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PlantPlantPlantcellcell cell http://www.instructables.com/image/FUEVRFCFFFIVL5P/Creating-the-Cell-Cross-Section.jpg ProkaryoticProkaryotic cellcell • สารพันธุกรรมกระจายอยูในโปรโตพลาส • ไมมีเยอหื่ มนุ วเคลิ ียส • ไมมี organelle ทําหนาท ี่เฉพาะ ตย. Bacteria, bluegreen algae (cyanobacteria) http:www:ap-bio-patrick-steed.wikispaces.com EukaryoticEukaryotic cellcell • สารพันธุกรรมอยูบน chromosome ซึ่งอยู ภายในนิวเคลียส • มีเยื่อหุมนิวเคลียสชัดเจน • organelle ทาหนํ าที่เฉพาะ - มีเยื่อหุม ตย. Alage Tracheophyta ขนาดของเซลลพืช 10 - 100 mm Acetabularia 2-5 cm www.seavegetables.com/.../Acetabularia.htm เซลลของพืชบางชนิด fiber cell อาจยาวถึง 20 cm รูปรางของเซลลพืช http://media-2.web.britannica.com/eb-media/01/5601-004-09DE6B42.gif โครงสรางของเซลลพืช 1 ผนังเซลล (cell wall) 2 โปรโตพลาส (protoplast) 2.1 เยื่อหุมเซลล (cell membrane) 2.2 ไซโตพลาสซึม (cytoplasm) - ออรแกเนล (organells) - inclusion or ergastic substance 2.3 นิวเคลียส (nucleus) ผนังเซลล cell 1 (cell wall) 2. primary wall 3. secondary wall 1. middle lamella cell 2 1. middle lamella :- Ca, Mg- pectate แอบเปล, ฝรั่งสุก มี pectin มาก 2. primary wall องคประกอบ :- cellulose , hemicellulose, pectinpectin พบในเซลล :- parenchyma, meristematic cell 3. secondary wall องคประกอบ :- cellulose , hemicellulose, lignin,lignin, suberinsuberin พบในเซลล :- fiber, vessel, tracheid, sclerenchyma ผนังเซลล (cell wall) kentsimmons.uwinnipeg.ca/cm1504/cellwall.htm cell wall kentsimmons.uwinnipeg.ca/cm1504/cellwall.htm pits simple pit bordered pit half - bordered pit plasmodesmata www.phschool.com/.../biocoach/plants/walls.html primary หรือ secondary wall ? parenchyma sclerenchyma vessel Xylem fiber โครงสรางของเซลลพืช 1 ผนังเซลล (cell wall) 2 โปรโตพลาส (protoplast) 2.1 เยื่อหุมเซลล (cell membrane) 2.2 ไซโตพลาสซึม (cytoplasm) - ออรแกเนล (organells) - inclusion or ergastic substance 2.3 นิวเคลียส (nucleus) โปรโตพลาสโปรโตพลาส 2.1 เยื่อหุมเซลล (cell membrane) protein phospholipid หนาที่ : แบงขอบเขตภายใน/ภายนอกเซลล ควบคุมการผานเขาออกของสาร differentially permeable membrane • passive transport • active transport 2.2 ไซโตพลาสซึม (cytoplasm) - ออรกาเนล (organells) endoplasmic recticulum ribosome mitochondria golgi apparatus (dictyosome) microtubules vacuoles plastids 2.3 นิวเคลียส (nucleus) 8 7 1 2 6 3 4 5 8 plastids 1) พลาสติดที่มีสี (pigmented plastids) •คลอโรพลาส (chloroplast) •โครโมพลาส (chromoplast) 2) พลาสติดที่ไมมีสี (nonpigmented plastids) elaioplast aleuroneplast amyloplast •คลอโรพลาส (chloroplast) chlorophyll a stroma dark reaction or chlorophyll b biochemical reactions grana light reaction or photochemical reactions Grana= stacks of thylakoids thylakoid • โครโมพลาส (chromoplast) carotine : สม แสด และสแดงี xanthophyll : เหลือง น้ําตาล 2. ไซโตพลาส (cytoplasm) - inclusion or ergastic substance • สารประกอบทอยี่ ภายในไซโตพลาสซู ึม • เปนผลมาจากกระบวนการเมแทบอลิซึมที่ เกิดขึ้นภายในเซลล • มีทั้งที่เปนของแข็งและของเหลว เม็ดแปง (starch grains) ผลึก (crystals) โปรตีน (proteins) ไขมัน (lipids) แทนนิน (tannins) กรด (acids) อัลคาลอยด (alkaloids) เม็ดแปง (starch grains) ผลึก (crystals) Ca+oxalic acid calcium oxalate : calcium carbonate, calcium sulphate crystals โครงสรางของเซลลพืช 1 ผนังเซลล (cell wall) 2 โปรโตพลาส (protoplast) 2.1 เยื่อหุมเซลล (cell membrane) 2.2 ไซโตพลาสซึม (cytoplasm) - ออรแกเนล (organells) - inclusion or ergastic substance 2.3 นิวเคลียส (nucleus) 2.3 นิวเคลียส (nucleus) • nuclear membrane • nucleolus compose of RNA • chromosome การแบงเซลล (cell division) mitosis diploid, 2n meiosis haploid, n cell cycle M A P T 1. interphase G2 G1 G1 phase S phase S G2 phase G=gap, s=synthesis mitosis 1. prophase 2. metaphase karyokinesis 3. anaphase cytokinesis 4. telophase cytokinesis Microtubules preprophase band spindle phragmoplast cell plate เสนสายยาวและหดรวมกันเพื่อกําหนดตําแหนงและทิศทางการ แบงเซลล และการสราง cell plate interphase G2 preprophase band spindle microtubule metaphase spindle anaphase phragmoplast .
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    www.ijcrt.org © 2021 IJCRT | Volume 9, Issue 4 April 2021 | ISSN: 2320-2882 Histochemical Investigation of Syzygium cumini L (Skeels) S.S.Tambe Department of Botany, MGV’S Arts, Science and Commerce College Manmad, Nashik Abstract: The present work is under taken with a view to analyze, similarities and dissimilarities, anatomical, microscopically, physicochemical. These plants are commonly available and medicinally useful in this geographical area and this study would form a foundation for understanding the pharmacological and therapeutically effectiveness of these varieties. One of such resources is traditional medicines. Systematic screening of them may result in the discovery of Secondary metabolic compounds location and quantity in plant organs. This Research Article Histochemical investigation of Syzygium cumini these plants have many traditional medicinal used. KEY WORDS: Histochemistry, traditional Medicine, Secondary metabolites, Syzygium cumini L (Skeels) Introduction Several published reports demonstrate the use of histochemistry to locate essential oil, such as the localization of citral accumulation in Cymbopogon citratus (E. Lewinsohn etal 1982) ,where the aldehyde- specific Schiff's reagent was used to detect the monoterpene aldehydes neral and geranial (citral), and the lipid stains Sudan red and Nile blue were used to locate essential oil in leaves of Salvia aurea (G. Serrato-Valenti etal 1997) Histochemistry is the branch of histology dealing with the identification of chemical components of cells and tissues. Starch deposition occurs widely in the plant body, but the particularly common places of its accumulation are seeds, the parenchyma of the secondary vascular tissues in the stem and root, tubers, rhizomes and corn (V. B. Kadam, 1999) Starch and proteins are the principal ergastic substances of the protoplast (E.
  • Comparative Vegetative Anatomy and Systematics of the Angraecoids (Vandeae, Orchidaceae) with an Emphasis on the Leafless Habit Barbara S

    Comparative Vegetative Anatomy and Systematics of the Angraecoids (Vandeae, Orchidaceae) with an Emphasis on the Leafless Habit Barbara S

    Eastern Illinois University The Keep Faculty Research & Creative Activity Biological Sciences January 2006 Comparative vegetative anatomy and systematics of the angraecoids (Vandeae, Orchidaceae) with an emphasis on the leafless habit Barbara S. Carlsward Eastern Illinois University, [email protected] William Louis Stern University of Florida, Gainesville Benny Bytebier University of Stellenbosch Follow this and additional works at: http://thekeep.eiu.edu/bio_fac Part of the Biology Commons Recommended Citation Carlsward, Barbara S.; Stern, William Louis; and Bytebier, Benny, "Comparative vegetative anatomy and systematics of the angraecoids (Vandeae, Orchidaceae) with an emphasis on the leafless habit" (2006). Faculty Research & Creative Activity. 259. http://thekeep.eiu.edu/bio_fac/259 This Article is brought to you for free and open access by the Biological Sciences at The Keep. It has been accepted for inclusion in Faculty Research & Creative Activity by an authorized administrator of The Keep. For more information, please contact [email protected]. Comparative vegetative anatomy and systematics of the angraecoids (Vandeae, Orchidaceae) with an emphasis on the leafless habit BARBARA S. CARLSWARD, WILLIAM LOUIS STERN, and BENNY BYTEBIER Abstract The vegetative anatomy and morphology of 142 species of the angraecoid orchids (Angraecinae + Aerangidinae) and 18 species of Aeridinae were examined using light and scanning electron microscopy. Leafless members of Vandeae were of particular interest because of their unique growth habit. Leafy and leafless members of Angraecinae and Aerangidinae were examined and compared with specimens of Aeridinae. Vandeae were homogeneous in both leaf and root anatomy. A foliar hypodermis and fibre bundles were generally absent. Stegmata with spherical silica bodies were found associated with sclerenchyma and restricted to leaves in almost all specimens examined.