{"id":3369,"date":"2011-10-24T10:15:21","date_gmt":"2011-10-24T07:15:21","guid":{"rendered":"http:\/\/www.islamidavet.com\/kutuphane\/\/?p=3369"},"modified":"2011-10-24T10:15:21","modified_gmt":"2011-10-24T07:15:21","slug":"bitkilerin-genel-ozellikleri","status":"publish","type":"post","link":"https:\/\/www.islamidavet.com\/kutuphane\/bitkilerin-genel-ozellikleri\/","title":{"rendered":"Bitkilerin genel \u00f6zellikleri"},"content":{"rendered":"<p>B\u0130TK\u0130LER <\/p>\n<p>Bitkilerde Adaptasyonlar<br \/>\n Bitkilerde \u00e7evreye uyum;Bitkilerdeki dokular bitkilere g\u00f6re bir tak\u0131m farkl\u0131l\u0131klar g\u00f6sterir. Bitkilerin ya\u015fam ortam\u0131ndaki \u00e7evresel ko\u015fullar geli\u015fmi\u015fli\u011fi ait oldu\u011fu dokularda farkl\u0131la\u015fmalar\u0131n olu\u015fmas\u0131na neden olur.<br \/>\n \u00d6RNEK: Kurak b\u00f6lge bitkisinde<br \/>\nG\u00f6vde k\u0131sa ve kal\u0131n.<br \/>\nK\u00f6k \u00e7ok geli\u015fmi\u015f.<br \/>\nYaprak kal\u0131n ve k\u00fc\u00e7\u00fck y\u00fczeyli.<br \/>\nG\u00f6zenek (stoma) az ve derinde.<br \/>\nYaprak y\u00fczeyi terlemeyi \u00f6nleyen fazla \u0131\u015f\u0131\u011f\u0131 engelleyen t\u00fcylerle \u00e7evrilidir.<br \/>\nEpidermisin d\u0131\u015f \u00e7eperi daha kal\u0131nd\u0131r.<br \/>\nKutik\u00fcla Kal\u0131nla\u015fm\u0131\u015ft\u0131r.<\/p>\n<p>Bitkilerde Analoji : Farkl\u0131 orijine sahip yap\u0131lar\u0131n metamorfozla ayn\u0131 i\u015fi yapabilecek karakterlerle donanmas\u0131.<br \/>\n\u00c7i\u00e7eksiz bitkilerde = Rizoid ler ,<br \/>\nParazit bitkilerde = Haustorium-eme\u00e7ler,<br \/>\nY\u00fcksek bitkilerde = K\u00f6kler<br \/>\nBitkilerde homoloji : Bunlar\u0131n k\u00f6kenleri ayn\u0131 ancak farkl\u0131 g\u00f6revleri ger\u00e7ekle\u015ftirmek i\u00e7in metamorfozla morfoloji ,histolojik ve anatomik farkl\u0131l\u0131klar g\u00f6sterir.<br \/>\n Yaprak = Stamen = Karpeller : <\/p>\n<p>Monokotil ve Dikotil Canl\u0131lar\u0131n Kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131<br \/>\nOrgan-Yap\u0131 Monokotil Dikotil<br \/>\n K\u00f6k : Sa\u00e7ak Kaz\u0131k<br \/>\n Yaprak : Perdeli damar A\u011fs\u0131 damar<br \/>\n Tohum : Tek \u00e7enek \u00c7ift \u00e7enek<br \/>\n \u0130letim demeti : Da\u011f\u0131n\u0131k (Kapal\u0131) D\u00fczenli s\u0131ralan\u0131\u015f<br \/>\n Meristem doku : Pirimer meristem Pirimer ve sekonder meristem var<br \/>\n B\u00fcy\u00fcme : Boyca Boyca ve ence <\/p>\n<p>A-K\u00f6k<br \/>\n \u0130lk k\u00f6k sistemi e\u011freltilerde g\u00f6r\u00fcl\u00fcr. Karayosunlar\u0131ndaki rizoid ler k\u00f6k g\u00f6revi \u00fcstlenen analog yap\u0131lard\u0131r.<br \/>\nK\u00f6k\u00fcn Temel \u00d6zellikleri:<br \/>\nSu ve mineral al\u0131nmas\u0131na organize olmu\u015ftur.<br \/>\nYer \u00e7ekimine pozitif tropizma yaparlar.<br \/>\nYaprak ta\u015f\u0131mazlar.<br \/>\nKlorofil i\u00e7ermezler.<br \/>\nEpidermis i ince \u00e7eperlidir.<br \/>\nStoma ve t\u00fcy metamorfozlar\u0131 ta\u015f\u0131maz.<br \/>\nEpidermis ten emici t\u00fcyler olu\u015fur ve b\u00fcy\u00fck tek koful ta\u015f\u0131rlar.<br \/>\nD\u0131\u015f \u00e7eperde (epidermis) k\u00fctikula bulunmaz.<br \/>\nK\u00f6k Metamorfozlar\u0131<br \/>\n 1-Depo K\u00f6kler : \u015ei\u015fkin ve depo organ\u0131 \u00f6zelli\u011finde olup besin depolar.<br \/>\n \u00d6RN: Havu\u00e7ta ni\u015fasta , Pancarda \u015feker birikir.<br \/>\n 2-Tutunma K\u00f6kleri : Duvar ve di\u011fer cisimlere tutunmada rol oynarlar. Haptotropik (dokunmaya y\u00f6nelme) tepki verirler.<br \/>\n \u00d6RNuvar sarma\u015f\u0131\u011f\u0131.<br \/>\n 3-Destek K\u00f6k : Batakl\u0131k ortamlarda ya\u015fayan bitkilerde gev\u015fek zemine tutunmak i\u00e7in yanal uzanan ekstra k\u00f6klerdir.<br \/>\n 4-Diken K\u00f6k : Koruma yetene\u011fini art\u0131ran \u00f6zelliktir.<br \/>\n 5- \u00d6z\u00fcmleme K\u00f6kleri : Kloroplast ta\u015f\u0131yan bu hava k\u00f6kleri fotosentezde yaparlar.<br \/>\n \u00d6RN : Orkideler<br \/>\n 6- Havaland\u0131rma K\u00f6kleri : Yeterli oksijen i\u00e7ermeyen batakl\u0131k ve sulak ortam bitkilerinde negatif jeotropizm g\u00f6steren k\u00f6kler toprak ve su \u00fcst\u00fcne \u00e7\u0131karak O2 al\u0131n\u0131m\u0131nda rol oynarlar.<br \/>\n \u00d6RN: Mangrove , Metroxylan hurmalar\u0131nda.<br \/>\n 7-S\u00f6m\u00fcrme K\u00f6kleri : Parazit bitkilerde k\u00f6kler di\u011fer(Konuk\u00e7u) bitkinin dokular\u0131na girebilecek eme\u00e7ler haline d\u00f6n\u00fc\u015fm\u00fc\u015ft\u00fcr.<br \/>\n \u00d6RN: \u00d6kse otu<br \/>\n 8-G\u00f6vde te\u015fkil eden k\u00f6kler: K\u00f6kler yan tomurcuklar vererek yeni bitkiler olu\u015ftururlar.<br \/>\n \u00d6RN: Yaban\u0131l otlar.<br \/>\n\u00d6nemli notlar:<br \/>\nDepo k\u00f6k ve g\u00f6vde olu\u015fturan k\u00f6kler vegetatif \u00fcreme ger\u00e7ekle\u015ftirirler.<br \/>\nHavaland\u0131rma k\u00f6kleri negatif jeotropizm g\u00f6sterirler.<br \/>\nYaban\u0131l otlarla m\u00fccadelenin zorlu\u011fu g\u00f6vde te\u015fkil eden k\u00f6kler bulundurmas\u0131ndand\u0131r.<br \/>\nSu ortam\u0131nda ya\u015fayan ve b\u00fct\u00fcn y\u00fczeyi ile su alabilen bitkilerde k\u00f6k bulunmaz.<br \/>\nB-G\u00f6vde<br \/>\n \u0130lkse g\u00f6vde olu\u015fumu karayosunlar\u0131nda g\u00f6r\u00fcl\u00fcr \u0130letim demetlerine sahip g\u00f6vde e\u011freltilerde g\u00f6r\u00fcl\u00fcr. Ancak ger\u00e7ek g\u00f6vde olu\u015fumu \u00e7i\u00e7ekli bitkilerde g\u00f6r\u00fcl\u00fcr.<br \/>\nG\u00f6vdeyi k\u00f6kten ay\u0131ran \u00f6zellikler:<br \/>\nYaprak ta\u015f\u0131rlar.<br \/>\nHem u\u00e7tan hemde intekalar b\u00fcy\u00fcr.<br \/>\nLentisel , stoma , hidatot gibi madde al\u0131\u015f veri\u015finde g\u00f6rev alan yap\u0131lar ta\u015f\u0131rlar.<br \/>\nNegatif jeotropizma g\u00f6sterirler.<br \/>\nG\u00f6vde metamorfozlar\u0131:<br \/>\n 1-Depo g\u00f6vdeler: Genellikle toprak alt\u0131nda bulunurlar. Toprak \u00fcst\u00fcne yapraklar<br \/>\n toprak alt\u0131na ise k\u00f6kler olu\u015ftururlar. Organik madde depo ederler.<br \/>\n \u00d6RN: Patates<br \/>\n 2-S\u00fcl\u00fck g\u00f6vde: G\u00f6vdeden ayr\u0131lan yan dallar s\u00fcl\u00fck gibi tutunma i\u015flevini g\u00f6rmek i\u00e7in farkl\u0131la\u015fm\u0131\u015ft\u0131r. bitkinin di\u011fer cisimlere tutunup destek almas\u0131n\u0131 sa\u011flarlar.<br \/>\n \u00d6RN:Asma<br \/>\n 3-Yapraks\u0131 \u00f6z\u00fcmleme k\u00f6kleri: Kurak ortam bitkilerinde dumura u\u011frayan yapraklar\u0131n g\u00f6revini g\u00f6vde \u00fcstlenir ve \u00f6z\u00fcmleme yaparlar.<br \/>\n \u00d6RN:Ku\u015fkonmaz , Zambak<br \/>\n 4-Diken g\u00f6vde: G\u00f6vdeden \u00e7\u0131kan yan dallar diken \u015feklini alarak koruma i\u015fini \u00fcstlenir .<br \/>\n \u00d6RN: Ahududu<\/p>\n<p>C-Yaprak<br \/>\nYaprak metamorfozlar\u0131:<br \/>\n 1-Besleyici yapraklar: K\u0131sa , kal\u0131n , renksizdir. Besin depolarlar.<br \/>\n \u00d6RN:So\u011fan<br \/>\n 2-Diken yapraklar: \u00c7\u00f6l ortam\u0131nda terlemenin azalt\u0131lmas\u0131 ve korunma gibi ya\u015famsal adaptasyonlar\u0131 olan bitkilerde g\u00f6r\u00fcl\u00fcr .<br \/>\n \u00d6RN: Devedikeni<br \/>\n 3-S\u00fcl\u00fck yapraklar: Zay\u0131f g\u00f6vdeli baz\u0131 bitkilerde ba\u015fka cisimlerden destek almak amac\u0131 ile yapraklar s\u00fcl\u00fck halini alm\u0131\u015ft\u0131r.<br \/>\n \u00d6RN: Bezelye<br \/>\n 4-Su depo yapraklar\u0131: Kurak ortamlarda ya\u015fayan baz\u0131 bitkilerde yapraklar su depolamak i\u00e7in \u00f6zelle\u015fmi\u015ftir.<br \/>\n \u00d6RN: Makas otu<br \/>\n 5-Kapan (Tuzak) yapraklar: \u0130nsektivor bitkilerde yapraklar b\u00f6cek kapan\u0131 haline d\u00f6n\u00fc\u015fm\u00fc\u015ft\u00fcr. Bu sayede bitkiler azot ihtiyac\u0131n\u0131 yakalad\u0131klar\u0131 b\u00f6cekleri sindirerek kar\u015f\u0131larlar.<br \/>\n \u00d6RN: Drosera, Nephentes, Dionea<br \/>\nHidatotlar<br \/>\nSu ve batakl\u0131k bitkilerinin yapraklar\u0131nda bulunur.<br \/>\n\u0130ki kilit h\u00fccresi bulunur ancak a\u00e7\u0131kl\u0131k h\u00fccreler taraf\u0131ndan kontrol edilemez.<br \/>\nOdun borular\u0131 ile ba\u011flant\u0131l\u0131d\u0131rlar.<br \/>\nFazla suyun s\u0131v\u0131 halde d\u0131\u015fa at\u0131l\u0131m\u0131n\u0131 sa\u011flarlar.<br \/>\nBitkilerde bo\u015falt\u0131ma yard\u0131mc\u0131 yap\u0131lard\u0131r.<br \/>\nKutik\u00fcla<br \/>\nEpidermisin salg\u0131s\u0131 olarak meydana gelir.<br \/>\nKal\u0131nl\u0131\u011f\u0131 bitkinin su kay\u0131b\u0131na tolerans\u0131na ba\u011fl\u0131 olarak de\u011fi\u015fir.(Sulak ortam bitkilerinde incedir.)<br \/>\nCanl\u0131 ve nazik olan alt dokulardaki h\u00fccreleri fiziksel , kimyasal , biyolojik olumsuzluklara kar\u015f\u0131 korur.<br \/>\nSu kay\u0131b\u0131n\u0131 \u00f6nleyici g\u00f6rev \u00fcstlenir.(Azda olsa transpirasyonla su kayb\u0131 vard\u0131r .)<br \/>\nStoma h\u00fccrelerinde bulunmaz.<\/p>\n<p>Bitkilerde \u00f6nemli ya\u015famsal olaylar<br \/>\n Bitkilerde ta\u015f\u0131ma<br \/>\nA-Su ve karayosunlar\u0131nda ta\u015f\u0131ma:<br \/>\n 1-Madde al\u0131\u015f veri\u015fi t\u00fcm y\u00fczeyle yap\u0131l\u0131r<br \/>\n 2-\u00d6zelle\u015fmi\u015f ta\u015f\u0131ma sistemleri bulunmaz<br \/>\n 3-Su ve nemli ortamlarda ya\u015farlar<br \/>\n 4-V\u00fccud olduk\u00e7a k\u00fc\u00e7\u00fckt\u00fcr<br \/>\nB-E\u011freltiler ve tohumlu (\u00c7i\u00e7ekli) bitkiler<br \/>\n 1-Karasal ya\u015fama uyum sa\u011flam\u0131\u015flard\u0131r<br \/>\n 2-Madde al\u0131\u015f veri\u015fi belirli v\u00fccud b\u00f6lgeleri ile yap\u0131l\u0131r<br \/>\n 3-\u00d6zelle\u015fmi\u015f ta\u015f\u0131ma sistemleri bulunur<br \/>\n 4-V\u00fccud olduk\u00e7a b\u00fcy\u00fckt\u00fcr<br \/>\nBitkilerde madde ta\u015f\u0131n\u0131m\u0131nda rol alan fakt\u00f6rler<br \/>\n 1- Soymuk borular\u0131nda Hormonlar\u0131n, besin ve azotlu bile\u015fiklerin ta\u015f\u0131nmas\u0131,Gazlar\u0131n ta\u015f\u0131nmas\u0131,suyun yanal ta\u015f\u0131nmas\u0131: Dif\u00fczyon, Aktif ta\u015f\u0131ma (Yava\u015f ger\u00e7ekle\u015fir)<br \/>\n 2-Odun borular\u0131nda su ve suda erimi\u015f maddelerin ta\u015f\u0131nmas\u0131:K\u00f6k bas\u0131nc\u0131, Terleme,K\u0131lcall\u0131k, Kohezyon ve Aldezyon g\u00fcc\u00fc (H\u0131zl\u0131 ger\u00e7ekle\u015fir)<br \/>\nBitkilerde destek hareket yap\u0131lar\u0131:<br \/>\n 1-H\u00fccre \u00e7eperi ve turgor: Otsu bitkilerde ve a\u011fa\u00e7s\u0131 bitkilerin gen\u00e7 yap\u0131lar\u0131nda deste\u011fi olu\u015fturan temel yap\u0131d\u0131r.<br \/>\n 2-Destek dokusu: A\u011fa\u00e7s\u0131 bitkilerde destek \u00f6devi i\u00e7in farkl\u0131la\u015fm\u0131\u015f \u00f6zel h\u00fccrelerden olu\u015fmu\u015f dokudur.(Kollenkima ve sklerankima)<br \/>\n 3-\u0130\u015fletim demetleri ve \u00e7eper kal\u0131nla\u015fmas\u0131 g\u00f6steren dokular:Bu dokulara ait h\u00fccreler sahip olduklar\u0131 kal\u0131n \u00e7eperlerle esas g\u00f6revlerinin yan\u0131s\u0131ra bitkilerde destek \u00f6devide g\u00f6r\u00fcrler.<br \/>\n Bitkilerde davran\u0131\u015f<br \/>\n \u00c7imlenme,\u00e7i\u00e7ek a\u00e7ma,yaprak d\u00f6kme,tropizma ve nasti bitkilerde g\u00f6r\u00fclen \u00f6nemli davran\u0131\u015flard\u0131r. Uyaran i\u015f\u0131k,\u0131s\u0131,su,kimyasallar ve travmalar olabilir.Tepkilerin verilmesinde hormonlar d\u00fczenleyicidir. Tepki ise mitoz,turgor de\u011fi\u015fimi veya asimetrik b\u00fcy\u00fcme ile ger\u00e7ekle\u015f<br \/>\n 1-Pasif hareket: Belli bir hareket organeli ve yap\u0131s\u0131 olmayan tek h\u00fccreli canl\u0131larda hareket su,hava ak\u0131m\u0131 ve di\u011fer organizmalar sa\u011flar.Canl\u0131 harekette enerji harcamad\u0131\u011f\u0131 i\u00e7in pasif hareket olarak adland\u0131r\u0131l\u0131r.Hareketin y\u00f6n\u00fc ve s\u00fcresi canl\u0131 taraf\u0131ndan kontrol edilemez.<br \/>\n 2-Aktif hareket: Canl\u0131n\u0131n hareket organelleri ile ger\u00e7ekle\u015fen ve canl\u0131n\u0131n enerji harcamas\u0131na neden olan harekettir.Taksi (G\u00f6\u00e7\u00fcm) hareketi olarak adland\u0131r\u0131l\u0131r.Hareket belli bir uyarana ba\u011fl\u0131 olarak ger\u00e7ekle\u015fir. Adland\u0131r\u0131lmas\u0131 uyarana g\u00f6re yap\u0131l\u0131r.Uyarana do\u011fru yap\u0131lan taksi hareketine pozitif taksi, uyarandan uzakla\u015fma \u015feklinde yap\u0131lan harekete negatif taksi hareketi denir.<br \/>\n Yap\u0131lan \u00e7al\u0131\u015fmalar bitkilerinde belli bir alanda \u00fcrettikleri \u00f6zel salg\u0131larla birbirlerinin metabolizmalar\u0131n\u0131 kontrol ettikleri g\u00f6r\u00fclm\u00fc\u015ft\u00fcr.Ayr\u0131ca etilenin etkisinide unutmamak gerekir.<\/p>\n<p> Bitkilerde konum ve yer de\u011fi\u015ftirme hareketleri g\u00f6r\u00fclmez.Bitkilerde g\u00f6zlenen hareket bi\u00e7imleri nasti ve tropizmad\u0131r.<br \/>\n 1-Nasti(\u0130rkilme)<br \/>\n Uyaran\u0131n y\u00f6n\u00fcne ba\u011fl\u0131 olmaks\u0131z\u0131n ger\u00e7ekle\u015fen tepki tarz\u0131ndaki hareketlerdir.Uyarana g\u00f6re dland\u0131r\u0131l\u0131r.<br \/>\n Not:Nasti olay\u0131nda temel etken turgor olay\u0131d\u0131r.<br \/>\n*Fotonasti&#8230;&#8230;.(Uyaran:\u0131\u015f\u0131k):Papatya \u00e7i\u00e7eklerinde<br \/>\n*Termonasti&#8230;.(Uyaran:Is\u0131):\u00c7i\u011fdemin yaprak hareketlerinde<br \/>\n*Sismonasti&#8230;.(Uyaran:Sars\u0131nt\u0131,De\u011fme):K\u00fcst\u00fcm otunda<br \/>\n*Tigmonasti&#8230;.(Uyaranokunma):B\u00f6cek kapan bitkilerde<br \/>\n 2-Tropizma(Uyar\u0131lma)<br \/>\n Asimetrik b\u00fcy\u00fcmeler sonucu geli\u015fir.Hormonlar\u0131n da\u011f\u0131l\u0131m\u0131nda g\u00f6r\u00fclen asimetri sonucu, dengesiz turgor ve h\u00fccre b\u00f6l\u00fcnmeleri ile ger\u00e7ekle\u015fir. Bu durum bitkinin farkl\u0131 k\u0131s\u0131mlar\u0131n\u0131n hormonlara farkl\u0131 cevap vermesinden kaynaklan\u0131r. Tropizma bitkinin \u00e7evresel ko\u015fullardan en \u00fcst d\u00fczeyde yararlanmas\u0131n\u0131 sa\u011flayan durum ayarlama davran\u0131\u015f\u0131d\u0131r.Uyaran\u0131n y\u00f6n\u00fcne ba\u011fl\u0131 olarak ger\u00e7ekle\u015fen y\u00f6nelim \u015feklindeki harekettir.Uyarana g\u00f6re adland\u0131r\u0131l\u0131r.Uyarana do\u011fru ger\u00e7ekle\u015fen y\u00f6nelime pozitif tropizma, uyarandan uzakla\u015fma \u015feklinde ger\u00e7ekle\u015fen y\u00f6nelime negatif tropizma denir.<br \/>\n Not:Tropizma olay\u0131nda temel etken hormonlard\u0131r<br \/>\nFototropizma (Uyaran: \u0131\u015f\u0131k) G\u00f6vde pozitif tepki k\u00f6k ise negatif tepki verir.<br \/>\nJeotropizma (Uyaran:Yer\u00e7ekimi) G\u00f6vde negatif k\u00f6k ise pozitif tepki verir.Batakl\u0131k ve sulak ortam bitkilerinin baz\u0131 k\u00f6kleri negatif jeotropizma g\u00f6sterir. Bu tip k\u00f6kler havaland\u0131rma k\u00f6kleri olarak adland\u0131r\u0131l\u0131r ve batakl\u0131k topra\u011f\u0131nda O2 nin az olmas\u0131ndan dolay\u0131 k\u00f6klerin gaz al\u0131\u015f veri\u015finde rol al\u0131rlar.<br \/>\nHidrotropizma (Uyaran :Su) K\u00f6kler pozitif hidrotropizma g\u00f6stererek suyun fazla oldu\u011fu ortamlara do\u011fru y\u00f6nelirler.<br \/>\nKemotropizma (Uyaran:Kimyasallar=asitler,bazlar,g\u00fcbre) K\u00f6kler kimyasallara kar\u015f\u0131 pozitif (G\u00fcbre) veya negatif (Asit) tropizma g\u00f6sterirler.<br \/>\nTravmatropizma (Uyaran:Yaralanma) K\u00f6kler yaralanmaya neden olan fakt\u00f6rlere kar\u015f\u0131 negatif tropizma g\u00f6sterir.<br \/>\nHaptotropizma (Uyaran:Temas) Sarma\u015f\u0131k ve fasulyenin s\u00fcl\u00fck g\u00f6vdelerinde de\u011fmeye kar\u015f\u0131 pozitif tropizma g\u00f6sterir.<br \/>\nBitkilerde hormon \u00fcretilen yap\u0131lar:<br \/>\nK\u00f6k ve g\u00f6vde ucu<br \/>\nYapraklar<br \/>\nTohum<br \/>\nDepo g\u00f6vde ve k\u00f6klerde<br \/>\nTomurcuk<br \/>\nDikotiledon\u2019larda yara b\u00f6lgesi<br \/>\nMeyve<br \/>\n Bitkilerde ta\u015f\u0131ma sistemi olmad\u0131\u011f\u0131 i\u00e7in hormonlar\u0131n ta\u015f\u0131nmas\u0131 dif\u00fczyonla olur. Hedef yap\u0131lar, hormon \u00fcreten yap\u0131lara \u00e7ok yak\u0131nd\u0131rlar. Bitkisel hormonlar; bitkilerde h\u00fccre b\u00f6l\u00fcnmesi, h\u00fccre b\u00fcy\u00fcmesi , \u00e7imlenmenin uyar\u0131lmas\u0131 veya engellenmesi, g\u00f6vde \u2013 meyva- yaprak- k\u00f6k b\u00fcy\u00fcmesi, meyva olgunla\u015fmas\u0131, yaprak d\u00f6k\u00fclmesi, Yaralar\u0131n kapanmas\u0131, tropizma gibi \u00f6nemli ya\u015famsal olaylar\u0131n ger\u00e7ekle\u015fmesinde rol oynayan organik maddelerdir.<br \/>\nBitkisel hormonlar\u0131 bitkilerde ge\u00e7ekle\u015ftirdikleri etkiye g\u00f6re iki grupta incelenebilir.<br \/>\n 1-Geli\u015fimi uyaran hormonlar: Oksin \u2013 Sitokinin \u2013 Giberillin<br \/>\n 2-Geli\u015fime ket vuran hormonlar: Absisik asit \u2013 Etilen \u2013 \u00c7ok miktardaki oksin<br \/>\n1-Oksin: G\u00f6vde ve k\u00f6k u\u00e7lar\u0131nda , yapraklarda meristematik h\u00fccrelere taraf\u0131ndan olu\u015fturulur.<br \/>\nB\u00fcy\u00fcme b\u00f6lgesindeki h\u00fccrelerin b\u00fcy\u00fcmesini sa\u011flar.<br \/>\nBaz\u0131 dokularda h\u00fccre b\u00f6l\u00fcnmesini uyar\u0131r.<br \/>\nYeni k\u00f6klerin olu\u015fumunda rol oynar.<br \/>\nH\u00fccre , doku farkl\u0131la\u015fmas\u0131 sa\u011flar.<br \/>\nG\u00f6vde, k\u00f6k, yaprak ve meyve b\u00fcy\u00fcmesini sa\u011flar.<br \/>\nFototropizmaya neden olur.<br \/>\nOvaryum geli\u015fimini uyar\u0131r ve tohumsuz meyve olu\u015fumunu sa\u011flar.<br \/>\n\u0130lkbaharda kambium faaliyetini ba\u015flat\u0131r.<br \/>\nD\u00f6llenen \u00e7i\u00e7e\u011fin ve yapraklar\u0131n d\u00f6k\u00fclmesini \u00f6nler<br \/>\nAz salg\u0131land\u0131\u011f\u0131nda yapraklar d\u00f6k\u00fcl\u00fcr.<br \/>\n\u00c7ok salg\u0131land\u0131\u011f\u0131nda b\u00fcy\u00fcme ve geli\u015fmeye ket vurur.<br \/>\nStomalar\u0131n a\u00e7\u0131l\u0131p kapanmas\u0131na etki eder.<\/p>\n<p>2-Giberillinler<br \/>\nG\u00f6vdenin h\u0131zl\u0131 ve anormal uzamas\u0131n\u0131 sa\u011flar.<br \/>\nTohum \u00e7imlenmesini uyar\u0131r.<br \/>\n\u00c7i\u00e7eklenmeyi ve erken \u00e7i\u00e7ek a\u00e7may\u0131 uyar\u0131r.<br \/>\nMeyve b\u00fcy\u00fcmesini sa\u011flar.<br \/>\nTohumda depo ni\u015fastan\u0131n kullan\u0131labilir glikoza d\u00f6n\u00fc\u015f\u00fcm\u00fcn\u00fc uyar\u0131r.<br \/>\n 3-Sitokininler :<br \/>\nAna kayna\u011f\u0131 k\u00f6klerdir.<br \/>\nH\u00fccre b\u00f6l\u00fcnmesini uyar\u0131r.<br \/>\nBitkide b\u00fcy\u00fcmeyi sa\u011flar.<br \/>\nProtoplastlar\u0131n kloroplastlar haline gelmesini sa\u011flar.<br \/>\nYaprak d\u00f6k\u00fclmesini engeller.<br \/>\nTomurcuklardan filiz ve yaprak olu\u015fumunu uyar\u0131r.<br \/>\n4-Absisik asit<br \/>\nTomurcuk ve tohumlarda uyku halinin ba\u015flamas\u0131.<br \/>\nH\u00fccre b\u00f6l\u00fcnmesinin azalt\u0131lmas\u0131.<br \/>\nSu kay\u0131b\u0131nda stomalar\u0131n kapanmas\u0131.<br \/>\nYe\u015fil yapraklar\u0131n yerini koruyucu pullar\u0131n almas\u0131.