glyoxylate cycle

简明释义

乙醛酸循环

英英释义

例句

1.Research has shown that the glyoxylate cycle 乙醛酸循环 is essential for the growth of certain fungi.

研究表明，乙醛酸循环对某些真菌的生长是必不可少的。

2.During the glyoxylate cycle 乙醛酸循环, acetyl-CoA is converted into succinate, which is vital for energy production.

在乙醛酸循环中，乙酰辅酶A被转化为琥珀酸，这对能量生产至关重要。

3.The enzymes involved in the glyoxylate cycle 乙醛酸循环 are often targeted for genetic modification to enhance oilseed crops.

参与乙醛酸循环的酶常被作为基因改造的目标，以增强油料作物的产量。

4.In microorganisms, the glyoxylate cycle 乙醛酸循环 plays a crucial role in metabolism during periods of low carbohydrate availability.

在微生物中，乙醛酸循环在碳水化合物供应不足时的代谢中起着至关重要的作用。

5.The glyoxylate cycle 乙醛酸循环 allows plants to convert fatty acids into carbohydrates.

乙醛酸循环使植物能够将脂肪酸转化为碳水化合物。

作文

The glyoxylate cycle is a crucial metabolic pathway that enables certain organisms to convert fatty acids into carbohydrates, which can be utilized for energy. This cycle is particularly important in plants, bacteria, and fungi, as they often rely on stored fats during periods of growth or when carbohydrates are scarce. Understanding the glyoxylate cycle not only sheds light on fundamental biological processes but also has significant implications for agriculture and biotechnology.The glyoxylate cycle differs from the traditional citric acid cycle (Krebs cycle) primarily by bypassing the decarboxylation steps, allowing for the conservation of carbon atoms. In this cycle, two molecules of acetyl-CoA are converted into one molecule of succinate, which can then be further processed to produce glucose through gluconeogenesis. This ability to synthesize glucose from fatty acids is vital for organisms that may not have access to carbohydrates directly from their environment.In plants, the glyoxylate cycle occurs in specialized organelles called glyoxysomes. These organelles contain the necessary enzymes to facilitate the conversion of stored lipids into sugars. During seed germination, for instance, the glyoxylate cycle allows seedlings to utilize fat reserves until they can photosynthesize and produce their own carbohydrates. This process is essential for the early stages of plant development, ensuring that young plants have the energy needed to grow and establish themselves.Moreover, the glyoxylate cycle plays a significant role in the survival of microorganisms in various environments. Many bacteria can utilize the cycle to thrive in nutrient-poor conditions, where carbohydrates are limited. By efficiently converting fatty acids into glucose, these microorganisms can adapt to changing environmental conditions and maintain their metabolic functions.Research into the glyoxylate cycle has also led to advancements in biotechnology. For example, scientists are exploring ways to enhance the efficiency of this cycle in crops to improve yields and resilience against stressors such as drought or nutrient deficiency. By understanding the underlying mechanisms of the glyoxylate cycle, researchers can develop strategies to manipulate this pathway for better agricultural outcomes.In conclusion, the glyoxylate cycle is an essential metabolic pathway that allows certain organisms to convert fatty acids into carbohydrates, thus playing a vital role in energy production and storage. Its significance extends beyond basic biology, impacting agriculture and biotechnology. As we continue to explore the intricacies of this cycle, we may uncover new methods to enhance food production and sustainability in our ever-changing world.

甘油酸循环是一种关键的代谢途径，使某些生物能够将脂肪酸转化为碳水化合物，以便用于能量。这一循环在植物、细菌和真菌中尤其重要，因为它们在生长期间或碳水化合物稀缺时常常依赖储存的脂肪。理解甘油酸循环不仅揭示了基本的生物过程，而且对农业和生物技术具有重要意义。甘油酸循环与传统的柠檬酸循环（克雷布斯循环）主要不同之处在于绕过脱羧步骤，从而保留碳原子。在这个循环中，两分子乙酰辅酶A转化为一分子琥珀酸，后者可以进一步加工生成葡萄糖，通过糖异生作用进行合成。这种从脂肪酸合成葡萄糖的能力对于那些可能无法直接从环境中获得碳水化合物的生物至关重要。在植物中，甘油酸循环发生在称为甘油酸体的特殊细胞器中。这些细胞器含有促进储存脂质转化为糖所需的酶。例如，在种子发芽期间，甘油酸循环使幼苗能够利用脂肪储备，直到它们能够进行光合作用并产生自己的碳水化合物。这一过程对于植物早期发育阶段至关重要，确保年轻植物拥有生长和建立自身所需的能量。此外，甘油酸循环在微生物在各种环境中的生存中也发挥着重要作用。许多细菌能够利用这一循环在营养贫乏的环境中生存，其中碳水化合物有限。通过有效地将脂肪酸转化为葡萄糖，这些微生物能够适应变化的环境条件，并维持其代谢功能。对甘油酸循环的研究还推动了生物技术的进步。例如，科学家们正在探索增强作物中这一循环效率的方法，以提高产量和抵御干旱或营养缺乏等压力源的能力。通过理解甘油酸循环的基本机制，研究人员可以制定策略来操控这一途径，以实现更好的农业成果。总之，甘油酸循环是一种重要的代谢途径，使某些生物能够将脂肪酸转化为碳水化合物，从而在能量生产和储存中发挥重要作用。它的意义超越了基础生物学，对农业和生物技术产生了影响。随着我们继续探索这一循环的复杂性，我们可能会发现新的方法来增强食品生产和可持续性，以应对我们不断变化的世界。