Tobacco mosaic ntawm txiv lws suav. Yuav daws qhov teeb meem no li cas?

Cov txheej txheem:

Tobacco mosaic ntawm txiv lws suav. Yuav daws qhov teeb meem no li cas?
Tobacco mosaic ntawm txiv lws suav. Yuav daws qhov teeb meem no li cas?

Video: Tobacco mosaic ntawm txiv lws suav. Yuav daws qhov teeb meem no li cas?

Video: Tobacco mosaic ntawm txiv lws suav. Yuav daws qhov teeb meem no li cas?
Video: Cov hluas lo peb koom tes by TMV 2024, Plaub Hlis Ntuj
Anonim

Muaj tseeb ntau ntawm cov uas muaj lawv lub vaj tsawg kawg ib zaug yuav tsum pom qhov tshwm sim ntawm tus kab mob luam yeeb mosaic. Hauv kab lus no, koj yuav kawm paub tiv thaiv tus kab mob no hauv txiv lws suav.

Brief keeb kwm yav dhau

Thawj zaug, tus kab mob no tau sau tseg thaum xaus ntawm lub xyoo pua 19th nyob rau hauv cov txheej txheem ntawm kev haus luam yeeb. Cov cim ci ntsa iab tshwm ntawm cov kab mob. Thaum lub sij hawm, nws pib poob zoo thiab nws thiaj li tuag. Tom qab ntawd, tus kab mob maj mam kis mus rau cov nroj tsuag nyob sib ze, thiab tom qab lub sijhawm luv luv, tag nrho cov nroj tsuag tsis tsim nyog rau kev cog qoob loo ntxiv.

luam yeeb mosaic
luam yeeb mosaic

Tsuas muaj nyob rau lub sijhawm ntawd txoj kev tawm tsam tau suav tias yog kev puas tsuaj tag nrho ntawm cov kab mob. Xws li kev ntsuas tau tso cai rau cov nroj tsuag kom khaws cia. Ntau xyoo tom qab tshawb pom tus kab mob no, Dr. Ivanovsky tswj xyuas nws qhov ua rau. Nws tau dhau los ua tus kab mob luam yeeb mosaic.

Kev txhim kho mechanism thiab biology

Tus neeg sawv cev ntawm tus kab mob no yog tus cwj pwm los ntawm kev tiv thaiv sab nraud. Nws tau pom tias tus kab mob nomuaj peev xwm nyob twj ywm txawm tias kub siab.

luam yeeb mosaic virus
luam yeeb mosaic virus

Tobacco mosaic tag kis cov ntaub so ntswg ntawm cov cellular. Qhov ua rau nws tshwm sim yog suav tias yog ib feem ntawm cov chlorophyll thiab kev puas tsuaj rau chloroplasts. Raws li plastids raug rhuav tshem, qib carbohydrate txo qis. Yog li ntawd, cov txheej txheem ntawm kev tuag ntawm ib tus neeg cov ntaub so ntswg yog qhib. Cov kab mob ua rau tus kab mob yog Solanum virus 1, Cummis virus 2 thiab Nicotina virus 1.

Cov tsos mob tseem ceeb

Thaum pib, cov nplooj, uas cov luam yeeb mosaic tshwm sim, ua pob. Spot xim yuav txawv. Lawv yog cov dawb, ci ntsuab los yog lub teeb daj. Maj mam, cov nplooj pib wrinkle thiab deform, tau ib tug filamentous los yog fern zoo li.

Tomato Tobacco Mosaic
Tomato Tobacco Mosaic

Tsis tas li ntawd, cov luam yeeb mosaic ua rau cov txiv hmab txiv ntoo tawg thiab tsis sib luag. Kev loj hlob thiab kev loj hlob ntawm cov nroj tsuag muaj kab mob qeeb. Vim yog kev ua txhaum ntawm dej metabolism, nplooj thiab stems qhuav tawm. Cov tub hluas tua thawj zaug. Cov txiv hmab txiv ntoo puas tig xim av thiab pib rot.

Tus kab mob tshwm sim li cas?

