Plant physiology

Poikilohydry is the lack of ability (structural or functional mechanism) to maintain and/or regulate water content to achieve homeostasis of cells and tissue connected with quick equilibration of cell/tissue water content to that of the environment. The term is derived from Ancient Greek ποικίλος (poikílos, “spotted or variegate”).

Ascent of sap in plants

thumb|The Arabidopsis thaliana|Arabidopsis mutant (FLU), unable to control biosynthesis of protochlorophyllide, glows red in the blue light.

thumb|Drawing of a Potometer A potometer (from Greek ποτό = drunken, and μέτρο = measure), sometimes known as transpirometer', is a device used for measuring the rate of water uptake of a leafy shoot which is almost equal to the water lost through transpiration. The causes of water uptake are photosynthesis and transpiration.

thumb|Camponotus schmitzi in association with its [[myrmecophyte host, Nepenthes bicalcarata]]

thumb|300px|right|Four pears featuring various degrees of russeting Russeting or russetting is an abnormality of fruit skin which manifests in russet-colored (brownish) patches that are rougher than healthy skin. It is a common feature in apples and pears. Russeting is typically an undesirable trait, which reduces the storage life of fruits and makes their appearance unattractive to consumers, although some cultivars, so-called russet apples, are appreciated for the feature.

conducting tissue in moss

cold weather requirement in agriculture

thumb|right| An abscission scar on the trunk of Castilla where a branch has been shed Cladoptosis (Ancient Greek "branch", "falling" [noun]; sometimes pronounced with the p silent) is the regular shedding of branches. It is the counterpart for branches of the familiar process of regular leaf shedding by deciduous trees. As in leaf shedding, an abscission layer forms, and the branch is shed cleanly.

thumb|A tree that has grown sideways due to the wind Thigmomorphogenesis involves plants altering their growth and development in response to mechanical stimuli, such as touch, wind, or rain. This process begins with the perception of mechanical forces by cellular mechanosensors, followed by their transduction into signal transduction pathways cascades, and culminating in changes in gene expression and hormone activity. The response integrates diverse molecular components, including mechanosensitive ion channels, receptor-like kinases, the cytoskeletal elements, phytohormones, and transcriptio

type of plant tissue culture

Component of photosynthesis

detachable food body produced on the epidermis of certain plants