Abscisic acid的英标是[ˌæbsɪˈsɪk.əʊs] ，中文意思是脱落酸。发音分别是/æbsɪsɪk/和/əʊs/。
分别的用法：
1. 用于描述一种植物激素，主要存在于植物的顶端和根尖。
2. 也可用于描述一种化学物质，如一种植物生长调节剂。
分别的发音：分别读作/bi:n/。
分别的记忆：可以结合“别”字来记，有分别就有离别，所以它们读音相似。
希望以上信息对您有帮助。如果需要更多记忆方法，可以请教老师或同学。
脱落酸（Abscisic acid，简称ABA）是一种植物激素，具有多种重要的物理和化学性质。以下是一些主要的物理现象：
1. 溶解性：脱落酸是脂溶性的，这意味着它能够轻易地穿过细胞膜，进入植物细胞的内部。
2. 结晶性：脱落酸是一种晶体物质，具有明显的晶体结构。这种物理性质使得它能够与其他物质相互作用，影响植物的生理过程。
3. 挥发性：脱落酸具有一定的挥发性，这使得它能够通过植物的表面释放到环境中，影响周围植物和微生物的生理活动。
4. 吸湿性：尽管脱落酸不具有明显的吸湿性，但它能够吸附水分，这可能在某些生理过程中起到一定的作用。
这些物理性质使得脱落酸在植物体内发挥着重要的调节作用，影响植物的生长发育、抗逆境能力和适应性。脱落酸在植物的休眠、果实成熟、叶片脱落和气孔关闭等方面都发挥着关键作用。
标题：ABA在植物生长发育中的管理作用
Abstract:
Abscisic acid (ABA) is a phytohormone that plays a crucial role in plant growth and development. It regulates various physiological processes such as seed germination, stomatal movement, and water stress response. In this article, we will discuss the role of ABA in plant management, including its effects on yield and stress resistance.
Introduction:
ABA is a plant hormone that regulates plant responses to environmental stresses such as drought, cold, and high light intensity. It also plays a key role in seed dormancy and germination, and in the regulation of stomatal opening and closing, which affects water use efficiency. Understanding the role of ABA in plant management is crucial for improving crop yields and stress resistance in agricultural systems.
Methods:
In order to understand the role of ABA in plant management, it is necessary to study its biosynthesis, signaling, and regulation of physiological processes. Genetic engineering approaches can be used to manipulate ABA levels and signaling pathways in plants, resulting in improved yield and stress resistance. Other methods include breeding programs that aim to identify genotypes with high ABA levels and favorable traits related to water use efficiency and stress tolerance.
Results:
Increasing ABA levels in plants has been shown to improve drought resistance and yield. This is because ABA promotes stomatal closure, reducing water loss, and also stimulates root growth and increases water uptake, thereby improving water use efficiency. In addition, high ABA levels have been shown to enhance seed dormancy and germination rates, resulting in more reliable crop production.
Conclusion:
In conclusion, ABA plays a crucial role in plant management, affecting various physiological processes such as seed dormancy, germination, and water use efficiency. Understanding the role of ABA in plant management is essential for developing sustainable agricultural practices that improve crop yields and stress resistance. Genetic engineering approaches and breeding programs can be used to manipulate ABA levels and signaling pathways in plants, resulting in more profitable agricultural systems.
References:
1. Xie et al., 2018. “Abscisic acid regulates drought stress tolerance in rice.” Plant Physiology and Biochemistry 127: 235-244.
2. Li et al., 2020. “Genetic engineering of abscisic acid signaling for improved drought tolerance in crops.” Journal of Experimental Botany 71(15): 4677-4687.