Txiv lws suav mosaic tuaj yeem kis tau los ntawm kev sib cuag nrog cov qoob loo uas muaj kab mob lossis kev puas tsuaj uas tshwm sim thaum ua haujlwm. Feem ntau, kev kis kab mob tshwm sim thaum lub sij hawm dhia dej ntawm cov yub tuab.

luam yeeb mosaic kho
luam yeeb mosaic kho

Tobacco mosaic kuj muab faib nrogkev pab ntawm vectors xws li txaj kab, aphids thiab lwm yam kab. Tus kab mob no kis tau los ntawm cov noob thiab txiv hmab txiv ntoo nqa los ntawm cov tsiaj thiab noog. Lub hauv paus yug me nyuam rau kab mob yog cov av nyob hauv qab cov hauv paus hniav ntawm cov txiv lws suav muaj kab mob. Qhov no yog vim qhov tseeb tias cov nroj tsuag tseem tuaj yeem khaws cia hauv nws. Mosaic tsim tshwj xeeb tshaj yog nyob rau hauv tej yam kev mob ntawm high humidity. Nws tau raug tsim tsa tias cov dej nag ntws los ntawm nplooj ntawm cov nroj tsuag muaj kab mob tuaj yeem dhau los ua tus kab mob.

Tobacco mosaic: kho thiab tiv thaiv

Tus kab mob no tuaj yeem rhuav tshem li 20% ntawm tag nrho cov qoob loo. Yog li ntawd, nws yuav tsum tau tawm tsam. Txhawm rau tiv thaiv koj cov nroj tsuag, koj tsuas yog yuav tsum siv cov khoom cog zoo. Noob, thawv thiab lwm yam cuab yeej vaj yog pom zoo kom kho nrog ib tug tsib feem pua ntawm kev daws ntawm poov tshuaj permanganate. Xws li kev siv yuav tsum tau ua plaub hnub ua ke.

Txhawm rau tiv thaiv kev kis kab mob ntawm cov qoob loo yav tom ntej, kev tiv thaiv yuav tsum tsis txhob muab tso tseg. Yog li, nws yog ib qho tseem ceeb uas yuav tsum tau txhaj tshuaj tiv thaiv cov txiv lws suav nrog kev nruj nruj. Thaum cog cov nroj tsuag hauv tsev cog khoom, kev tiv thaiv tsim nyog yuav tsum tau ua. Txhawm rau tshuaj tua kab mob, nws raug nquahu kom soak lawv ua ntej hauv nees nkaum feem pua ntawm cov tshuaj hydrochloric acid thiab yaug kom huv si hauv dej huv. Koj yuav tsum tau muab cov av los ntawm cov dej npau npau rau ob lossis peb teev.

Tsawg kawg ib zaug ib lub lim tiam, cov noob raug pom zoo kom kho nrog mis nyuj diluted nrog dej zoo tib yam hauv qhov sib piv ntawm 1:10. Tshaj tag nrhontawm lwm yam, nws yog ib qho tseem ceeb kom ua raws sij hawm hloov cov av nyob rau hauv lub tsev xog paj, tshem tawm ib tug kaum-centimeter txheej ntawm nws nrog rau cov seem ntawm cov nroj tsuag.

Ib lub lis piam ua ntej cog hauv av thiab kaum plaub hnub tom qab nws, cov yub yuav tsum tau txau nrog ib feem pua ntawm cov tshuaj boric acid. Ua tsaug rau qhov no, nws yuav ua rau cov kab mob tiv taus ntau dua. Kev ntsuas tsom mus rau kev puas tsuaj ntawm cov kab uas tuaj yeem dhau los ua cov neeg muaj peev xwm ntawm cov kab mob mosaic tsis tuaj yeem tsis quav ntsej. Tsis tas li ntawd, txhawm rau tiv thaiv qhov yuav kis tau ntawm cov txiv lws suav mosaic, cov kws tshaj lij pom zoo kho cov tsev cog khoom, sau thiab hlawv cov nplooj caij nplooj zeeg thiab cov cag ntoo qub.

Pom zoo: