lignification

And how is this process of lignification programmed and regulated ?

The differences between modern Chlorophyta and vascular land plants cannot be explained in full on the basis of lignification alone.

Observations: Withholding water from air-grown cucumber seedlings enhances lignification (table 5).

Significance: The inability to realize a potential for lignification means that (a) it never developed or (b) it is not now operational.

The cellular makeup of the leaves shows evidence of lignification, and the leaves themselves are somewhat stiff.

This tissue is usually one to several layers thick, with cells walls of uneven thickness due to uneven lignification.

Conceivably, the capability for lignification only appeared among evolving wetlands or intertidal populations in latent (repressed?)

In ruminant nutrition, depending on the extent of lignification of the cell wall, pectin is up to 90% digestible by bacterial enzymes.

They are reactive intermediates directly involved in the process of lignification (creation of complex lignin polymers) in trees.

The inference drawn (earlier) from size-lignin relations that lignification is a function of gravitational load is here confirmed usingg as the variable.

This white crystalline solid is a metabolite in conifers, serving as an intermediate in cell wall lignification, as well as having other biological roles.

Survival of these roots may have been enhanced by greater lignification and/or suberization of cortical or epidermal cells, or perhaps they were located in resource-rich microsites.

- Wardrop, A. B.; and Bland, D. E.: Process of Lignification in Woody Plants.

Hyperhydricity (previously known as vitrification) is a physiological malformation that results in excessive hydration, low lignification, impaired stomatal function and reduced mechanical strength of tissue culture-generated plants.

Significance: Even the smallest moss contains genetic information for lignification, but only those extended sufficiently above the surface plane encounter mechanical stresses sufficient to induce its redeployment into the upright axis.

In its apparent opposition to the ascetic ideal, it has succeeded merely in demolishing the ideal's "outworks, sheathing, play of masks, [...] its temporary solidification, lignification, dogmatization" ( 25).

GROUP AND HABITAT RELATIONS IN LIGNIFICATION.

- Chen, N.; Siegel, S. M.; and Siegel, B. L.: Gravity and Land Plant Evolution -Experimental Induction of Lignification by Simulated Hypergravity and Water Stress.

GRAVITY, LIGNIFICATION, AND LAND PLANT EVOLUTION.

The aborted seeds of Thomcord are small, but in some years they can become sclerified (a thickening and lignification of the walls of plant cells and the subsequent dying off of the protoplasts), making them more noticeable inside the medium-soft flesh.

OXYGEN AND WATER RELATIONS IN CUCUMBER LIGNIFICATION.

Typical symptoms include discoloration and necrosis of leaf veins and leaf blades, downward curling of leaves, lack or incomplete lignification of shoots, stunting and necrosis of shoots, abortion of inflorescences and shrivelling of berries.

Seedlings will flush new growth within two to four weeks after lignification; when conditions are ideal, especially in high light environments, the first flush may add up to eight simple leaves and 5-10 cm of stem growth, with new leaves much larger and more elongate than first leaves.

They will observe the lignification of the stems as they turn from being flexible and green to hard, woody and brown (for many varieties but not all) indicating that vine has completed its work in developing its "offspring" grape clusters and has started to store carbohydrates and resources for its next growing season.