Sexual Reproduction in Flowering Plant

SEXUAL REPRODUCTION IN FLOWERING PRANT INTRODUCTION A Plant Show Sexual (Angios Puum) Rep. flower cure Object of Aesthetic, Ornamental, Social Religious Cultural Valve floriculture - Cultivation, breeding marketing of flower. Much before actual flowers seen on Plant decision thed Plant is Jong to flower has Jaken Place. Several hormonal Structural Che Changes Differentiate develop the Inficrescune floral Primodiom. bear- Peoral bud & then fluwen. PRE-FERTILISATION STR. EVENT •STAMEN, MICROSPORANGIUM & (P.G Androcziun STAMEN Male reproductive wharl Micros Armophyll. Filament ANTHER •Long, Slender Stallk Proximal end attack, to thalamus ar (Petal. nayane Vaumable indiff. Jenga. Species. Terminal germanily bilobed. Each Jobe has-2 theca Jongitudinal gruave Oun Jengthwise Separating the theca Terrayonal, Microsparungiy Jotale at Corney Tula Two in in each e lobe) develop Connective Center V. Tissue] STRUCTURE OF MICROSPORANG Connective Epidermis Endothecium Middle Jayor lapetum Sporogeneous Sporogeneous issue dev G Compactly awr. (Homagencous Cell • Derse Cytoplasm Mon than One Nucleus Centre Pleach m. Protechim help in def Innewmust wall Malvaceat family Monethecous bis proangiate become Pollen Sac MICROSPORO CHENESIS Press & form of microstre forme (Pre] by meiosis. Epidermis Melustematic Fissue Teread ↳ (Tetrahedral) Isobilateral Sen Vascular Tissue Strand. Terragonal Str dicer Monocot Arches porsial Cell Prim. Pawetal by Periclinal div. Sporogeneous (milosis) issue Form 8-5 Layer 1-Endothe 1-3-Topikim 1-ML microspore Terrad 40 College Each Ceu Micros Por & Serogeneus Jissue is a Porential Porien osmmc The microspore As Anther Mature Cure formed aur anged as Clehydrate 28 develop into P. Cluster of four Ceu-Jetred microspore dissociated from each other Calle POLLEN CURAIN - Cuencaly Shantal (25-50mm) • Represent first male gametophyte... • Vasety of auchitecture Size, Shape, Colous, design Seen of on P. from diff Species. • Prominent Jwalayet Exiness intine Exine Outer hard Spara Pollenin Gueum Pore whave (SO) Inline Innerst wow Jayer, thin, Continuous, 2-Cessed Stage Pectin & Cellulose Polien K4 Lipid in Entomo Drily flower. Secrete by tapetum Protect - - UV Varelalive Cell Heum Pure Tricalfade mane Bigger, Abundant fad reserve & Lange irregular Share N Small , float On Cyteplasm of vic, Spindleshape with dense Cytoplasm & No Manat • 60% of angiosperm - P.Cu Sned (2-Celled Stage) One melosis One mitosisis • 40% of angiosperm - Ceren. Ceu mitusis oo 00 (2mon- (2 non-motile male gamete) ↓ (before R Sheed) Aero Hero allergens - Pauthenium /Caumat ↓ grass (3-(eled Stage) = I meiosit 2 mitosis Ambrosia - Hay fever (Imported + wheat) Pollen Tablet/Syrup • rich in Nutrient Pollen viability - Highly variable depend - Temp, humidity. Rice & Wheat-30min ↑Performance of horse & Athelete. Food Supplement. Rosaceae, Legoming Seae & Solanaceae Month Pollen bank (+) Matuse anthe -196°C - Lig. N Ccrop breeding (Prag.) 2. Pollen Sac fuse 2 www layer. Endothecium, Epid. PISTIL, MEGASPORAN GIUM (OVULE) & EMBRYO SAC sayang ngupondy CHYNDECIUM Female Reproductive Paut landing Sigma Men Manotoupellamy (Stagle Picn (more than one Pisti) Style Eungaledy Slender below Stigma Thatb