Pollination and Pollen-pistil Interaction in Oil Palm, Elaeis guineensis

Tandon, Rajesh; Manohara, T. N.; Nijalingappa, B. H. M.; Shivanna, K. R.

doi:10.1006/anbo.2001.1421

Cited by 55 publications

(49 citation statements)

References 19 publications

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“…At the young stage the canal cells are lined with a layer of cuticle; then the cuticle is ruptured as development proceeds and secretory products formed in the canal cells pass to the canal (Shivanna and Johri, 1985). The secretory material in the stylar canal is rich in polysaccharides, glycolipids, glycoproteins and lipids (Kandasamy and Kristen, 1990;Jauh and Lord, 1996;Cheung 1996;Jauh et al, 1997;Tandon et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Structure and Cytochemical Features of Stigma and Style of Ornithogalum Sigmoideum Freyn&Sint, Unpollinated and Pollinated Pistil

İsmailoğlu¹,

Ünal²

2012

Acta Biologica Cracoviensia Series Botanica

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The stigma of Ornithogalum sigmoideum is of dry and papillate type. The papillae are covered by a cuticle-pellicle layer, as revealed by staining. The activity of nonspecific esterase, acid phosphatase and peroxidase increases in the pellicle during the receptivity period. The style of O. sigmoideum is of the hollow type. Ultrastructural study of the cells lining the canal indicated that they are secretory cells and contain abundant endoplasmic reticulum, dictyosomes, mitochondria, plastids and ribosomes. After anthesis these organelles show degeneration at the end of the secretory phase. In canal cells, cytochemical tests showed the presence of acidic polyanions, insoluble and acidic polysaccharides, proteins and lipids. Before anthesis the canal cells are rich in polysaccharides, proteins and lipids. At maturity the cuticle is ruptured and secretory materials from the canal cells are released into the canal. In the unpollinated style of O. sigmoideum the exudates accumulated in the center of the canal; in pollinated pistils the same secretion materials were dispersed through the canal, which became wider. K Ke ey y w wo or rd ds s: : Ornithogalum sigmoideum, stigma, style, unpollinated style, pollinated style, cytochemistry.

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Section: Introductionmentioning

confidence: 99%

Structure and Cytochemical Features of Stigma and Style of Ornithogalum Sigmoideum Freyn&Sint, Unpollinated and Pollinated Pistil

İsmailoğlu¹,

Ünal²

2012

Acta Biologica Cracoviensia Series Botanica

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“…Kedua spesies dapat disilangkan untuk menghasilkan biji fertil (Hardon dan Tan, 1969;Tandon et al, 2001).…”

Section: Pendahuluanunclassified

PEMANFAATAN TEKNOLOGI GENOMIKA DAN TRANSFORMASI GENETIK UNTUK MENINGKATKAN PRODUKTIVITAS KELAPA SAWIT / The Use of Genomic and Genetic Transformation Technologies for Oil Palm Productivity Improvement

Tasma¹

2017

PSP

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ABSTRAKSalah satu kendala budidaya kelapa sawit adalah rendahnya produktivitas dengan rataan nasional 4 ton minyak/ha/tahun jauh dari potensinya yang dapat mencapai 18,5 ton minyak/ha/tahun. Pemuliaan kelapa sawit secara konvensional sangat lambat dan perlu waktu panjang. Diperlukan 10-12 tahun hanya untuk menyelesaikan satu siklus pemuliaan. Aplikasi teknologi genomika melalui pemuliaan berbantuan marka dan rekayasa genetika mempercepat siklus pemuliaan, mengurangi luas lahan untuk uji daya hasil, dan mempercepat pelepasan varietas unggul kelapa sawit. Tujuan dari tulisan ini untuk mengulas pemanfaatan teknologi genomika dan transformasi genetik untuk perbaikan produktivitas kelapa sawit dan potensi aplikasinya untuk perbaikan produktivitas kelapa sawit di Indonesia. Teknologi genomika telah menghasilkan peta genom acuan dua spesies kelapa sawit (Elaeis guineensis dan Elaeis oleifera) yang menghasilkan gen Shell (Sh) yang mengendalikan heterosis hasil minyak, ditemukan mekanisme terbentuknya buah mantel, dan sebagai fondasi untuk penemuan gen-gen unggul dan pengembangan marka molekuler kapasitas tinggi yang mengakselerasi program pemuliaan kelapa sawit. Pemanfaatan marka gen Sh dan kit pendeteksi bibit penghasil buah mantel mempercepat siklus pemuliaan kelapa sawit dan sarana seleksi bibit tenera unggul untuk menjamin peningkatan produktivitas kelapa sawit. Perbanyakan individu tanaman unggul terpilih dengan teknik kultur in vitro menjamin penggunaan bibit yang seragam di lapang.Teknologi rekayasa genetika potensial digunakan untuk perbaikan bahan tanaman kelapa sawit dengan kualitas dan gizi minyak tinggi serta produk kelapa sawit yang dapat digunakan sebagai bioplastik. Resekuensing tiga genotipe kelapa sawit Indonesia menghasilkan jutaan variasi genom sebagai sumberdaya pemuliaan bernilai tinggi untuk percepatan program pemuliaan kelapa sawit nasional. Teknologi genomika dan rekayasa genetika sangat potensial diaplikasikan di Indonesia mendukung program perbaikan produktivitas dan mutu minyak kelapa sawit nasional.

