Ovule development, megasporogenesis, and megagametogenesis of Fouquieria fasciculata (Willd. ex Roem. & Schult.) Nash (Fouquieriaceae)

keywords: endothelium, female gametophyte, haustorium, integumentary tapetum

Abstract

Background: Fouquieriaceae is a small family that consists of a single genus, Fouquieria, with eleven species occurring mostly in arid and semiarid regions of Mexico and the southwestern United States. The development of the ovule and the female gametophyte has been poorly characterized in species of the family; thus, it is proposed to carry out a detailed study on the development of the ovule, megasporogenesis and megagametogenesis in Fouquieria fasciculata.

Questions: How are the developmental patterns of the ovule and the female gametophyte in Fouquieria fasciculata?

Study species: Fouquieria fasciculata (Willd. ex Roem. & Schult.) Nash (Fouquieriaceae).

Methods: Embryology, morphology and histochemical tests of floral buds and flowers at pre-anthesis of Fouquieria fasciculata were examined using light microscopy and scanning electron microscopy.

Results: The ovules of Fouquieria fasciculata are anatropous, bitegmic and tenuinucellate, and the micropyle is formed by the inner integument. The innermost layer cells of the inner integument form an integumentary tapetum or endothelium. The cells of integumentary tapetum are characterized by very conspicuous wall thickenings on the inner tangential side, and are radially elongated surrounding the nucellus. The pattern of development of the female gametophyte is monosporic Polygonum-type, and the formation of a lateral haustorium was observed.

Conclusions: This investigation describes in detail the development of the ovule and the female gametophyte ofFouquieria fasciculata. Our results show interesting features, such as the differentiation of an integumentary tapetum, a monosporic Polygonum-type pattern of development and the formation of lateral haustorial arm in the female gametophyte.

Downloads

Download data is not yet available.

Author Biographies

Fabiola Soto-Trejo, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México

Unidad de Biotecnología y Prototipos, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Av. De los Barrios 1, Los Reyes Iztacala, Tlalnepantla, Estado de México, CP. 54090, Mexico.

Silvia Espinosa-Matías , Facultad de Ciencias, Universidad Nacional Autónoma de México

Laboratorio de Microscopía Electrónica de Barrido, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Ciudad Universitaria, Copilco, 04510 Ciudad de México, Mexico.

Ovule development, megasporogenesis, and megagametogenesis of <em>Fouquieria fasciculata</em> (Willd. ex Roem. & Schult.) Nash (Fouquieriaceae)

References

Amlie R. 1965. The development of the embryo sac in the Fouquieriaceae. MSc. Thesis, University of Arizona.

Anderberg AA, Rydin C, Källersjö M. 2002. Phylogenetic relationships in the order Ericales sl: analyses of molecular data from five genes from the plastid and mitochondrial genomes. American Journal of Botany 89: 677-687. DOI: https://doi.org/10.3732/ajb.89.4.677

Bhojwani SS, Bhatnagar SP. 1999. The embryology of angiosperms. New Delhi: Vikas Publishing. ISBN10: 8125923462

Bozzola JL, Russell. 1992. Electron microscopy. Principles and techniques for biologists. London: Jones and Bartlett Publishers. ISBN 10: 0763701920

Carlquist S. 2000. Wood anatomy of Fouquieriaceae in relation to habit, ecology, and systematics; nature of meristems in wood and bark. Aliso: A Journal of Systematic and Floristic Botany. 19: 137-163. DOI: https://doi.org/10.5642/ALISO.20001902.03

Colombo L, Franken J, Van der Krol AR, Wittich PE, Dons HJ, Angenent GC. 1997. Downregulation of ovule-specific MADSbox genes from Petunia results in maternally controlled defects in seed development. Plant Cell 9: 703-715. DOI: https://doi.org/10.1105/tpc.9.5.703

Debeaujon I, Peeters AJ, Léon-Kloosterziel KM, Koornneef M. 2001. The TRANSPARENT TESTA12 gene of Arabidopsis encodes a multidrug secondary transporter-like protein required for flavonoid sequestration in vacuoles of the seed coat endothelium. The Plant Cell 13: 853-871. DOI: https://doi.org/10.1105/tpc.13.4.853

De Nova JA, Sánchez-Reyes LL, Eguiarte LE, Magallón S. 2018. Recent radiation and dispersal of an ancient lineage: The case of Fouquieria (Fouquiericeae, Ericales) in North American deserts. Molecular Phylogenetics and Evolution 126: 92-104. DOI: https://doi.org/10.1016/j.ympev.2018.03.026

Endress PK. 2010. Flower Structure and Trends of Evolution in Eudicots and Their Major Subclades1. Annals of the Missouri Botanical Garden 97: 541-583. DOI: https://doi.org/10.3417/2009139

Friis EM, Crane PR, Pedersen KR. 2019. The endothelium in seeds of early angiosperms. New Phytologist 224: 1419-1424. DOI: https://doi.org/10.1111/nph.16024

Govil CM. 1970. Fouquieriaceae. Bulletin of the Indian National Science Academy 41: 244-245.

