Serine proteases are one of the most abundant groups of proteolytic enzymes found in all the kingdoms of life.
Sulfur-oxidizing bacteria are one of the most abundant groups of microbes in these oxygen minimum zones, and several of these bacteria are known to influence the recycling of chemical substances.
Collembola is one of the most abundant groups of soil fauna, which regulates microbial communities by consumption and dispersal.
Phenols constitute one of the most abundant groups of secondary metabolites, ranging from simple molecules (e.g., phenolic acids) to highly polymerized compounds (e.g., lignins), in plant kingdom.
Theridiidae is one of the most abundant groups of spiders, and thus key insect predators in many different ecosystems and is among relatively few spider families that show high degree of myrmecophagy.
Phenolics, one of the most abundant groups of phytochemicals in whole grains, are considered natural antioxidants, which act as radical scavengers to decrease the incidence of oxidative stress-induced damage to large biological molecules, such as lipids, proteins, and DNA [12].
Archaea are particularly numerous in the oceans, and the archaea in plankton may be one of the most abundant groups of organisms on the planet.
The MYB superfamily constitutes one of the most abundant groups of transcription factors described in plants.
The Roseobacter lineage is one of the most abundant groups of bacteria in the oceans, and D. shibae was isolated from marine dinoflagellates.
WRKY genes encode one of the most abundant groups of transcription factors in higher plants, and its members regulate important biological process such as growth, development, and responses to biotic and abiotic stresses.
