相关实验视频

Updated: Sep 11, 2025

Combining Histochemical Staining and Image Analysis to Quantify Starch in the Ovary Primordia of Sweet Cherry during Winter Dormancy

Combining Histochemical Staining and Image Analysis to Quantify Starch in the Ovary Primordia of Sweet Cherry during Winter Dormancy

Published on: March 20, 2019

Fragaria ananassa DAM4的表达与在半休眠状态中断的植物生长相关

Stephan David¹, Philippe Kersten¹, Xiren Cao¹

¹Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, PO Box 16, Wageningen, 6700AA, the Netherlands.

|August 17, 2025

概括

与休眠相关的MADS-BOX (DAM) 3和DAM4基因表达与草的植物生长有负相关,这表明它们在调节冬季休眠中的作用. 它们的表达模式与半休眠感应和断裂过程保持一致.

科学领域:

植物生理学植物生理学
分子生物学分子生物学
农业科学农业科学

背景情况:

与休眠相关的MADS-BOX (DAM) 基因参与调节栽培草 (* Fragaria x ananassa *) 的冬季休眠状态.
在短昼条件下,DAM3和DAM4的表达增加,在冷却暴露时降低.

研究的目的:

为了研究DAM3和DAM4基因表达和草休眠期间的植物生长之间的相关性.
评估DAM3和DAM4在休眠诱导和断裂中的作用.
为了比较不同草品种和叶类型的DAM基因表达.

主要方法:

分析DAM3和DAM4基因表达以及半休眠期的植物形态和生理学.
具有不同冷却要求的草品种之间的比较表达分析.
检查DAM基因表达在夏季和冬季在休眠中断期间的叶子.

主要成果:

DAM3和DAM4表达与叶面积和树叶长度有负相关性.
在半休眠中断期间,DAM4表达与植物生长有很强的相关性.
在DAM3/DAM4表达和品种特定的冷却要求之间或夏季和冬季叶子之间没有发现显著的相关性.

结论:

DAM3和DAM4基因表达模式支持它们作为草中半休眠状态的调节者的作用.
在半休眠状态中,DAM4是植物生长的关键调节者.
DAM基因表达与品种特定的冷却要求或休眠期间的叶类型差异没有直接联系.

更多相关视频

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions

Published on: August 25, 2018

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput

Published on: March 30, 2018

相关概念视频

Gene Regulation During Sporulation

Gene Regulation During Sporulation

Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...

Meristems and Plant Growth

Meristems and Plant Growth

Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.

Fruit Development, Structure, and Function

Fruit Development, Structure, and Function

Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.

Primary and Secondary Growth in Roots and Shoots

Primary and Secondary Growth in Roots and Shoots

Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.

Seedless Vascular Plants

Seedless Vascular Plants

Seedless Vascular Plants Were the First Tall Plants on Earth

Regulation of Transpiration by Stomata

Regulation of Transpiration by Stomata

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.