<br \/>\n5-Etilen<br \/>\nMeyve olgunla\u015fmas\u0131n\u0131 uyar\u0131r.<br \/>\nYaprak d\u00f6k\u00fclmesini uyar\u0131r.<br \/>\nTek \u00e7enekli<br \/>\n \u00c7ift \u00e7enekli<br \/>\n Ta\u00e7 yaprak (\u00e7i\u00e7ek)<br \/>\n 3&#8217;s<br \/>\n 4 ve 5&#8217;s<br \/>\n yaprakta damar d\u00fczeni<br \/>\n Paralel<br \/>\n A\u011fs\u0131<br \/>\n \u0130ltim demetleri<br \/>\n Da\u011f\u0131n\u0131k<br \/>\n D\u00fczenli s\u0131ralan\u0131\u015f<br \/>\n G\u00f6vde yap\u0131s\u0131<br \/>\n Otsu<br \/>\n Otsu + A\u011fa\u00e7s\u0131<br \/>\n K\u00f6k<br \/>\n Sa\u00e7ak<br \/>\n Kaz\u0131k<br \/>\n B\u00fcy\u00fcme<br \/>\n Boyca<br \/>\n Boyca ve Ence<br \/>\n \u00d6rnekler:<br \/>\n \u00c7im, M\u0131s\u0131r, Orkide<br \/>\n Elma, G\u00fcl, Ay\u00e7i\u00e7e\u011fi <\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u0130TK\u0130LER Bitkilerde Adaptasyonlar Bitkilerde \u00e7evreye uyum;Bitkilerdeki dokular bitkilere g\u00f6re bir tak\u0131m farkl\u0131l\u0131klar g\u00f6sterir. Bitkilerin ya\u015fam ortam\u0131ndaki \u00e7evresel ko\u015fullar geli\u015fmi\u015fli\u011fi ait oldu\u011fu dokularda farkl\u0131la\u015fmalar\u0131n olu\u015fmas\u0131na neden olur. \u00d6RNEK: Kurak b\u00f6lge bitkisinde G\u00f6vde k\u0131sa ve kal\u0131n. K\u00f6k \u00e7ok geli\u015fmi\u015f. Yaprak kal\u0131n ve k\u00fc\u00e7\u00fck y\u00fczeyli. G\u00f6zenek (stoma) az ve derinde. Yaprak y\u00fczeyi terlemeyi \u00f6nleyen fazla \u0131\u015f\u0131\u011f\u0131 engelleyen t\u00fcylerle &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1407,1403],"tags":[7772,7773,7779,7780,7771,7781,7776,5880,2563,7777,7778,7775,5918,7774,5884],"class_list":["post-3369","post","type-post","status-publish","format-standard","hentry","category-fen-ve-teknoloji-odevleri","category-odevler","tag-bitkilerde-adaptasyonlar","tag-bitkilerde-analoji","tag-bitkilerde-onemli-yasamsal-olaylar","tag-bitkilerde-tasima","tag-bitkilerin-genel-ozellikleri","tag-destek-dokusu","tag-dikotil","tag-epidermis","tag-klorofil","tag-kokun-temel-ozellikleri","tag-kutikula","tag-monokotil","tag-nasti","tag-rizoid","tag-stoma"],"_links":{"self":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/3369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/comments?post=3369"}],"version-history":[{"count":0,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/posts\/3369\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/media?parent=3369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/categories?post=3369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.islamidavet.com\/kutuphane\/wp-json\/wp\/v2\/tags?post=3369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}