機能を明らかにする.
- 独特の草の口腔構造への貢献を決定する.
主な方法:
- 変異性スクリーニングとトウモロコシ変異体の現象分析
- 遺伝子の変異を特定するための全ゲノム配列解析
- 遺伝子発現の変化を評価するために,ジゴシティ分析とRNA配列化 (RNA-seq) を行う.
主要な成果:
- zmfama-1の変異体は 異常な棒のような 護衛細胞の形状を示した
- ZmFAMAとZmSCRM2は遺伝子発現を調節するヘテロダイマーを形成する.
- RNA-seqは,光合成と口腔運動経路の遺伝子発現の変化を明らかにした.
結論:
- ZmFAMAとZmSCRM2は,トウモロコシのガード細胞の発達と形状に不可欠です.
- これらの要因は,口腔の構造に保存され,特殊な役割を果たしています.
- 発見は環境ストレス下での作物のパフォーマンスを向上させるための洞察を提供します.
関連する概念動画
02:04Regulation of Transpiration by Stomata
29.0K
During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
29.0K
02:23Master Transcription Regulators
7.0K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
7.0K
02:33Combinatorial Gene Control
8.4K
Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
8.4K
02:04Co-activators and Co-repressors
7.5K
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
7.5K
02:19Morphogenesis
28.8K
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.
28.8K
01:27C4 Pathway and CAM
46.2K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
46.2K