On the basis of its generally accessible I/II redox couple and bioavailability, copper plays a
wide variety of roles in nature that mostly involve electron transfer (ET), O 2 binding …

Plant polyphenol oxidases (PPOs) are ubiquitous copper metalloenzymes with a
biochemistry that has been known for more than a century. By the 1990s, biologists began to …

The more recent reports on polyphenol oxidase in plants and fungi are reviewed. The main
aspects considered are the structure, distribution, location and properties of polyphenol …

Polyphenol oxidase (PPO)‐catalyzed browning reactions are of significant importance in the
fruit and vegetable industry. These reactions proceeding in many foods of plant origin cause …

Plant defences against insect herbivores can be divided into 'static'or constitutive defences,
and 'active'or induced defences, although the insecticidal compounds or proteins involved …

Root and crown rot of cucumber caused by Pythium aphanidermatum can be suppressed by
various rhizobacteria or PGPR (plant growth-promoting rhizobacteria). When cucumber …

Polyphenol oxidase, a copper-containing metalloprotein, catalyzes the oxidation of phenolic
compounds to quinones, which produce brown pigments in wounded tissues. This …

The enzyme polyphenol oxidase (PPO) catalyzes the oxidation of phenolic compounds into
highly reactive quinones. Polymerization of PPO-derived quinones causes the postharvest …

Insect-plant interactions involving the cultivated tomato and its relatives in the genus
Lycopersicon have been intensively studied for several decades, resulting in one of the best …

Background Plants are hotbeds for parasites such as arthropod herbivores, which acquire
nutrients and energy from their hosts in order to grow and reproduce. Hence plants are …