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“…The mating system of tropical tree species of different tropical regions of the world have been studied by several workers (BAWA, 1974;Bawa et al, 1985;BULLOCK, 1985;O'MALLEY;BAWA, 1987;HAMRICK, 1991HAMRICK, , 1992SARAIVA et al, 1996;MOMOSE et al, 1998;OLIVEIRA;GIBBS, 2000;GOODWILLIE, 2000;RIBEIRO;LOVATO, 2004;KRISHNAMURTHY et al, 1997;NAGARAJAN et al, 1997;TANDON et al, 2001TANDON et al, , 2003RAJU, 2002, FERRER et al, 2009. The study of the behaviour of plant mating system is important for acquiring knowledge about the tree inheritance patterns, and for subsequent tree improvement and breeding programmes.…”

Section: Introductionmentioning

confidence: 99%

Mating system and seedling growth of five tropical tree species

Khanduri¹

2016

Sci. For.

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ResumoUm estudo foi feito para determinar o sistema reprodutivo de três espécies arbóreas tropicais entomófilas e duas espécies ornitófilas através de cuzamentos controlados e seu impacto sobre a germinação das sementes. As espécies selecionadas foram Bombax ceiba, Erythrina stricta (ambas ornitófilas), Lagerstroemia speciosa, Mesua ferrea e Schima wallichii (todas entomófilas). O índice do valor de auto-incompatibilidade (ISI) para as distintas espécies foi de 0,00 para B. ceiba, 0,04 para E. sricta, 0,62 para L. speciosa, 0,60 para M. ferrea e 0,48 para S. wallichii. Os resultados revelaram que B. ceiba e E. sricta são espécies auto-incompatíveis, enquanto L. speciosa, M. ferrea e S. wallichii são parcialmente auto-incompatíveis. As sementes produzidas por polinização controlada resultaram em maior germinação de sementes seguidas das sementes desenvolvidas por polinização aberta em todas as espécies estudadas.Palavras-chave: Sistema reprodutivo, auto-fecundação, fecundação cruzada, fertilização floral, depressão de endogamia. AbstractThis study was conducted to estimate breeding system through controlled crosses and its impact on seed germination percentage of three entomophilous and two ornithophilous tropical woody taxa. The taxa selected were Bombax ceiba, Erythrina stricta (both ornithophilous), Lagerstroemia speciosa, Mesua ferrea and Schima wallichii (all entomophilous). The index of self incompatibility (ISI) value for different species was 0.00 for B. ceiba, 0.04 for E. sricta, 0.62 for L. speciosa, 0.60 for M. ferrea and 0.48 for S. wallichii. The results revealed that B. ceiba and E. sricta are self incompatible species whereas L. speciosa, M. ferrea and S. wallichii are partially self incompatible. The seeds produced from controlled cross-pollination proclaimed highest seed germination followed by the seeds developed through open pollination in all the study species.

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Pollination and Pollen-pistil Interaction in Oil Palm, Elaeis guineensis

Cited by 55 publications

References 19 publications

Structure and Cytochemical Features of Stigma and Style of Ornithogalum Sigmoideum Freyn&Sint, Unpollinated and Pollinated Pistil

Structure and Cytochemical Features of Stigma and Style of Ornithogalum Sigmoideum Freyn&Sint, Unpollinated and Pollinated Pistil

PEMANFAATAN TEKNOLOGI GENOMIKA DAN TRANSFORMASI GENETIK UNTUK MENINGKATKAN PRODUKTIVITAS KELAPA SAWIT / The Use of Genomic and Genetic Transformation Technologies for Oil Palm Productivity Improvement

Mating system and seedling growth of five tropical tree species

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