Abstract
Nectaries and nectar have received much research attention for well over 200 years due to their central roles in plant–pollinator interactions. Despite this, only a few genes have demonstrated impacts on nectary development, and none have been reported to mediate de novo nectar production. This scarcity of information is largely due to the lack of a model that combines sizeable nectaries, and high levels of nectar production, along with suitable genomics resources. For example, even though Arabidopsis thaliana has been useful for developmental studies, it has been largely overlooked as a model for studying nectary function due to the small size of its flowers. However, Arabidopsis nectaries, along with those of related species, are quite operational and can be used to discern molecular mechanisms of nectary form and function. A current understanding of the machinery underlying nectary function in plants is briefly presented, with emphasis placed on the prospects of using Arabidopsis as a model for studying these processes.
Similar content being viewed by others
References
Aloni R, Schwalm K, Langhans M, Ullrich CI (2003) Gradual shifts in sites of free-auxin production during leaf-primordium development and their role in vascular differentiation and leaf morphogenesis in Arabidopsis. Planta 216:841–853
Aloni R, Aloni E, Langhans M, Ullrich CI (2006) Role of auxin in regulating Arabidopsis flower development. Planta 223:315–328
Baker HG (1978) Chemical aspects of the pollination of woody plants in the tropics. In: Tomlinson PB, Zimmerman M (eds) Tropical trees as living systems. Cambridge University Press, New York, pp 57–82
Baker H, Baker I (1973) Amino acids in nectar and their evolutionary significance. Nature 241:543–545
Baker HG, Baker I (1982) Chemical constituents of nectar in relation to pollination mechanisms and phylogeny. In: Nitecki MH (ed) Biochemical aspects of evolutionary biology. University of Chicago Press, Chicago, pp 131–171
Baker H, Baker I (1975) Studies of nectar-constitution and pollinator-plant coevolution. In: Gilbert LE, Raven PH (eds) Coevolution of animals and plants. University of Texas Press, Austin, pp 100–140
Baker H, Baker I (1983) A brief historical review of chemistry of floral nectar. In: Bentley BL (ed) The biology of nectaries. Columbia University Press, New York, pp 126–152
Baum SF, Eshed Y, Bowman JL (2001) The Arabidopsis nectary is an ABC-independent floral structure. Development 128:4657–4667
Bernardello G (2007) A systematic survey of floral nectaries. In: Nicolson SW, Nepi M, Pacini E (eds) Nectaries and nectar. Springer, Netherlands, pp 129–166
Bowman JL (1994) Arabidopsis: an atlas of morphology and development. Springer-Verlag, New York
Bowman JL, Smyth DR (1999) CRABS CLAW, a gene that regulates carpel and nectary development in Arabidopsis, encodes a novel protein with zinc finger and helix-loop-helix domains. Development 126:2387–2396
Brandenburg A, Dell’olivo A, Bshary R, Kuhlemeier C (2009) The sweetest thing advances in nectar research. Curr Opin Plant Biol 12:1–5
Carter C, Thornburg RW (2004) Is the nectar redox cycle a floral defense against microbial attack? Trends Plant Sci 9:320–324
Carter C, Graham RA, Thornburg RW (1999) Nectarin I is a novel, soluble germin-like protein expressed in the nectar of Nicotiana sp. Plant Mol Biol 41:207–216
Cutler SR, Ehrhardt DW, Griffitts JS, Somerville CR (2000) Random GFP:cDNA fusions enable visualization of subcellular structures in cells of Arabidopsis at a high frequency. Proc Natl Acad Sci USA 97:3718–3723
Davis AR (2001) Searching and breeding for structural features of flowers correlated with high nectar-carbohydrate production. Acta Hortic 561:107–121
Davis A, Peterson R, Shuel R (1986) Anatomy and vasculature of the floral nectaries of Brassica napus (Brassicaceae). Can J Bot 64:2508–2516
