Embryology of Swainsona formosa (Fabaceae): Anther and Ovule Development

Ichwan, Budiyati

doi:10.1016/s1978-3019(16)30317-5

Cited by 4 publications

(5 citation statements)

References 11 publications

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“…It was reported by Jusaitis (1994) that the stigma of S. formosa is covered by a stigmatic cuticle that prevents pollen germination until ruptured. Such rupture can be induced by increasing fluid pressure in the style (Lord and Heslop-harrison, 1984) or subjecting the cuticle to mechanical disturbance such as visiting by birds (Heenan, 1998), bees (Sigrist and Sazima, 2004) or rubbing the stigma with fingertip (Zulkarnain, 2005), resulting in the rupturing of the cuticle. Although it may not directly correlate to stigma receptivity, misleading predictions of stigma receptivity in S. formosa may occur due to the presence of this cuticle.…”

Section: Stigma Receptivitymentioning

confidence: 99%

Pollen viability and stigma receptivity in Swainsona formosa (G.Don) J.Thompson (Fabaceae), an ornamental legume native to Australia

Ichwan

Eliyanti

Swari

2019

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Pollen viability and stigma receptivity are prerequisites for successful cross-pollination and seed set in Swainsona formosa. In this study, the pollen viabilities and stigma receptivities was assayed by in vitro pollen germination and simple hand-pollination method on glasshouse-grown plants, respectively. The viability of pollen grains was tested under three different storage conditions: 1) pollen grains were left on the plant in the glasshouse under natural conditions, 2) pollen grains were harvested and kept at a low temperature (4 o C) in total darkness, and 3) pollen grains were kept in a dry freezer (-10 o C) and in total darkness. Meanwhile, stigma receptivity was determined by hand-pollination using fresh pollen grains on flower of glasshouse-grown plants at one day before anther dehiscence up to 8 days after anther dehiscence. The results showed that pollen grains could be stored at 4 o C for up to 28 days without significantly losing their viability. Pollen longevity could be extended beyond two months when stored at -10 o C and under dry conditions. These findings provided a simple and economically sound method for storage of S. formosa pollen. In addition, stigma receptivity was found to be receptive from one day before anther dehiscence and reached its peak within four days after anther dehiscence. These results provide a valuable background to the conventional breeding of this species to create hybrids through cross-pollination

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Section: Stigma Receptivitymentioning

confidence: 99%

Pollen viability and stigma receptivity in Swainsona formosa (G.Don) J.Thompson (Fabaceae), an ornamental legume native to Australia

Ichwan

Eliyanti

Swari

2019

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“…[38] and Swainsona formosa (G. Don) Joy Thomps. [39]. The mature anther wall of P. equisetiforme and P. maritimum is characterized by well-developed endothecium also prevalent in many dicotyledonous species such as Onobrychis schahuensis Bornm [40], Acca sellowiana (O. Berg) Burret [41], and Camellia japonica L. [42].…”

Section: Discussionmentioning

confidence: 99%

Flower, seed, and fruit development in three Tunisian species of Polygonum: Implications for their taxonomy and evolution of distyly in Polygonaceae

et al. 2020

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“…The outer integument with several cell layers is common in Fabaceae (Galati et al 2006;Rodriguez-Pontes 2008;Vardar 2013). In O. persica, the outer integument has four or five layers, but in Astragalus cemerinus, A. ruscifolius and Swainsona formosa the outer integument is two or three cell layers thick (Zulkarnain 2005;Riahi and Zarre 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Embryological studies in Papilionoideae (Ashrafunnisa and Pullalah 1999;Riahi et al 2003;Faigo´n-Soverna et al 2003;Moço and Mariath 2003;Zulkarnain 2005;Galati et al 2006;Rezanejad 2007;Rodriguez-Pontes 2008;Riahi and Zarre 2009;Salinas-Gamboa et al 2016) and a few embryological studies in Onobrychis (Chehregani et al 2011;Ghassempour and Majd 2012) have provided useful characters in embryogenesis and classification. Therefore, in this study we investigate detailed embryological processes in O. persica using bright field, polarizing and fluorescence microscopy and compare them with some spices in this genus.…”

Section: Introductionmentioning

confidence: 99%

Embryology ofOnobrychis persicaSirj. and Rech.f. (Fabaceae) and its systematic implications

et al. 2016

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Developmental aspects of anther, pollen grains, ovule, embryo and seed has described in Onobrychis persica Sirj. and Rech.f. (Fabaceae) under bright field, polarizing and fluorescence microscopy. Anther development starts when the flowers are very small. The anther is tetrasporangiate, and its wall development follows the dicotyledonous type and consists of four layers: epidermis, endothecium, middle layer and a secretory tapetum. Cytokinesis is simultaneous and arrangement of microspores is tetrahedral and tetragonal. Fibrous thickenings are developed in the endothecium when shed. Ellipsoidal tricolpate pollen grains are twocelled when anthers dehisce. The young hemianatropous ovule changes to a anatropous, crassinucellar and bitegumic mature one with zigzag micropyle. Meiosis of megasporocytes results in a T-shaped tetrad. The chalazal megaspore develops into an eight-nucleate embryo sac with the pattern of Polygonum type. The polar nuclei remain separated before fertilization. After cellularization of endosperm, peripheral cells show dense lipid content. The axial embryo shows fleshy cotyledons, which accumulate lipid and starch. The inner integument differentiates into an endothelium and largely vanishes during development while the outer one produces several layers and establishes the typical seed coat structure: macrosclereid cells, osteosclereids and parenchyma cells. Different compounds, such as starch and lipid content were demonstrated with special staining in the tissues. The systematic significance of the embryological characters is discussed in O. persica.

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Embryology of Swainsona formosa (Fabaceae): Anther and Ovule Development

Cited by 4 publications

References 11 publications

Pollen viability and stigma receptivity in Swainsona formosa (G.Don) J.Thompson (Fabaceae), an ornamental legume native to Australia

Pollen viability and stigma receptivity in Swainsona formosa (G.Don) J.Thompson (Fabaceae), an ornamental legume native to Australia

Flower, seed, and fruit development in three Tunisian species of Polygonum: Implications for their taxonomy and evolution of distyly in Polygonaceae

Embryology ofOnobrychis persicaSirj. and Rech.f. (Fabaceae) and its systematic implications

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