Leej twg nrhiav tau auxin thawj?
Leej twg nrhiav tau auxin thawj?

Video: Leej twg nrhiav tau auxin thawj?

Video: Leej twg nrhiav tau auxin thawj?
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Anonim

Auxins yog thawj cov tshuaj hormones nrhiav pom. Charles Darwin yog thawj cov kws tshawb fawb mus dabble hauv kev tshawb fawb cog qoob loo. Hauv nws phau ntawv " Lub zog ntawm kev txav hauv cov nroj tsuag " nthuav tawm xyoo 1880, nws thawj zaug piav qhia txog qhov cuam tshuam ntawm lub teeb ntawm kev txav ntawm canary nyom ( Phalaris canariensis ) coleoptiles.

Tsuas yog li ntawd, leej twg thawj cais auxin?

Lub Dutch biologist Frits Warmolt tau mus ua ntej piav cov auxins thiab lawv lub luag haujlwm hauv kev cog qoob loo hauv xyoo 1920s. Kenneth V. Thimann (1904-1997) los ua tus ua ntej rau cais ib qho ntawm cov phytohormones thiab txiav txim siab nws cov qauv tshuaj raws li indole-3-acetic acid (IAA).

Tsis tas li ntawd, cov tshuaj cog qoob loo twg yog thawj zaug cais tawm ntawm tib neeg cov zis? cov auxins

Ib yam li ntawd, nws tau nug, leej twg nrhiav tau Phototropism?

Charles Darwin

Leej twg nrhiav tau cytokinin?

Cytokinins tau tshawb pom los ntawm F. Skoog , C. Miller thiab cov neeg ua haujlwm sib koom ua ke thaum xyoo 1950 yog qhov tseem ceeb uas txhawb kev faib cell (cytokinesis). Thawj cytokinin pom yog adenine (aminopurine) derivative hu ua kinetin (6-furfuryl- aminopurine; Fig.

Pom zoo: