Is transverse transportation non polar transportation, and what is the mode of transportation for no

Lateral transport mainly refers to transport perpendicular to the direction of the plant stem (in a cross-section) from the inside to the outside or in reverse, across the membrane. But look at what molecules can decide whether it is actively transported.

2 Polar transport refers to transport from one end of the morphology to the other (not affected by the direction of the plant) and should belong to active transport.

3. Non-polar transportation, that is, transportation other than polar transportation, can be left and right, up and down, etc. It also depends on what molecules are transported to judge whether it is active transportation.

If you use your active transportation to directly judge, it is somewhat inaccurate.

Auxin transverse transport is non-polar transport.

Polar transport of auxin occurs from the upper end of the morphology to the lower end of the morphology.

Lateral transport refers to the mode of transport in which auxin moves laterally from one side of the stem (light source) to the other (backlight).

Non-polar transport is the mode of transport in the catheter of the laughing part of the plant.

Non-polar transport is the mode of transport in the internal duct of the plant, the plant is divided into morphological and premature end and morphological lower end, polar transport refers to the mode of transport of auxin in the sieve tube can only be transported from the lower end of morphology to the upper end of morphology, and cannot be transported from the upper end to the lower end. Non-polar transport means that it can be transported from the top end to the bottom end or from the bottom end to the upper end, and both transportation directions can be carried out.

Polar transport

Plant root tip auxin transport is special. The polar transport of auxin is divided into two modes, namely apical transport and base transport. On the one hand, auxin is mainly transported from the base to the apex in the middle column cells, that is, to the apex, and in the epidermal part, auxin is transported from the root tip to the root, that is, to the base.

From the perspective of polar transport, transport from root to apex and from apex to root are both polar transport.

Polar transport of auxin: auxin produced at the tip of the shoot is transported downwards and from the root to the apex. Auxin is the only plant hormone with polar transport characteristics, which other analogues do not have.

Although auxin is also produced at the root tip, the amount produced is very small, and the main sensitive depends on transportation, and the polar transport direction is to the apex, resulting in a higher concentration of auxin at the root than at the root.

The above content reference:Encyclopedia – Polar Transport

No. Non-polar transport isPassive transportation

The direction of non-polar transport is determined by factors such as the difference in the concentration of organic matter at both ends.

Transported. Most of the bound auxins in plants.

It is transported through the phloem such as a barrage.

Bound auxin is auxin that is associated with other compounds (sugars, amino acids.

The result is a stored or passivated form of free auxin, which is active and bound auxin is physiologically inactive, and the two can be transformed into each other.

In addition to the polar transport of auxin in plants, it is also found that there is passive auxin transport in plants and non-polar auxin in phloem, and the auxin synthesized by mature leaf locust seeds may be non-polar passive transport through phloem.

In general, the polar transport of auxin is an active process of energy demand, and unlike the polar transport, the non-polar transport is not obviously related to the morphological direction of the plant.

Polar transport refers to the total transport of auxin from the upper end of the morphology to the lower end of the morphology, which cannot be reversed. Polar transport is a kind of local transport mode, such as the short-distance unidirectional transport process between the parenchyma cells of the germ sheath, young stem and young root, which is more meaningful for the regulation of plant life activities.

(1) Different parts: auxin polar transport in germ sheaths, buds, young leaves, and young roots; Non-polar transport through sieve in the phloem in mature tissues.

2) Different directionality: polar transport can only be transported from the upper segment of morphology to the lower end of morphology, and can only be transported in one direction and cannot be reversed. Non-polar shipping does not.

Factors influencing plant growth:

Placing the plant horizontally, due to the action of gravity, the auxin of the root tip and stem tip is first transported laterally, so that the root tip and stem tip are close to the ground with a high concentration of auxin, for the root, the concentration of auxin near the ground is high, inhibiting growth, and the concentration of auxin away from the ground is low, promoting growth, so the root bends and grows downward.

For stems, auxin concentrations near the ground are high and promote growth, while auxin concentrations away from the ground are low and promote growth, but the promotion effect near the ground is more obvious, so the stems bend and grow upwards.

1.The mode of transport of non-polar transport may be through the phloem to transport the land.

2.Non-polar transport is auxin.

In addition to polar transport, there is a passive and non-polar auxin transport phenomenon in the phloem tract.

3.Auxin synthesized from mature leaves may be nonpolar passive transport through the phloem of the wild tank.

Polar transport is the transport of matter from the upper end of the morphology of the plant to the lower end of the morphology. For example, auxin.

Polar transport: auxin produced at the root tip is transported upwards, while auxin produced at the shoot tip is transported downwards.

Non-polar transport means that the transport of substances in the plant body is not affected by the upper and lower ends of the morphology. For example, some mineral elements are preferentially supplied to the growth center.

Lateral transport is the transport of substances through the wood rays or bast rays of the stem of the plant, and because the wood rays and bast rays are parallel to the cross-section of the stem, the transport of the substance through them is also parallel to the cross-section of the stem, which is called lateral transport. For example, water and some mineral elements can be transported laterally.

I think it is possible to call all modes of transportation other than polar transportation non-polar transportation. However, it seems that the terms polar transport and transverse transport are more commonly used, and non-polar transport is not commonly used.

Taking auxin as an example, in the germ sheath, buds, young leaves and young roots, auxin can only be transported from the upper end of morphology to the lower end of morphology, that is, it can only be transported in one direction, which is called polar transport, which belongs to the active transport of cells. In mature tissues, auxin can be transported non-polar through the phloem.

Polar transport is the morphological transport of plant hormones from the upper end to the lower end of the production site, which is a type of active transport.

Active transport is the way in which an organism exchanges intracellular material with extracellular material and consumes energy (ATP)!

Plant hormones are transported from the morphologically upper end to the lower end of the production site.

Like a hanging willow branch.

Auxin is transported upwards from the top below.

Polar transport is active transport, that is, the transport of matter from the upper end of the morphology of the plant to the lower end of the morphology without being transported upside down, it talks about the transport in the vertical direction.

In addition, there is horizontal transportation, which is also active transportation, which refers to transportation on the same level, such as left-to-right or right-to-left transportation.

Non-polar transport is another mode of transport that is different from active transport, which can be understood as passive transport, that is, transport from high concentration to low concentration, its direction is not fixed, it can be up and down, or down to top.