Davis AR, Fowke LC, Sawhney VK, Low NH (1996) Floral nectar secretion and ploidy in Brassica rapa and B. napus (Brassicaceae) II. Quantified variability of nectary structure and function in rapid-cycling lines. Ann Bot 77:223–234
Davis AR, Pylatuik JD, Paradis JC, Low NH (1998) Nectar-carbohydrate production and composition vary in relation to nectary anatomy and location within individual flowers of several species of Brassicaceae. Planta 205:305–318
De la Barrera E, Nobel PS (2004) Nectar: properties, floral aspects, and speculations on origin. Trends Plant Sci 9:65–69
Deeken R, Geiger D, Fromm J, Koroleva O, Ache P, Langenfeld-Heyser R, Sauer N, May ST, Hedrich R (2002) Loss of the AKT2/3 potassium channel affects sugar loading into the phloem of Arabidopsis. Planta 216:334–344
Deinzer ML, Thomson PA, Burgett DM, Isaacson DL (1977) Pyrrolizidine alkaloids: their occurrence in honey from tansy ragwort (Senecio jacobaea L.). Science 195:497–499
Di Sansebastiano GP, Paris N, Marc-Martin S, Neuhaus JM (2001) Regeneration of a lytic central vacuole and of neutral peripheral vacuoles can be visualized by green fluorescent proteins targeted to either type of vacuoles. Plant Physiol 126:78–86
Durkee LT (1982) The floral and extra-floral nectaries of Passiflora. II. The extra-floral nectary. Am J Bot 69:1420–1428
Durkee LT (1983) The ultrastructure of floral and extrafloral nectaries. In: Bentley B, Elias T (eds) The biology of nectaries. Columbia University Press, New York, pp 1–29
Ecroyd CE, Franich RA, Kroese HW, Steward D (1995) Volatile constituents of Cactylanthus taylorii flower nectar in relation to flower pollination and browsing by animals. Phytochemistry 40:1387–1389
Elias T, Gelband H (1977) Morphology, anatomy, and relationship of extrafloral nectaries and hydathodes in two species of Impatiens (Balsaminaceae). Botanical Gazette 138:206–212
Endress P (1994) Diversity and evolutionary biology of tropical flowers. Cambridge University Press, Cambridge
Fahn A (1979a) Secretory tissues in plants. Academic Press, London
Fahn A (1979b) Ultrastructure of nectaries in relation to nectar secretion. Am J Bot 66:977–985
Fahn A (1988) Tansley review No. 14 secretory tissues in vascular plants. New Phytol 108:229–257
Fallahi H, Scofield GN, Badger MR, Chow WS, Furbank RT, Ruan YL (2008) Localization of sucrose synthase in developing seed and siliques of Arabidopsis thaliana reveals diverse roles for SUS during development. J Exp Bot 59:3283–3295
Ferreres F, Andrade P, Gil MI, Tomas Barberan FA (1996) Floral nectar phenolics as biochemical markers for the botanical origin of heather honey. Z Lebensm Unters Forsch 202:40–44
Galliot C, Hoballah ME, Kuhlemeier C, Stuurman J (2006a) Genetics of flower size and nectar volume in Petunia pollination syndromes. Planta 225:203–212
Galliot C, Stuurman J, Kuhlemeier C (2006b) The genetic dissection of floral pollination syndromes. Curr Opin Plant Biol 9:78–82
Ge YX, Angenent GC, Wittich PE, Peters J, Franken J, Busscher M, Zhang LM, Dahlhaus E, Kater MM, Wullems GJ, Creemers-Molenaar T (2000) NEC1, a novel gene, highly expressed in nectary tissue of Petunia hybrida. Plant J 24:725–734
Grebe M, Xu J, Mobius W, Ueda T, Nakano A, Geuze HJ, Rook MB, Scheres B (2003) Arabidopsis sterol endocytosis involves actin-mediated trafficking via ARA6-positive early endosomes. Curr Biol 13:1378–1387
Griebel C, Hess G (1990) The vitamin C content of flower nectar of certain Labiatae. Z Unters Lebensm 79:168–171
Heil M (2004) Induction of two indirect defences benefits Lima bean (Phaseolus lunatus, Fabaceae) in nature. J Ecol 92:527–536
Heil M, Koch T, Hilpert A, Fiala B, Boland W, Linsenmair K (2001) Extrafloral nectar production of the ant-associated plant, Macaranga tanarius, is an induced, indirect, defensive response elicited by jasmonic acid. Proc Natl Acad Sci USA 98:1083–1088
