Leaf senescence, a type of programmed cell death, is a complex and highly regulated
process that involves the degradation of macromolecules, including proteins, nucleic acids …

In plant cells, as in all other cells, proteins are submitted to permanent turnover, and the
intracellular content of a given protein depends on its rate of both synthesis and …

Plants are able to utilize nitrogen very economically. The high mobility of this macronutrient
in xylem and phloem allows redistribution throughout the life cycle. The nitrogen demand of …

Leaf senescence is a highly organized process and not a passive decay. Photosynthesizing
mesophyll cells lose their functions in an early phase, while the epidermal layer with the …

Senescence is a highly organized and well‐regulated process. As much as 75% of total
cellular nitrogen may be located in mesophyll chloroplasts of C3‐plants. Proteolysis of …

Publisher Summary This chapter reviews characteristic features of nitrogen metabolism,
especially protein metabolism in the processes of leaf senescence. The nitrogen content of a …

Foliar nutrient resorption (NuR) plays a key role in ecosystem functioning and plant nutrient
economy. Most of this recycling occurs during the senescence of leaves and is actively …

In cellular circumstances under which carbohydrates are scarce, plants can metabolize
proteins and lipids as alternative respiratory substrates. Respiration of protein is less …

As a result of climate changes, land use and agriculture have to adapt to new demands.
Agriculture is responsible for a large part of the greenhouse gas (GHG) emissions that have …

Large numbers of publications have appeared over the last few years, dealing with the
molecular details of the regulation and process of the autophagy machinery in animals …