Researchers discover chemical compounds that affect plant growth
...er to 34, then down to 4 chemicals, which affected
gravitropism and the movement of proteins through membranes within the plant cell. . Only one of these resembled auxins, a plant-produced growth hormone involved in gravitropic responses, while two of the four did not work through known auxin pathways. One of th...
Root cap
...o respond to gravity. The root cap is vital for
gravitropism since it contains cells with sensors called statoliths, which are amyloplasts packed with starch . Full article >>> meristem - a region of rapid mitosis , which produces the new cells for root growth. root cap - a sheath of...
Gravitropism
... the first to document that roots show positive
gravitropism and stems show negative
gravitropism . Full article >>> Gravitropism also involves the unequal distribution of auxin. Wh...
Geotropism
... the first to document that roots show positive
gravitropism and stems show negative
gravitropism . Full article >>>...
Cultivar
...mutants for mechanisms thought to be required for
gravitropism . Usually these are trees that have a weeping or pendulate growth habit. Full article >>> Scientists have given a gene from the bacterium Salmonella to cultivar s of soybeans, corn, canola, and cotton to degrade the pesticide glypho...