Haig D. 2020. Poles apart: monosporic, bisporic, and tetrasporic embryo sacs revisited. Frontiers in Ecology and Evolution 8: 1-16. DOI: https://doi.org/10.3389/fevo.2020.516640

Henrickson J. 1967. Pollen morphology of the Fouquieriaceae. Aliso: A Journal of Systematic and Floristic Botany 6: 137-160. DOI: https://doi.org/10.5642/aliso.19670603.08

Henrickson J. 1969a. The succulents fouquierias. Cactus and Succulent Journal 41: 178-184.

Henrickson J. 1969b. Anatomy of periderm and cortex of Fouquieriaceae. Aliso: A Journal of Systematic and Floristic Botany 7: 97-126. DOI: https://doi.org/10.5642/aliso.19690701.07

Henrickson J. 1972. A taxonomic revision of Fouquieriaceae. Aliso: A Journal of Systematic and Floristic Botany 7: 439-537.

Ingram G, Nawrath C. 2017. The roles of the cuticle in plant development: organ adhesions and beyond. Journal of Experimental Botany 68: 5307-5321. DOI: https://doi.org/10.1093/jxb/erx313

Johansen D. 1936. Morphology and embriology of the Fouquieria. American Journal of Botany 23: 95-99. DOI: https://doi.org/10.2307/2436301

Johansen, D. 1940. Plant microtechnique. New York: MacGraw-Hill. ISBN 10: 0070325405

Kapil RN, Tiwari SC. 1978. The integumentary tapetum. The Botanical Review 44: 457-490. DOI: https://doi.org/10.1007/BF02860847

Khan R. 1943. The ovules and embryo sac of Fouquieria. Proceedings of the National Institute of Sciences in India 9: 253-256.

Kubitzki K. 2004. Fouquieriaceae. In: Flowering Plants· Dicotyledons. Berlin: Springer Heidelberg. pp. 195-198. ISBN 978-3-662-07257-8

Mauritzon J. 1936. Zur embryologie eineger Apriétales-Familien. Svensk Botanisk Tidskrift 30: 79-113.

O'Brien T, Feder N, McCully ME. 1964. Polychromatic staining of plant cell walls by toluidine blue O. Protoplasma 59: 368-373. DOI: https://doi.org/10.1007/BF01248568

Radchuk V, Borisjuk L. 2014. Physical, metabolic and developmental functions of the seed coat. Frontiers in plant science 5: 1-17. DOI: https://doi.org/10.3389/fpls.2014.00510

Riederer M. 2006. Introduction: biology of the plant cuticle. In: Riederer M, Müller C, eds. Biology of the Plant Cuticle. Oxford: Blackwell Publishing. pp. 1-10. ISBN 10: 140513268X

Ruzin S. 1999. Plant microtechnique and microscopy. Oxford: Oxford University Press. SBN 10: 0195089561

Schönenberger J. 2009. Comparative floral structure and systematics of Fouquieriaceae and Polemoniaceae (Ericales). International Journal of Plant Sciences 170: 1132-1167. DOI: https://doi.org/10.1086/605875

Schönenberger J, Grenhagen A. 2005. Early floral development and androecium organization in Fouquieriaceae (Ericales). Plant Systematics and Evolution 254: 233-249. DOI: https://doi.org/10.1007/s00606-005-0331-7

Schultheis M, Baldwin G. 1999. Molecular phylogenetics of Fouquieriaceae: evidence from nuclear rDNA its studies. American Journal of Botany 86: 578-589. DOI: https://doi.org/10.2307/2656819

SEMARNAT [Secretaría del Medio Ambiente y Recursos Naturales]. 2010. Norma Oficial Mexicana NOM-059-SEMARNAT-2010, Protección ambiental – Especies nativas de México de flora y fauna silvestres – Categorías de riesgo y especificaciones para su inclusión, exclusión o cambio – Lista de especies en riesgo. _Diario Oficial de la Federación_. 2da Sección, 30 de diciembre de 2010.

von Balthazar M, Schönenberger J. 2013. Comparative floral structure and systematics in the balsaminoid clade including Balsaminaceae, Marcgraviaceae and Tetrameristaceae (Ericales). Botanical Journal of the Linnean Society 173: 325-386. DOI: https://doi.org/10.1111/boj.12097

Zamudio S. 1995. Familia Fouquieriaceae. Flora del Bajío y de Regiones Adyacentes. 36: 1-7.

Published
2021-08-20
How to Cite
Soto-Trejo, F., Zamudio-Ruiz, S., & Espinosa-Matías , S. (2021). Ovule development, megasporogenesis, and megagametogenesis of Fouquieria fasciculata (Willd. ex Roem. & Schult.) Nash (Fouquieriaceae). Botanical Sciences, 99(4), 877-885. https://doi.org/10.17129/botsci.2832
Section
STRUCTURAL BOTANY / BOTÁNICA ESTRUCTURAL