Root moriri - e ... Mesebetsi ya moriri motso

Rarahaneng liphetoho tshilong ya dijo ka dimela hlalosa sebopeho khethehileng ea litho tsa 'mele ea bona: motso, bakoang, lekhasi, e bitsoang makala vegetative. Ba na le boikarabelo ba tala, transpiration, osmosis. Ka pampiri ena re ithuta sebopeho le mosebetsi wa dimela likarolo tse kang moriri motso. Tsena ke mehaho e le habohlokoa hore beha absorption ea metsi le matsoai letsoai mobung.

Root - the vegetative mele oa dimela peo

Karolong e ka tlas'a lefatše tsa gymnosperms le dimela lipalesa e tšoantšetsoang ke mefuta e 'meli ea tsamaiso motso: liboto le fibrous. Ba bopilwe ka sehlooho, lehlakoreng, paranasal (ka monocots) ya metso 'me palo e khōlō ea mehaho e nyenyane le lebitso la - moriri motso.

Ho a hlomelang a manyenyane rhizodermis (rizodermy) emeloang ke lisele tse ba se nang balekane. Ba ba bitsoa "trihoblasty". Ka tšehetso le ho phetha ho sebetsa ha ho boloka dintho manyolo, absorption le katiso (tse bitsoang suckers na ciliegia, malandro), motso le tsela e sa tobang ka setotsoana dithulaganyo tshilong ya dijo tse kang transpiration, respiration, tala.

libaka fire

Ba le motso ka sehloohong na e rarahaneng sebopeho anatomical, le dikarolo tsa lona tse sa tšoaneng phetha mesebetsi ngata. Ntlheng ena, ba ile ba ba bitsoa ka libaka. Ka lebaka la ho sebetsa ha moriri motso (e phahameng tensile karolo kenyelelitsoe sebakeng kgolo ya) le lesihla la protuberances koahela lesela. sebaka sena e bitsoa sebaka fire. Ho ranges ho tloha disentimetara isa ho a mararo. Sebakeng sena ka Range ho tloha 200 ho ea ho 1500 le rhizodermis ho feta o molelele o liseleng. Ba nakoana: ho tloha lihora tse seng kae ho matsatsi a 20, 'me joale shoa. Ka nako e tšoanang ba dibopeho rizodermy e ncha ba thehoa. Cage motso moriri ka kopana le fatše, ea nang le bokhoni ea absorption ea limolek'hule metsi le ho qhibiliha letsoai ka mokgwa wa sodium, chloride, magnesium, anions nitrate, nitrite le asiti phosphate.

Rhizodermis le litšobotsi tsa sebopeho lona

Sena dinama tse nyenyane tse dimela e bua ka sehlopha se seng sa meristems mathomo. E sebetsang ka lisele tse fission fana likarolo tsa lona eaba ba etsa tse kang moriri motso. O hlahellang teng lera ka ntle tsa lesela thuto ya motso - fellogene. Thehoa ka nako ya ho hōla ka a shoa nako rizoderma. Sebakeng sa eona a thehoa lisele tse mocha periderm - mahareng barbotage lesela hore ke khone ho fire ditharollo mobu. New moriri motso, ho sebetsa ha eo - ea absorption ea metsi le matsoai letsoai, ha thehoa ho tswa ho rhizodermis overlying karolo.

Mesebetsi ya moriri motso

dibopeho tsena di thehoa ho tswa protrusions rizodermy le emela lisele le 'ngoe ea meristem mathomo khona ho absorption ea tharollo mobu. Ha nako e ntse, ba huleloa, le lera seleng ea fetoha ba nang le bokhoni ba phallang ka hare ditharollo bobeli hypotonic le haholo khobokellane letsoai. Ha re etsa menontsha, tse kang naetrojene le potasiamo mobung eketsa ea mahloriso tsa ions ammonium, nitrate potassium Ion. E hlaha nakong ea selemo, ha e ntse e ke nako e molemo ea bakeng sa tshebediso ya manyolo tsa mofuta ona. Mobu tharollo tse nang le mefuta e ka holimo ho tse thathamisitsoeng ya ions ka cytoplasm trihoblasta kenella ka hare ho ka ho diffusion etseng letho.

