Morphology and anatomy of the fruit and seed in development of Chorisia speciosa A. St.-Hil. - Bombacaceae

Marzinek, Juliana; Mourão, Káthia Socorro Mathias

doi:10.1590/s0100-84042003000100004

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…The localization of POD activity in correspondence of the vascular bundles was probably linked with the role of this enzyme in the process of lignin biosynthesis (Lee and others 2007), a fundamental step of xylem formation. A similar role could explain the presence, at early developmental stages, of peroxidases in correspondence of the seed hypostase, which is constituted by cells with lignified walls (Marzinek and Mourão 2003), and also in seed teguments during the late stages of growth. The POD activity detected in correspondence of the seed locules could contribute both to the control of the concentration of the IAA produced by the seeds and to the protection of these organs from reactive oxygen species, that are key components of seed biology (Bailly 2004).…”

Section: Discussionmentioning

confidence: 78%

Indole-3-acetic acid metabolism and growth in young kiwifruit berry

et al. 2017

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The patterns of auxin concentration and metabolism were investigated in distinct kiwifruit portions and compared with the rate of fruit growth during early developmental stages. Indole-3-acetic acid (IAA) level was higher in inner fruit tissues, particularly in younger fruit, while the hormone was barely detectable in outer tissues. Modulation of free IAA concentration did not appear to depend tightly on conjugation of the hormone. Despite the lack of a strong correlation between the levels of IAA and enzymes involved in its catabolism, in some portions of the fruit a low hormone level corresponded to a higher IAA degradation activity. An inverse correlation was also observed between hormone levels and the appearance/increase in some bands with high mobility in peroxidase gel activity assay. Phenols, compounds with a potential auxin-protecting activity, appeared to be involved mostly in photoprotection of the fruit than in the regulation of IAA levels. Beyond catabolism and conjugation, other metabolic pathways, particularly those occurring in the developing seeds, may have decisively influenced auxin levels in fruit tissues, as well as the amount of the hormone exported from the fruit. The latter, estimated by analyzing the concentration of IAA in the sap exuded from the pedicel, showed a time course which was similar to that displayed by inner fruit tissues. Furthermore, similarities were found between the pattern of IAA concentration in inner fruit tissues and fruit growth rate. The possible role of IAA in promoting growth during early fruit development is discussed

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Section: Discussionmentioning

confidence: 78%

Indole-3-acetic acid metabolism and growth in young kiwifruit berry

et al. 2017

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“…These cells had very thick walls with simple holes visible. The mesocarp derived from ovarian mesophyll that had fibrous because of the differentiation of fibers around the vascular bundles (Marzinek and Mourao 2003). The mesocarp was derived from parenchymatous cells, which were large, isodiametric, and thin walls (Retamales et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…The result showed that the mesocarp contained small granules that consistent with the reported by Murwani (2012) for Annona muricata, A. reticulata, and A. squamosa who indicated that the small granules in the mesocarp were starch because when they were reacted with KI3 (potassium iodide) solution they turn blue (Murwani 2012). The endocarp was composed of the ventral epidermis of the ovary wall, whose cells undergo a gradual elongation and lignification (Marzinek and Mourao 2003).…”

Section: Discussionmentioning

confidence: 99%

Morphology and anatomy of the fruit and seed of Cananga odorata (Lam.) Hook.f. & Thomson

2019

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Abstract. Nurhayani FO, Wulandari AS, Suharsi TK. 2019. Morphology and anatomy of the fruit and seed of Cananga odorata (Lam.) Hook.f. & Thomson. Biodiversitas 20: 3199-3206. Cananga odorata (Lam.) Hook.f. & Thomson is one of the Annonaceae family which has high benefits for humans such as constructions, furniture, cosmetics, perfumes, and traditional medicines. The planting efforts were needed to support the existence of these plants. These plants have low regeneration and germination. The morphology and anatomy of fruit and seed could enhance the understanding of the reproductive biology in the species. There is little information about the morphology and anatomy of fruit and seed of C. odorata var. odorata forma genuina. The aim of this study is to understand the morphology and anatomy of fruit and seed of C. odorata. The morphologic description was made from the analysis of the fresh fruits and seeds. The anatomical description was made from the analysis of permanent slides with longitudinal sections of the fruits and seeds. The samples were fixed, dehydrated, alcoholized, embedding in paraffin, and stained with safranin-fast green. Data analysis consists of the morphological observation (shape, color, size and the number of seeds per fruits) and the anatomical observation (the pericarp layers of fruit, the seed coat layers, and the structure in the seed). The fruit of C. odorata var. odorata forma genuina was fleshy, ovoid or obovoid, 0.98-2.75 cm long, 0.42-1.63 cm in diameter, and contain 1-12 seeds. The seeds were pale brown, flattened, ovoid, and hard. The fruit anatomy showed that the pericarp layers derived from parenchymatous cells and differentiated into three zones, i.e. exocarp, mesocarp, and endocarp. The seed has ruminated endosperm with irregular folds. The seed coat was divided into three integuments, i.e. outer, middle, and inner integument. The information about the fruit and seed anatomy of C. odorata var. odorata forma genuina might enhance the understanding of future studies regarding natural reproduction and conservation programs with generative propagation.

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Seed ontogeny of Serjania communis and Urvillea ulmacea and its relationship to transitional characters in Paullinieae (Sapindoideae, Sapindaceae)

2016

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Structural aspects of the seeds of Serjania communis Camb. and Urvillea ulmacea Kunth were described aiming to increase the knowledge about these organs in Sapindaceae. Ovules and seeds were collected at different stages of development and morphological and anatomical studies were performed according to standard techniques. Ovules are anatropous, tending or bowing to campilotropous, bitegmic, and pachychalazal; they also develop a pachychalazal, bitegmic, exotestal, and exalbuminous seed. Seeds are small, lenticular in S. communis and ellipsoid in U. ulmacea, and become campilotropous by means of the development of an invagination originating from the meristematic activity on the rapheal region. The exotesta consists of macrosclereids arranged in palisades. The other layers of the testa and the tegmen collapse up. In U. ulmacea, a cordiform aril is observed in the funicle and, as registered in the literature, it is similar to that found in Serjania inflata Poepp. & Endl. In other Serjania species there is no aril, but these two genera are considered phylogenetically close by many authors. Seed development in the studied species is similar and resembles other species of Paullinieae. Our results associated with those found in the literature seem to reinforce the transitional character of seed structures associated with fruit type in the tribe, as the reduction or absence of aril in indehiscent fruit of Serjania. However, seed ontogenetic studies must be extended to more species so as to allow reliable mapping of a larger number of characteristics of seeds on tribe phylogenies.

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Morphology and anatomy of the fruit and seed in development of Chorisia speciosa A. St.-Hil. - Bombacaceae

Cited by 9 publications

References 15 publications

Indole-3-acetic acid metabolism and growth in young kiwifruit berry

Indole-3-acetic acid metabolism and growth in young kiwifruit berry

Morphology and anatomy of the fruit and seed of Cananga odorata (Lam.) Hook.f. & Thomson

Seed ontogeny of Serjania communis and Urvillea ulmacea and its relationship to transitional characters in Paullinieae (Sapindoideae, Sapindaceae)

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