Joseph A. M. Holtum

What is he best known for?

The fields of study he is best known for:

• Botany
• Ecology
• Enzyme

His primary areas of investigation include Crassulacean acid metabolism, Botany, Ecology, Water-use efficiency and Clusia. His research in Crassulacean acid metabolism intersects with topics in Bioenergy and Sucrose. His work in the fields of Terrestrial plant, Soil organic matter and Liana overlaps with other areas such as Isotopes of oxygen and Temporal resolution.

His Terrestrial plant research includes themes of Range, Carbon uptake, Isotopes of carbon, Stomatal conductance and Photosynthetic pathway. His work deals with themes such as Canopy, Understory, Tropics, Foraging and Nutrient, which intersect with Water-use efficiency. His work in Clusia tackles topics such as Facultative which are related to areas like Calandrinia, Mesembryanthemum, Portulaca and Talinum.

His most cited work include:

• Predicting organismal vulnerability to climate warming: roles of behaviour, physiology and adaptation (716 citations)
• Environmental and physiological determinants of carbon isotope discrimination in terrestrial plants (311 citations)
• Environmental and physiological determinants of carbon isotope discrimination in terrestrial plants (311 citations)

What are the main themes of his work throughout his whole career to date?

Joseph A. M. Holtum focuses on Botany, Crassulacean acid metabolism, Photosynthesis, Biochemistry and Facultative. His Botany study deals with δ13C intersecting with Panama. Particularly relevant to Mesembryanthemum crystallinum is his body of work in Crassulacean acid metabolism.

As a part of the same scientific study, he usually deals with the Photosynthesis, concentrating on Ecology and frequently concerns with Stomatal conductance and Transpiration. His research integrates issues of Perennial plant, Calandrinia and Crassulaceae in his study of Facultative. He focuses mostly in the field of Terrestrial plant, narrowing it down to matters related to Isotopes of carbon and, in some cases, Water-use efficiency.

He most often published in these fields:

• Botany (81.60%)
• Crassulacean acid metabolism (69.60%)
• Photosynthesis (38.40%)

What were the highlights of his more recent work (between 2016-2021)?

• Crassulacean acid metabolism (69.60%)
• Botany (81.60%)
• Facultative (28.80%)

In recent papers he was focusing on the following fields of study:

His primary areas of study are Crassulacean acid metabolism, Botany, Facultative, Nocturnal and Portulaca. His Crassulacean acid metabolism study improves the overall literature in Photosynthesis. His study in the field of Carbon fixation also crosses realms of Portulaca molokiniensis.

Joseph A. M. Holtum studies C4 photosynthesis, a branch of Botany. His work in Facultative addresses issues such as Perennial plant, which are connected to fields such as Dormancy, δ13C, Mint family and Cistanthe. His Nocturnal study combines topics from a wide range of disciplines, such as Pantropical and Aizoaceae.

Between 2016 and 2021, his most popular works were:

• Optional use of CAM photosynthesis in two C4 species, Portulaca cyclophylla and Portulaca digyna (21 citations)
• Optional use of CAM photosynthesis in two C4 species, Portulaca cyclophylla and Portulaca digyna (21 citations)
• Facultative crassulacean acid metabolism (CAM) in four small C-3 and C-4 leaf-succulents (16 citations)

In his most recent research, the most cited papers focused on:

• Botany
• Ecology
• Enzyme

His main research concerns Facultative, Crassulacean acid metabolism, Botany, Nocturnal and Portulaca. His work on Crassulaceae as part of general Botany research is often related to Portulaca cyclophylla, thus linking different fields of science. His work carried out in the field of Crassulaceae brings together such families of science as Anacampseros, Portulaca pilosa and Portulacaceae.

Portulaca cyclophylla is connected with C4 photosynthesis, Compensation point and Lineage in his research. His biological study spans a wide range of topics, including Arid, Calandrinia and Plant physiology.