Hoetla phosphorus manyolo, ho nka nako e telele ho qhala, a etsa hore ho absorption ea moriri motso Ion anions phosphate le asiti metaphosphoric. Le ho qala ha amohang phallo ho elella bofelong ba February - mathoasong a March, hoo e batlang e le bophahamo ba modumo kaofela ea lisele rizodermy vacuoles tletse, motheo ile a khaotsa ho ea tlhōrōng ea moriri motso. Ka seleng e tšoanang haholo ke ba nang le bokhoni ba secreting limolek'hule tsa acid manyolo: oxalic, malic. Ba qhibiliha humus likaroloana, eketsa tshebetso absorption. Sebopeho sa moriri motso etsahalang hore ba itime lijo ka ho lekaneng. Ho sa tsotellehe khutšoanyane ea bophelo, ba ba khona ho monya e ngata ea tharollo mobu. Mohlala, Woody dimela fire sebakeng se ka bang 120 ho 640 limithara ^2.

trihoblasty ke eng

Nakong e fetileng, re ithutile sebopeho le litšobotsi oa mesebetsi e ka sehloohong ea maqephe a dimela dinama tse nyenyane tse. Ho na le mokato le 'ngoe ea lisele bitsoa rhizodermis, ho bua leshano ka e monyenyane le metso lateral, ho hōla ho tloha metso ka sehloohong kapa adventitious. Root moriri - dinama tse nyenyane tse ena hlomelang a manyenyane ho bitiela emetseng sebopeho haholo o molelele o. Re lokela ho hopola hore lisele tsohle rhizodermis - pluripotent, le khonang ho eaba ba etsa motso moriri. Empa ba ile ba ba thehoa feela ho tloha trihoblastov - rhizodermis protrusions ho ba le mofuta o mong oa utloe nyenyane.

Barbotage dinama tse nyenyane tse nang le boikarabelo bakeng sa sebopeho trihoblastov nile ha cytologic litšobotsi tsa sebopeho: ka lona le ka liseleng ho hloka ho cuticle le teteaneng leboteng selulose. The cytoplasm na le palo e khōlō ea organelles hore synthesize limolek'hule ATP - the mitochondria. Ba hlokahala hobane absorption ea metsi le matsoai letsoai hloka matla. Trihoblasty le bona ba na stomata - koahela likarolo dinama tse nyenyane tse nang le boikarabelo bakeng sa dithulaganyo hema dimela le transpiration - metsi mouoane.

Ka ditharollo letsoai phunyeletse semela metso

Trihoblast le thuthugang ho tloha e le moriri motso, e leng ha e le mosebetsi ya - ho absorption ea metsi le matsoai letsoai ho tswa ho mobu, ka kgona ho tla nkoa e le osmotic tsamaiso. Ho haella ha e sa tenyetseheng seleng ea leboteng le lera elasticity ntsetso-peleng tsamaisa limolek'hule tloha tikolohong Link ka cytoplasm ena. Ka itseng moriri organelles motso - vacuoles ipokellela ditharollo hypertonic ya tsoekere, fructose, malic, citric le acid oxalic.

Le lera le tonoplast lisele tse ba khetha semipermeable. Ka lebaka leo, tharollo mobu, ho ba ka tlaase ho moo khobokellane ho feta amohang seleng e, ho ea ka melao ea ea osmosis le kenella ka hare ba le motso moriri. Metsi ditharollo bokgoni ba tla tswa ho mobu phahame ho feta palo ena e ka tonoplast, 'me ka' nang osmotic tlase. Metsi le matsoai matsoai trasportiruyutsya ea lisele tsa moriri motso xylem. Sena lesela conductive eaba ba etsa dimela linkho - kapa trachea tracheids. Ho ea ka tharollo mobu e susumelletsa ho fihlela ho bakoang ho makhasi le likarolong tse ling dimela.

Swordplay le boleng tsa lona

Ho eketsa fire sebakeng ea tsamaiso le motso, o lokela ho finyella ho eketsa palo ea metso lateral. rhizodermis bona e nang le trihoblasty le hlahisa e eketsehileng motso moriri. Ho sebelisa keletso ena ho phetha molao feela mokhoa proschipyvaniya motso tlhorong timelitse fihla moo ho arohanang libaka beoang ka holimo le motso cap,. Ho bitsoa sparring. Lewa lena di hlohleletsago kgolo ya likarolo tse lehlakoreng, eo develops palo e khōlō ea moriri motso. Khōlo ea ba le motso bolelele ka sehloohong a kgaotsa. Fetisisa fire libaka sebakeng se na le phello e ntle ka khōlo semela le ntshetsopele, ho eketsa tlhahiso ea eona le solofetsa.

A sehloohong sena a re hlahlobile litšobotsi mehaho ea libaka absorption ea ba le motso oa angiosperms 'me ba fumana ho tsoa se mosebetsi oa moriri le motso, ho hōla ho tloha rhizodermis.