Heinrich G (1989) Analysis of cations in nectars by means of a laser microprobe mass analyser (LAMMA). Beitr Biol Pflanz 64:293–308
Hoffmann MH, Bremer M, Schneider K, Burger F, Stolle E, Moritz G (2003) Flower visitors in a natural population of Arabidopsis thaliana. Plant Biol 5:491–494
Ishiguro S, Kawai-Oda A, Ueda J, Nishida I, Okada K (2001) The DEFECTIVE IN ANTHER DEHISCENCE1 gene encodes a novel phospholipase A1 catalyzing the initial step of jasmonic acid biosynthesis, which synchronizes pollen maturation, anther dehiscence, and flower opening in Arabidopsis. Plant Cell 13:2191–2209
Jolivet P (1992) Insects and plants: parallel evolution & adaptations. CRC Press, Boca Raton
Kram BW, Bainbridge EA, Perera MADN, Carter C (2008) Identification, cloning and characterization of a GDSL lipase secreted into the nectar of Jacaranda mimosifolia. Plant Mol Biol 68:173–183
Kram BW, Xu WW, Carter CJ (2009) Uncovering the Arabidopsis thaliana nectary transcriptome: investigation of differential gene expression in floral nectariferous tissues. BMC Plant Biol 9:92
Lee JY, Baum SF, Alvarez J, Patel A, Chitwood DH, Bowman JL (2005a) Activation of CRABS CLAW in the nectaries and carpels of Arabidopsis. Plant Cell 17:25–36
Lee JY, Baum SF, Oh SH, Jiang CZ, Chen JC, Bowman JL (2005b) Recruitment of CRABS CLAW to promote nectary development within the eudicot clade. Development 132:5021–5032
Matile P (1956) On the metabolism and the auxin dependence of nectar secretion. Berichte der Schweizerischen Botanischen Gesellschaft 66:237–266
McKim SM, Stenvik GE, Butenko MA, Kristiansen W, Cho SK, Hepworth SR, Aalen RB, Haughn GW (2008) The BLADE-ON-PETIOLE genes are essential for abscission zone formation in Arabidopsis. Development 135:1537–1546
Mishra R, Sharma S (1988) Growth regulators affect nectar-pollen production and insect foraging in Brassica seed crops. Curr Sci India 57:1297–1299
Nelson DE, Glaunsinger B, Bohnert HJ (1997) Abundant accumulation of the calcium-binding molecular chaperone calreticulin in specific floral tissues of Arabidopsis thaliana. Plant Physiol 114:29–37
Nepi M (2007) Nectary structure and ultrastructure. In: Nicolson SW, Nepi M, Pacini E (eds) Nectaries and nectar. Springer, Dordrecht, pp 129–166
Nepi M, Stpiczynska M (2008) The complexity of nectar: secretion and resorption dynamically regulate nectar features. Naturwissenschaften 95:177–184
Nieuwhof M (1963) Pollination and contamination of Brassica oleracea L. Euphytica 12:17–26
Nieuwhof M (1969) Cole crops. Leonard Hill, London
Pacini E, Nepi M (2007) Nectar production and presentation. In: Nicolson SW, Nepi M, Pacini E (eds) Nectaries and nectar. Springer, Dordrecht, pp 167–214
Pai H, Mariani C, Kao T (1997) Cytological study of pollen tube growth and early seed development in Petunia inflata. J Plant Biol 40:212–219
Pearson OH (1933) Study of the life history of Brassica oleracea. Bot Gaz 94:534–550
Peng YB, Li YQ, Hao YJ, Xu ZH, Bai SN (2004) Nectar production and transportation in the nectaries of the female Cucumis sativus L. flower during anthesis. Protoplasma 224:71–78
Peumans WJ, Smeets K, Van Nerum K, Van Leuven F, Van Damme EJ (1997) Lectin and alliinase are the predominant proteins in nectar from leek (Allium porrum L.) flowers. Planta 201:298–302
Pichersky E, Gershenzon J (2002) The formation and function of plant volatiles: perfumes for pollinator attraction and defense. Curr Opin Plant Biol 5:237–243
Rahman KA (1940) Insect pollinators of toria (Brassica napus Linn., var. dichotoma prain) and sarson (B. campestris Linn., var. sarson prain) at Lyallpur. Indian J Agr Sci 10:422–447
Rathman ES, Lanza J, Wilson J (1990) Feeding preferences of flesh flies (Sarcophaga bullata) for sugar-only vs. sugar-amino acid nectars. Am Midl Nat 124:379–389
Ren G, Healy RA, Klyne AM, Horner HT, James MG, Thornburg RW (2007a) Transient starch metabolism in ornamental tobacco floral nectaries regulates nectar composition and release. Plant Sci 173:277–290
