Blue Planet, Red and Green Photosynthesis: Productivity and Carbon Cycling in Aquatic Ecosystems

Aquatic photosynthetic organisms contribute about half of the global primary productivity by transforming the anoxic atmosphere of the Earth over geological time. This book covers the molecular mechanisms involved in aquatic carbon uptake and the global consequences as humankind alters the blue planet.

Format: Hardback
Length: 336 pages
Publication date: 24 August 2022
Publisher: ISTE Ltd

Aquatic photosynthetic organisms play a crucial role in contributing approximately half of the global primary productivity, making a significant impact in mitigating climate change by sequestering carbon dioxide and producing oxygen. Over geological time, these organisms have transformed the original anoxic atmosphere of the Earth. Aquatic photosynthesis is carried out by a diverse range of organisms, primarily involving cyanobacteria and algae derived from the "red-lineage," distinct from terrestrial primary productivity, which is limited to "green-lineage" plants.

In Blue Planet, Red and Green Photosynthesis, the author delves into the intricate mechanisms employed by aquatic primary producers to optimize their productivity. These organisms have evolved a series of structures and mechanisms that enhance the availability of carbon dioxide to the enzyme Rubisco, which is responsible for carbon dioxide fixation. By understanding these molecular processes, the book provides valuable insights into aquatic carbon uptake and its global consequences as humankind alters the blue planet.

Aquatic photosynthetic organisms contribute to the overall health and stability of the Earth's ecosystems by absorbing carbon dioxide and releasing oxygen. They play a vital role in maintaining the balance of carbon dioxide levels in the atmosphere, which is crucial for regulating global climate. Through their photosynthetic activities, they help mitigate the effects of climate change, such as rising temperatures, sea level rise, and extreme weather events.

Moreover, aquatic photosynthesis provides a significant source of food and energy for a wide range of organisms, including fish, marine mammals, and aquatic plants. It supports the productivity of marine ecosystems and contributes to the overall biodiversity of the oceans. Aquatic photosynthetic organisms also play a role in regulating water quality by removing pollutants and converting them into oxygen.

However, human activities, such as pollution, overfishing, and climate change, have posed significant threats to aquatic photosynthetic organisms. These threats include nutrient pollution, which can lead to algal blooms and oxygen depletion, as well as climate change, which can alter water temperature and pH levels, affecting the growth and survival of these organisms.

To address these challenges, it is essential to promote sustainable practices and conservation efforts. This includes reducing pollution, implementing regulations to protect marine ecosystems, and promoting the use of renewable energy sources to mitigate the effects of climate change. Additionally, research and development efforts should focus on developing new technologies and strategies to enhance the productivity and resilience of aquatic photosynthetic organisms, ensuring their continued contribution to the health and sustainability of the Earth's ecosystems.

In conclusion, aquatic photosynthetic organisms play a vital role in contributing to the global primary productivity and mitigating climate change. Through their unique mechanisms and adaptations, they have transformed the Earth's atmosphere and provided a significant source of food and energy for a wide range of organisms. However, human activities have posed significant threats to these organisms, highlighting the need for sustainable practices and conservation efforts to protect and enhance their productivity. By understanding the molecular mechanisms involved in aquatic photosynthesis and promoting sustainable practices, we can work towards a more sustainable and resilient future for the blue planet.

Weight: 650g
Dimension: 10 x 10 x 10 (mm)
ISBN-13: 9781789450828