Leucoplasts aiki. Avilable leucoplasts

Daya daga cikin matakai ne na wakilan da shuka mulki ne gaban a cikin kwayoyin jikinsu na musamman Tsarin - plastids. Sun hada da chloroplast, chromoplasts da leucoplasts, tsarin da ayyuka na wanda za a tattauna a cikin labarin.

Mene ne plastids

Wasu gabbansa kira plastids na shuka Kwayoyin, fungi da kuma wasu protozoa. Wannan maraƙi taso keya siffofi da cewa suna da wani Semi-m tsarin. Sun iya interconvert juna. Alal misali, leucoplasts, tsarin da ayyuka na wanda canji a ƙarƙashin rinjayar hasken rana kai tsaye ana tuba a cikin chloroplast. Mutane da yawa sun lura cewa dankalin turawa, tubers zeleneeyut. Wannan shi ne sakamakon irin wannan ban mamaki canji. Amma yin amfani da irin wannan samfurin a cikin abinci ne ba shi daraja. Tare da chloroplast a tubers adana guba - da alkaloid solanine. Yana iya sa mai tsanani ci abinci mai guba, kuma shi ne musamman kawo hadari ga yara.

A lokacin ripening 'ya'yan itatuwa da kayan lambu ma ya auku interconversion na plastids. Kawai a cikin wannan hali suna kafa daga leucoplasts chromoplasts kayyade launi na sassa daban-daban na shuka: rawaya, ja, ruwan hoda, da shunayya, da sauransu ..

iri plastids

Leucoplasts plastids chromoplasts, chloroplast bambanta da biyu da tsarin da kuma ayyuka yi. Amma duk suka taka muhimmiyar kuma irreplaceable rawa. A ikon goya launi zuwa sassa daban-daban na shuka saboda gaskiyar cewa chromoplasts dauke da daban-daban pigments - colorants.

Corolla haske petals na mafi shuke-shuke - hankula hujja da cewa. Irin wannan launi tare da furanni da kamshi jawo kwari domin pollination da kuma hadi da ya biyo baya da samuwar da 'ya'yan itatuwa.

Green plastids dauke da pigment chlorophyll, wanda kayyade ta launi. A gaban wannan abu (tare da carbon dioxide, ruwa da kuma hasken rana) ne kafin for kwarara na photosynthesis tsari. A tafarkinsa shuke-shuke samar da carbohydrates da oxygen. Na farko shi ne a gare su a tushen abinci mai gina jiki, girma da kuma ci gaba. A gas oxygen dukkan halittu, daga kwayoyin da mutane, ana amfani da numfashi.

tsarin leucoplasts

Leucoplasts ne colorless wasu gabbansa. Bã su da wani mai siffar zobe siffar. membrane tsarin a ci gaba wajen weakly. A siffar iya bambanta a kan daidai kawai a lokacin da a da cytoplasm fara samar da wata isasshe manyan sitaci hatsi. Leucoplasts plastids kunshe ne a cikin Stocking up babban shuka nama. Yana Forms da dalilin gyare-gyare ga shoot - tubers, kwararan fitila, rhizomes. leucoplasts aiki da kuma tsare ta irin wannan fasali na tsarin. A cikin wadannan da wasu gabbansa rami iya tara da yawa muhimmanci na gina jiki. Leucoplasts kamar yadda duk plastids ne da wasu gabbansa dvuhmembrannymi. Duk da haka, na ciki da harsashi ba ya samar da jinsin protrusions cikin tsarin.

Leucoplasts - eukaryotic Kwayoyin. Wannan yana nufin cewa a cikin cytoplasm DNA din da cewa kawo kwayoyin bayanai dauke a cikin ado core.

leucoplasts aiki

Wadannan plastids ne na musamman. Dangane da irin, su ne iya tara da haduwa daban-daban irin takin abubuwa. Alal misali, carbohydrate sitaci dauke da amyloplasts. Wannan abu ne da hankula ga duk shuke-shuke, kamar yadda kafa daga glucose, samu da photosynthesis. Oleoplasty amfanin da kantin sayar da mai. Liquid fats an kuma samu a wasu shuka Kwayoyin da ake kira mai. Proteinoplast dauke da sunadarai. Yana kawo irin wannan aiki shi ne tsarin leucoplasts. Bugu da ƙari kogo da ake bukata domin stock da kuma ajiya na daban-daban abubuwa da suka dauke enzymes. Wadannan nazarin halittu catalysts ne iya hanzarta halitta sinadaran halayen, amma ba wani ɓangare na da kayayyakin. Ƙarƙashin rinjayar, misali, wata sauki carbohydrate glucose polysaccharide sitaci ne kafa. Lokacin da yanayi bayyana wanda ya fi karfinsu ga kwarara daga photosynthesis, ya sake cleaved zuwa monomers da kuma amfani da shuka rayuwa tafiyar matakai.

Ina leucoplasts

Tun da babban aiki leucoplasts - shi ne jari na abubuwa, da waɗannan da wasu gabbansa suna kunshe a cikin thickened da kuma fleshy sassa na shuke-shuke. Musamman arziki a cikin dankalin turawa, tubers. Kowane dalibi ne iya gudanar da ingantaccen dauki ga sitaci yake kunshe a cikin leucoplasts. Don yin wannan, kawai bukatar sa a kan wani sabo ne yanki na 'yan saukad da na aidin bayani. A karkashin tasirin da take da wannan colorless plastids saya da wani arziki purple launi. Su za a iya gani a karkashin (microscope) ko da a low magnification.

A kwan fitila da shuka ne ma yawa leucoplasts. Saboda da manyan samar da ruwa da kuma carbohydrates irin wannan tushen iya yi ƙaura karkashin kasa da ya fi karfinsu lokaci na fari, sanyi da kuma zafi. A lokaci guda dagagge karamin sashi na shuka mutuwa da modified gudun hijira ya zauna yiwuwa. Alal misali, tulips a mako biyu lokaci don yayi girma da kuma ottsvesti. Kuma a sa'an nan a cikin su kwan fitila tara carbohydrates kafa a lokacin photosynthesis kore sassa na spring shuke-shuke.

Su ba togiya da kuma rhizomes. Kowa ya san yadda wuya shi ne ya rabu da mu weeds. Su ne ba ko da tsoro na fari mai tsanani, da ganye da kuma sake dawowa sama da ƙasa. The abu ne cewa, da shuka kanta tasowa a karkashin kasa a cikin wani nau'i na thickened modified gudun hijira tare da elongated internodes. Ya ƙunshi wani gagarumin adadin leucoplasts, ya kuma inganta samar da abubuwa.

A endosperm na tsaba, fungal spores, ova mafi girma shuke-shuke yi su ayyuka da shi ne saboda kasancewar plastids data.

Origin leucoplasts

A gaban leucoplasts har yanzu a cikin tayi nama na shuka kwayoyin wanda ba a gama ba. Kuma suka kafa da ake kira proplastids. Wadannan Tsarin ne precursors dukkan wadannan da wasu gabbansa. Da farko, suna located in meristem - da ilimi masana'anta shuke-shuke. Proplastids corpuscles ne microscopic a size har zuwa 1 micron. Wannan dukan sarkar da interconversion daga wadannan organel shuka Kwayoyin fara da su.

Saboda haka, babban aiki ne ga leucoplasts kira, jari da kuma ajiya na daban-daban na Organic abubuwa dole ga wanzuwar rayayyun kwayoyin halitta.