Basal bulged Pout Contain Oruvan City Megasporangia Covule), Culse tram (Placenta) Apocampous - RM-L Syncampous Popower, Hibiscus' One ovure in ovary - BeWheat, Paddy, mango Many ovule in ovary - Pasaya, watermelten, Orchid. Ponen glass Slide with 10% Sugar Sith Por on glass On Some flaver. egi (Pea, Chick Pea, Corotolanda, balsam & Vinca -Seed Coat 10 Micropylar Hilum Poe Funicle Chalazat palट Chalaza Embryo sac Raphae (ingymno Cblack peppe bect Castor) v. tissue Placenta Guide A Tore towond Abbysales Hitum Mulicarell. Region Whewe funicle. body hus fuse upitn funikle: Stalkay ovule Nucellus- Mass of Cel- Chalaza Represent basal Pout of Ovule, [ANATROPUS OVULE] Poren Pishi Th MEGA SPORO GENESIS • Puccess of fermation of megar Pore from Mime Ovure gensstaly diffh : mmc in micropylon Sregion of Nucellus. Single Archisitsial Cell Nucell us 1° Pouletal formnucellus formnucellug 1º Saurogeneous. mal mmc meiosis megasto Idegenerate Chaazu FEMALE GUAME TOPHYTE EMBRYO SAC One megastore furch Other 3 degenerate. megastore develop into the female Jumatophyte (only functn) Mitos 2-mitosis Cybrinesis AntiDodal Functional megaspore Free Nuclear div. Central Сель рым Synergid Monospornic dev. Embryo Buc formation From Single megaspore Mature E-S Micropyle App. ↓ Cewed 8-Nuckatej Guide Pitts Paygonum AyDe Synestgid. POLLINATION Auragamy Bisexual, (monodiny (Pant) Transfeu Freim Some flower • In Chasmogamous frowel require Synchrony & Pollen release and Stigma receptivity, Ass should be lie cose Oxalis, Commelina, Yiola, (Produce (Java lyre flower) Chasmogam. For Cross Pollination Cleisto. do not Open -In vourably aute Produce assure Sard Sect. (aksen tea Pollinies. HEITONO CHAMY Monoecious Plant Xenogamy Dioecions (Plant As a diffu Picart through Dolinator Transfer Polwn anther to Stigma anatthen flower Samt Plant. Functionally-Cross Grenetically-Fifth Prevent both austogam Cueltonogamy. Cuenitically - Sey Similar to autojamy Since P. Come from Same Plant. Papaya, date Paim Coron Same Plant but flower - Unisex. Cucurbita, youmers Castor, maize ABIOTIC Chance factor (may be in Contact Plus Shigma) Lin both walew & wind) Flower Produce enormous ant of P.GG Compared to no. of Ovule avilable for Porination. ACHENTS OF POLINATION Bien/Nectar Robber-win WIND-(Mose Common) Anemophiy • Light, Non-Sticky - Fransported with Watas Cossent. Well expose Stamen (Junge) ( Quite Tate) - WATER-PICH One Preetected Limited Hydrophily by multigineus Covering.) 8 • Limired in Sogeneva in (mesty monocot) mode of transport for Male gam in Jowet Plant ma Feathery Stigma (Jus ir barn) Single owle in in each ovary & Numerous flower (Packedin impor Inflorescence. Tassels (Corn) (Stigma) wave in wind to teas Poken • Common in grass. Bomboy Coconut, maize, Grass, (Pinus-winged (Pollen Yesow Cloud/ Solohor Shower • Algar Bryophyte •Prewdophyte. Some bryo, Prevido destrib. Jimited because it depend on Water for Resination trang por male gametes Peuflisation. 1) Hydrilla - fresh. fresh waters Manine H₂O Zestewa (maire gruts) Mejority & aquatic Plant- Epitydrophing - Vallis Waten dily Water Hyacinth My Pohydrophilly-Zostera tryctsina xibbon live Pominating Agent Tonyume reward Poninakan. Sur bisely Hui Insect Entomophily Bird Ornitho Ant Myre Bat Chisop. Pominant factor-80% by honey bre. Cocumber tobacco Sun Flower Apple Eucalyptus BIOTIK Majority of Plant use: Snake Ophio Snail Malaco •Some Primate (Jemur), artoreal (fore clweting), even Reptile (Cuecko Jizard & Cuanden Jizard) aise Polvinatorin Some Species. rodent. ( Lange, Colors fun, fragrance, Attractive, Nectaw, Stick • Small flower Clustered into inflorescence to Make Conspicious. Animals attract by to Colovsfrinees / Ragnance. Flowce (Polinated by- fries & beetle - Secride foul odous to attrack. • To Sustain animal visit flower Provide reward Some fuwen UNEH ove Specifically adapted fors (Panticular Species animals (fimul rewand-Nector/Pollen 1) Turn Pice mech. Balvin (Protandovey (onds) 2) Trap doorsmach - (Peepal, baryan, fig (bestoptand Provide in Safe Blace to lay egg D 3) Poral Deweyed enenge levaojinio Polinate by insed wind → Complet Life Cycle each other (6 feet) In Jurn Pollinate by moth from (29) deposit ovany Moth & Yucca Lorvat Come Out Seed Start dov. POLEN-PISTIL INTERACTION (Posien deposition Jo- (P.T enter to ovule) All The ability & PISAl Jo recognist the Polen followed its acceptance ove rejechon - result y Continuous dialogue (blw (Pollen (Pi) If Compatible (Palien ← than Promote Post Pewritisation event. Ty Lorsong type (Pollen Pistil reject Pollen by- (Prevent Pollen geumination On Stigma (Pollen tube in Dialogue mediate by Chemical Component Polven interuacting with Distil. the Style Pollen tube Cuise (fum (Greum (Pore) → Content of Pellen moive Fellentube 2-Celled Stage Sheded Pollen → Cu.C divide form 2- male gamete Bceved- Camry 2 male gamete from begining. (during Stigma. (P.T reach in overly ovule enten Emicsopyle) Synengid (though Cuvide enty of Pollen. -frifern Ave) ARTIFICIAL HYBRIDISATION Knowledge gained in polen pistil intelligence Can help Plant breeders even in Compatible Pollen Continue Self-Pollination to get desired hybrids. 8 Interesting depression. DOUBLE FERTILISATION Delease 2-male gamete Cytoplasm Y Bynengid. Egg Zygo(2) (Syngamy)- Ruse 2 male gamete →Polau nuclei (PEN (Triple fusion) (3) double fivet. PEC Endosperm POST FERTILISATIONE. Double Fort; Endosperm, Emerxyo dev.. ENDOS PERM Maturation 인 Ovule, Precedes embryo dev. (PEC divede Triploid endesresum Jissue) Endosperm filled with reserve food material. use in dev. embryус Free N-f END type Endosperm Nuclear dirtyre Free nuck Gytaxin. Cellular Endo. * Coconut Water- free nuclear Endosperm. Keunel Part- Cellular Endosperm. Cellular Endo PEN Kouyo follow by Cyto Cellular Helobial Monecat Tarewmediate type PEN Cellula EMBRYO Embryo dev. Micropylar end whewe zygote is situated. Zygote Sraut divide Only Ceutam Endosperm form. (This is an adaptation Nutr.) to assure Provide Nutr. Embryogeny Cauly Stage gimilar in both monocots dicot. to Embryo In dicot Zygote Poembrgy Calabulary Heart Share Mature Dicot Embryo Embryonal Caxis, Diumule or Stem tip; typolcryl Jwo Coryledon, Epicoryl lower end in gadicle or root tip with embryo Jerminate wi Monocot Embryo One Coyledon - In gruas family Called as Scutellum. Jakoval Sicle ay (Radicle (Root Cos enclose With Undiffe Sheath Colleartiza Embryonal axis. Epicory/ - Shoot apex ss for teatestat begy enclase with falim fortant Primostidia - Colleopfile.