Development of the endosperm of Myrsine laetevirens (Myrsinaceae). II. Formation of protein and lipid bodies
The sequence of events during protein and lipid deposition has been examined in the developing endosperm of Myrsine laetevirens using light and electron microscopy and chemical analyses. At 10-20 d after pollination (DAP), plastids contain starch grains and phytoferritin deposits in a crystalline ar...
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1999
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| LEADER | 08014caa a22007457a 4500 | ||
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| 001 | PAPER-19658 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518205101.0 | ||
| 008 | 190411s1999 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-0033036468 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 030 | |a IPLSE | ||
| 100 | 1 | |a Otegui, M. | |
| 245 | 1 | 0 | |a Development of the endosperm of Myrsine laetevirens (Myrsinaceae). II. Formation of protein and lipid bodies |
| 260 | |c 1999 | ||
| 270 | 1 | 0 | |m De Lederkremer, R.M.; Departamento de Quimica Organica, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina; email: lederk@qo.fcen.uba.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 504 | |a Craig, S., Goodchild, D.J., Miller, C., Structural aspects of protein accumulation in developing pea cotyledons. II. Tridimensional reconstructions of vacuoles and protein bodies from serial sections (1980) Aust J Plant Physiol, 7, pp. 329-337 | ||
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| 504 | |a Madrigal, R., Spencer, G., Plattner, R., Smith, C.R., Alkyl-and alkenylresorcinols in Rapanea laetevirens seed lipids (1977) Lipids, 12, pp. 402-406 | ||
| 504 | |a Miquel, M., Browse, J., Lipid biosynthesis in developing seeds (1995) Seed Development and Germination, pp. 169-193. , in J Kigel, G Galili, eds. Dekker, New York | ||
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| 504 | |a Otegui, M., Lima, C., Maldonado, S., De Lederkremer, R.M., Histological and chemical characterization of Myrsine laetevirens seed (1998) Int J Plant Sci, 159, pp. 762-772 | ||
| 504 | |a Development of the endosperm of Myrsine laetevirens (Myrsinaceae). I.Cellularization and deposition of cell wall storage carbohydrates (1999) Int J Plant Sci, 160, pp. 491-500 | ||
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| 504 | |a Robards, A.W., Humpherson, P.G., Phytoferritin in plastids of the cambial zone of willow (1967) Planta, 76, pp. 169-178 | ||
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| 520 | 3 | |a The sequence of events during protein and lipid deposition has been examined in the developing endosperm of Myrsine laetevirens using light and electron microscopy and chemical analyses. At 10-20 d after pollination (DAP), plastids contain starch grains and phytoferritin deposits in a crystalline arrangement. Phytoferritin disappears 30 DAP, when lipid bodies are formed via secretion from smooth endoplasmic reticulum. Rough endoplasmic reticulum and Golgi stacks are present in all stages of development but are particularly evident during protein deposition. Protein bodies arise from preexistent vacuoles or derive directly from Golgi vesicles. Deposition of the crystalloid proteins occurs between 40 and 50 DAP; the matrix proteins appear at 60-70 DAP. Analysis of fatty acids by gas-liquid chromatography revealed that lipid accumulation follows a sigmoidal pattern. During the first analyzed stage (10 DAP), the fatty acid composition corresponds to structural membrane lipids. From 20 to 60 DAP, the dominant fatty acids were C18:2, C18:1, and C16:0, in a relative proportion almost similar to that of the storage lipids from mature seeds. In the mature endosperm, matrix and buffer-soluble proteins resolve into seven bands under reducing conditions and into six bands under nonreducing conditions; some of these bands were glycosylated. The crystalloid and the insoluble protein fraction resolve into five bands under both nonreducing and reducing conditions; no band is glycosylated. |l eng | |
| 593 | |a Laboratorio de Morfologia Vegetal, Facultad de Cie. Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 la Plata, Argentina | ||
| 593 | |a Instituto de Recurs. Biologicos, INTA, 1712 Castelar, Argentina | ||
| 593 | |a Depto. de Quimica Orgánica, Facultad de Cie. Exact. y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a ENDOSPERM DEVELOPMENT |
| 690 | 1 | 0 | |a LIPIDS |
| 690 | 1 | 0 | |a MYRSINE LAETEVIRENS |
| 690 | 1 | 0 | |a PHYTOFERRITIN |
| 690 | 1 | 0 | |a PROTEINS |
| 690 | 1 | 0 | |a MYRSINE LAETEVIRENS |
| 700 | 1 | |a Maldonado, S. | |
| 700 | 1 | |a Lima, C. | |
| 700 | 1 | |a De Lederkremer, R.M. | |
| 773 | 0 | |d 1999 |g v. 160 |h pp. 501-509 |k n. 3 |p Int. J. Plant Sci. |x 10585893 |t International Journal of Plant Sciences | |
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| 856 | 4 | 0 | |u https://doi.org/10.1086/314151 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_10585893_v160_n3_p501_Otegui |y Handle |
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