scientifically document that roots show positive gravitropism and stems show negative gravitropism. That is, roots grow in the direction of gravitational...
23 KB (2,782 words) - 14:04, 29 March 2024
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...
8 KB (783 words) - 22:40, 25 August 2024
light and turn green. Amyloplasts are thought to play a vital role in gravitropism. Statoliths, a specialized starch-accumulating amyloplast, are denser...
5 KB (633 words) - 21:37, 7 June 2024
underground roots, since the roots are not readily observable, and root gravitropism is usually more influential than root hydrotropism. Water readily moves...
17 KB (2,286 words) - 08:25, 25 March 2024
Zygomycota (section Gravitropism)
mitosporangiophores (sporangiophores). These specialized hyphae usually show negative gravitropism and positive phototropism allowing good spore dispersal. The sporangia...
29 KB (3,400 words) - 14:22, 20 May 2024
rotation to negate the effects of gravitational pull on plant growth (gravitropism) and development (gravimorphism). It has also been used to study the...
8 KB (1,099 words) - 04:40, 6 February 2024
dark, solid objects and climb them. The combination of phototropism and gravitropism allow plants to grow in the correct direction. There are several signaling...
17 KB (2,027 words) - 18:50, 4 April 2024
also sense gravity and respond through auxin pathways, resulting in gravitropism. Over time, roots can crack foundations, snap water lines, and lift sidewalks...
50 KB (5,855 words) - 22:34, 10 July 2024
to the presence of statocytes, the root cap enables geoperception or gravitropism. This allows the plant to grow downwards (with gravity) or upwards (against...
3 KB (282 words) - 00:53, 20 August 2023
functions, helping to guide the growth of plants through the process of gravitropism and influencing the circulation of fluids in multicellular organisms...
74 KB (7,488 words) - 00:33, 27 August 2024
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...
5 KB (719 words) - 16:21, 5 September 2024
functions of organisms are mediated by gravity, such as gravitropism in plant roots and negative gravitropism in plant stems, and without this stimulus growth...
8 KB (849 words) - 19:28, 18 June 2024
This control has been called tropism. A quantitative study of shoot gravitropism demonstrated that, when a plant is tilted, it cannot recover a steady...
57 KB (7,046 words) - 08:53, 4 September 2024
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...
22 KB (2,831 words) - 16:07, 4 September 2024
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...
16 KB (1,883 words) - 17:17, 31 August 2024
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...
20 KB (2,009 words) - 00:49, 21 June 2024
of root cap growth that controls early gravitropism in roots. Ethylene seems to be important in gravitropism in shoots, perhaps affecting sensitivity...
9 KB (1,227 words) - 20:00, 4 December 2023
gravitational forces provide directional cues for plant and fungal growth (gravitropism), orientation cues for animal migrations, and influence the biomechanics...
210 KB (21,521 words) - 06:09, 3 September 2024
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...
4 KB (462 words) - 20:56, 24 August 2023
techniques for a list of biological experimental techniques. Visualizing gravitropism in Pinus pinaster after artificially inclining the plant. Grip strength...
3 KB (206 words) - 17:14, 10 June 2024
light sources (phototropism), roots growing in response to gravity (gravitropism), and other tropisms originated because cells on one side grow faster...
45 KB (5,263 words) - 00:05, 12 September 2024
Light and Video Microscopy. Attempting to explain photosynthesis and gravitropism, Wayne has developed and promoted a fringe theory of light and gravity...
22 KB (2,277 words) - 03:42, 22 June 2024
snakes Surface wave detection Frog hearing Toad vision Plant Photomorphogenesis Gravitropism Artificial Robotic sensing Computer vision Machine hearing...
8 KB (899 words) - 22:53, 16 June 2024
phenomenon known as negative gravitropism. Poplar stems can detect reorientation and inclination (equilibrioception) through gravitropism. At the root tip, amyloplasts...
48 KB (5,456 words) - 05:11, 30 July 2024
Khorana – Golgi apparatus – Gondwana – gradient – gravitational biology – gravitropism – Gregor Mendel – ground tissue – growth curve – Guthrie test habitat...
19 KB (1,370 words) - 15:31, 11 February 2024
response to a particular stimulus, such as light (phototropism), gravity (gravitropism), water, (hydrotropism), and physical contact (thigmotropism). Plant...
38 KB (4,421 words) - 04:48, 8 July 2024
as well as keeping the plant upright as the plant resists gravity. Gravitropism, along with phototropism and hydrotropism, are traits believed to have...
35 KB (3,803 words) - 07:25, 17 August 2024
woody plants, such as thigomorphism (adaptive response to flexure) and gravitropism (the correction of, rather than the support of, lean) and the auxin-controlled...
5 KB (656 words) - 08:23, 27 March 2024
Rashotte; et al. (February 2000). "Basipetal Auxin Transport Is Required for Gravitropism in Roots of Arabidopsis". Plant Physiology. 122 (2): 481–490. doi:10...
8 KB (967 words) - 22:35, 15 July 2024
interactions. Some species have been shown to exhibit negative or positive gravitropism, which adds a behavioural dimension to this still poorly understood vertical...
67 KB (7,133 words) - 13:32, 14 August 2024