scientifically document that roots show positive gravitropism and stems show negative gravitropism. That is, roots grow in the direction of gravitational...

to grow towards light (phototropism) and the roots to grow downward (gravitropism). In both cases, the directional growth is considered to be due to asymmetrical...

light and turn green. Amyloplasts are thought to play a vital role in gravitropism. Statoliths, a specialized starch-accumulating amyloplast, are denser...

underground roots, since the roots are not readily observable, and root gravitropism is usually more influential than root hydrotropism. Water readily moves...

mitosporangiophores (sporangiophores). These specialized hyphae usually show negative gravitropism and positive phototropism allowing good spore dispersal. The sporangia...

rotation to negate the effects of gravitational pull on plant growth (gravitropism) and development (gravimorphism). It has also been used to study the...

dark, solid objects and climb them. The combination of phototropism and gravitropism allow plants to grow in the correct direction. There are several signaling...

also sense gravity and respond through auxin pathways, resulting in gravitropism. Over time, roots can crack foundations, snap water lines, and lift sidewalks...

to the presence of statocytes, the root cap enables geoperception or gravitropism. This allows the plant to grow downwards (with gravity) or upwards (against...

functions, helping to guide the growth of plants through the process of gravitropism and influencing the circulation of fluids in multicellular organisms...

These may serve as food storage, and have been shown to be involved in gravitropism in some plants. Suberin Exodermis Epidermis Rost, Thomas L.; Michael...

functions of organisms are mediated by gravity, such as gravitropism in plant roots and negative gravitropism in plant stems, and without this stimulus growth...

This control has been called tropism. A quantitative study of shoot gravitropism demonstrated that, when a plant is tilted, it cannot recover a steady...

Phytochromes can also affect root growth. It has been well documented that gravitropism is the main tropism in roots. However, a recent study has shown that...

downward (in the direction of gravity). This phenomenon is known as gravitropism and it has been shown that, for example, poplar stems can detect reorientation...

white rot induced by the fungus. This is a process known as positive gravitropism. Very large numbers of spores are produced, particularly in spring, with...

of root cap growth that controls early gravitropism in roots. Ethylene seems to be important in gravitropism in shoots, perhaps affecting sensitivity...

gravitational forces provide directional cues for plant and fungal growth (gravitropism), orientation cues for animal migrations, and influence the biomechanics...

can be sufficient to cause gravitaxis. Gravitaxis is different from gravitropism in a way that the latter is more about the growth response of an organism...

techniques for a list of biological experimental techniques. Visualizing gravitropism in Pinus pinaster after artificially inclining the plant. Grip strength...

light sources (phototropism), roots growing in response to gravity (gravitropism), and other tropisms originated because cells on one side grow faster...

Light and Video Microscopy. Attempting to explain photosynthesis and gravitropism, Wayne has developed and promoted a fringe theory of light and gravity...

snakes Surface wave detection Frog hearing Toad vision Plant Photomorphogenesis Gravitropism Artificial Robotic sensing Computer vision Machine hearing...

phenomenon known as negative gravitropism. Poplar stems can detect reorientation and inclination (equilibrioception) through gravitropism. At the root tip, amyloplasts...

Khorana – Golgi apparatus – Gondwana – gradient – gravitational biology – gravitropism – Gregor Mendel – ground tissue – growth curve – Guthrie test habitat...

response to a particular stimulus, such as light (phototropism), gravity (gravitropism), water, (hydrotropism), and physical contact (thigmotropism). Plant...

as well as keeping the plant upright as the plant resists gravity. Gravitropism, along with phototropism and hydrotropism, are traits believed to have...

woody plants, such as thigomorphism (adaptive response to flexure) and gravitropism (the correction of, rather than the support of, lean) and the auxin-controlled...

Rashotte; et al. (February 2000). "Basipetal Auxin Transport Is Required for Gravitropism in Roots of Arabidopsis". Plant Physiology. 122 (2): 481–490. doi:10...

interactions. Some species have been shown to exhibit negative or positive gravitropism, which adds a behavioural dimension to this still poorly understood vertical...