2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Qhov tseeb, koj tau pom qhov tshwm sim hu ua "guttation", uas cov nroj tsuag tawm dej los ntawm cov qauv hu ua 'hydathodes" ntawm cov npoo los yog cov lus qhia ntawm nplooj nplooj. Hauv kev nkag siab, guttation yog Niam Txoj kev tso cai rau cov nroj tsuag los txo cov dej siab uas tuaj yeem tsim hauv lawv cov ntaub so ntswg hauv qee yam xwm txheej.
Yuav ua li cas rau guttation?
txheej txheem ntawm guttation tshwm sim thaum cov hauv paus hniav ntawm cov nroj tsuag nqus dej los ntawm cov av. Qhov no tsim lub siab nyob rau hauv cov nroj tsuag, thiab cov dej raug yuam tawm los ntawm lub hydathodes. Raws li cov txheej txheem no tshwm sim, cov dej khaws cov tshuaj thiab tsis yog dej xwb; hu ua xylem sap.
Lub luag haujlwm ntawm kev cog qoob loo hauv cov nroj tsuag yog dab tsi?
Ib yam tseem ceeb heev yog cov nroj tsuag yuav tsum sib npaug ntawm cov dej thiab cov as-ham uas lawv noj hauv. Cov txheej txheem los ntawm cov nroj tsuag sib npaug ntawm cov dej uas lawv noj hauv yog hu ua guttation. Nroj tsuag xws li nyom, nplej, txiv lws suav thiab lwm yam: muaj lub vascular system. Hauv cov nroj tsuag no, cov dej sib sau ua ke ntawm cov nplooj.
Cov kua dej twg tsim thaum lub plab zom mov?
dej yuav tsuj hauv cov nroj tsuag, tsim kom muaj lub hauv paus me ntsis. Lub hauv paus siab yuam kom qee cov dej tawm mus los ntawm cov nplooj ntoo tshwj xeeb lossis cov qauv ntug, hydathodes lossis cov qog dej, tsim cov tee.
Dab tsi pab hauv plab?
Mechanism of Guttation
Vim li ntawd, stomata uas muaj dej puv raug yuam tawm los ntawm lub hauv paussiab. Cov kua raug yuam tawm ntawm qhov pores qhov twg lub stomata tsis muaj kev tiv thaiv. Hloov cov hlwb kuj tuaj yeem pab txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm
Pom zoo:
Nyob rau hauv cov nroj tsuag cov receptor rau ntes photoperiod yog?
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.
Kev ua pa tshwm sim nyob rau hauv cov nroj tsuag nyob qhov twg?
Nyob hauv ib puag ncig ntuj, cov nroj tsuag tsim lawv cov zaub mov kom ciaj sia. Raws li nrog photosynthesis, cov nroj tsuag tau oxygen los ntawm huab cua los ntawm stomata. Kev ua pa tshwm sim nyob rau hauv mitochondria ntawm lub cellnyob rau hauv lub xub ntiag ntawm oxygen, uas yog hu ua "
Nyob hauv cov nroj tsuag cov organic acids yog decarboxylated ntawm?
Reaon: Orgnaic acids yog decarboxylated thaum hmo ntuj. Dab tsi yog qhov photosynthesis adaptation ntawm C4 nroj tsuag thiab CAM nroj tsuag zoo sib xws? Yog vim li cas: Stomata ntawm CAM cov nroj tsuag qhib thaum nruab hnub. Cov nroj tsuag CAM puas siv Rubisco?
Nyob rau hauv vernalisation flowering nyob rau hauv cov nroj tsuag yog?
Vernalization (los ntawm Latin vernus, "ntawm lub caij nplooj ntoos hlav") yoginduction ntawm cov nroj tsuag flowering txheej txheem los ntawm raug rau lub caij txias ntawm lub caij ntuj no, los yog los ntawm ib qho khoom sib npaug.
Cov nroj tsuag sab hauv tsev hauv cov nroj tsuag?
Cov nroj tsuag zoo tshaj plaws hauv tsev muaj xws li hauv qab no: Aglaonema - Nws yog qhov txaus nyiam, zam lub teeb qis, thiab tsis loj hlob sai. Aspidistra - Koj yuav tsum tsis txhob muab dej ntau thiab nws yuav ua rau lub teeb qis. … Succulent - Nco ntsoov tias koj muab lub teeb ci rau lawv.
