Nyob rau hauv cov nroj tsuag cov receptor rau ntes photoperiod yog?

Cov txheej txheem:

Nyob rau hauv cov nroj tsuag cov receptor rau ntes photoperiod yog?
Nyob rau hauv cov nroj tsuag cov receptor rau ntes photoperiod yog?
Anonim

Ntau cov paj ntoo (angiosperms) siv cov protein ntau ntawm cov photoreceptor, xws li as phytochrome lossis cryptochrome, kom nkag siab txog kev hloov pauv raws caij nyoog nyob rau hmo ntev, lossis photoperiod, uas lawv coj los ua lub cim rau paj..

Cov xim twg yog lub luag haujlwm rau kev kuaj pom lub sijhawm ntawm cov nroj tsuag?

Phytochrome yog cov xim cog qoob loo pom nyob rau hauv cov paj ntoo uas tuaj yeem kuaj pom qhov pom lossis tsis pom lub teeb thiab koom nrog kev tswj hwm ntau cov txheej txheem uas txuas rau hnub ntev (photoperiod) xws li Raws li cov noob germination thiab pib ntawm flowering i.e. photoperiodism.

cov nroj tsuag txiav txim siab photoperiod li cas?

Nyob rau hauv cov nroj tsuag no, qhov sib txawv ntawm photoperiod yog ntsuas los ntawm kev cuam tshuam ntawm circadian-clock-regulated Cheebtsam, xws li CONSTANS (CO), thiab lub teeb signaling. Cov kev sib cuam tshuam tshwm sim nyob rau hauv qee hnub ntev, raws li yav dhau los kwv yees los ntawm tus qauv sab nraud coincidence.

Dab tsi yog lub teeb receptors hauv cov nroj tsuag?

Nroj tsuag muaj ntau lub teeb xiav-ntsuab receptors, uas tswj hwm qhov sib txawv ntawm kev loj hlob thiab kev loj hlob. Cov kev tshawb fawb tsis ntev los no tau txheeb xyuas peb qhov receptors: cryptochrome 1, cryptochrome 2 thiab phototropin.

Qhov chaw ntawm kev nkag siab ntawm photoperiod hauv cov nroj tsuag yog dab tsi?

Qhov chaw nkag siab ntawm photoperiod yog leaves. Cov tshuaj hormone florigen, uas yog lub luag haujlwm rau paj, inducesflowering raws li nws migrate los ntawm nplooj mus tua apices ntawm induction ntawm yuav tsum tau photoperiods.

Pom zoo:

Nthuav cov khoom
Isomorphous tseem hu ua?
Nyeem ntxiv

Isomorphous tseem hu ua?

··mor·phous. (ī'sō-mōr'fŭs) Muaj tib daim ntawv lossis zoo li qub, lossis ua morphologically sib npaug. Synonym(s): isomorphic. Yim hu ua isomorphous? (ntawm ib tug compound los yog ntxhia) muaj peev xwm ntawm crystallizing nyob rau hauv ib daim ntawv zoo ib yam li lwm cov compound los yog ntxhia, siv tshwj xeeb tshaj yog cov tshuaj muaj feem xyuam rau lawv tsim kawg cov tswv cuab ntawm cov kev daws teeb meem.

Yuav tsum magneto yuav hauv av?
Nyeem ntxiv

Yuav tsum magneto yuav hauv av?

Yog li nws yog ib qho tseem ceeb kom paub tseeb tias cov hlau nplaum yog cov hauv av zoo. Koj yuav tsum tsis txhob ua tus kws kho tsheb lossis khawb rau hauv lub cav kom paub tseeb tias P-lead txuas zoo. … Yog hais tias lub cav tso tawm thaum koj tig tus yuam sij rau OFF koj tuaj yeem tso siab tau tias cov mags yog av.

Tus me nyuam zombie cov zos loj hlob?
Nyeem ntxiv

Tus me nyuam zombie cov zos loj hlob?

Tsis zoo li lwm tus menyuam mos hauv qhov kev ua si, lawv nyob li menyuam mos mus ib txhis thiab yuav tsis loj hlob mus rau "cov neeg laus" zombie neeg nyob. Yuav ua li cas kom tus menyuam zombie loj hlob? Yog ib tug me nyuam neeg hauv zos raug tua thaum lub sij hawm siege, nws kuj yuav ua ib tug me nyuam mos zombie zos.