Ren G, Healy RA, Horner HT, Martha GJ, Thornburg RW (2007b) Expression of starch metabolic genes in the developing nectaries of ornamental tobacco plants. Plant Sci 173:621–637
Robert HS, Friml J (2009) Auxin and other signals on the move in plants. Nature Chemical Biology 5:325–332
Roitsch T (1999) Source-sink regulation by sugar and stress. Curr Opin Plant Biol 2:198–206
Roshchina VV, Roshchina VD (1993) The excretory function of higher plants. Springer-Verlag, New York
Rusterholz HP, Erhardt A (2000) Can nectar properties explain sex-specific flower preferences in the Adonis blue butterfly Lysandra bellargus? Ecol Entomol 25:81–90
Schmid R, Alpert PH (1977) A test of Burk’s hypothesis relating anther dehiscence to nectar secretion. New Phytol 78:487–498
Seo HS, Song JT, Cheong JJ, Lee YH, Lee YW, Hwang I, Lee JS, Choi YD (2001) Jasmonic acid carboxyl methyltransferase: a key enzyme for jasmonate-regulated plant responses. Proc Natl Acad Sci USA 98:4788–4793
Sherson SM, Alford HL, Forbes SM, Wallace G, Smith SM (2003) Roles of cell-wall invertases and monosaccharide transporters in the growth and development of Arabidopsis. J Exp Bot 54:525–531
Shuel RW (1959) Studies of nectar secretion in excised flowers. II. The influence of certain growth regulators and enzyme inhibitors. Can J Bot 37:1167–1180
Shuel RW (1964) Nectar secretion in excised flowers. III. The dual effect of indolyl-3-acetic acid. J Apicult Res 3:99–111
Shuel RW (1978) Nectar secretion in excised flowers. V. Effects of indoleacetic acid and sugar supply on distribution of [14C]sucrose in flower tissues and nectar. Can J Bot 56:565–571
Smyth DR, Bowman JL, Meyerowitz EM (1990) Early flower development in Arabidopsis. Plant Cell 2:755–767
Song JT, Seo HS, Song SI, Lee JS, Choi YD (2000) NTR1 encodes a floral nectary-specific gene in Brassica campestris L. ssp. pekinensis. Plant Mol Biol 42:647–655
Stadler R, Truernit E, Gahrtz M, Sauer N (1999) The AtSUC1 sucrose carrier may represent the osmotic driving force for anther dehiscence and pollen tube growth in Arabidopsis. Plant J. 19:269–278
Stuurman J, Hoballah ME, Broger L, Moore J, Basten C, Kuhlemeier C (2004) Dissection of floral pollination syndromes in petunia. Genetics 168:1585–1599
Tholl D, Chen F, Petri J, Gershenzon J, Pichersky E (2005) Two sesquiterpene synthases are responsible for the complex mixture of sesquiterpenes emitted from Arabidopsis flowers. Plant J 42:757–771
Thoma S, Hecht U, Kippers A, Botella J, Devries S, Somerville C (1994) Tissue-specific expression of a gene encoding a cell wall-localized lipid transfer protein from Arabidopsis. Plant Physiol 105:35–45
Tian GW, Mohanty A, Chary SN, Li S, Paap B, Drakakaki G, Kopec CD, Li J, Ehrhardt D, Jackson D, Rhee SY, Raikhel NV, Citovsky V (2004) High-throughput fluorescent tagging of full-length Arabidopsis gene products in planta. Plant Physiol 135:25–38
Vesely V (1962) The economic effectiveness of bee pollination on winter rape (Brassica napus L., var. oleifera metz.). Min Zemedel Lesn a Vodniho Hospodar Ust Vedtach Inform Zemedel Ekon 8:659–673
Vogel S (1969) Flowers offering fatty oil instead of nectar. Abstracts XIth International Botany Congress Seattle, WA
Vogel S (1998) Remarkable nectaries: structure, ecology, organophyletic perspectives IV. Miscellaneous cases. Flora 193:225–248
Wang YS, Motes CM, Mohamalawari DR, Blancaflor EB (2004) Green fluorescent protein fusions to Arabidopsis fimbrin 1 for spatio-temporal imaging of F-actin dynamics in roots. Cell Motil Cytoskeleton 59:79–93
Weber LG (1958) Nutrition and reproduction in the Australian sheep blowfly Lucilia cuprina. Aust J Zool 6:139–144
Weijers D, Friml J (2009) Snapshot: auxin signaling and transport. Cell 136:U1172–U1200
Wenzler M, Holscher D, Oerther T, Schneider B (2008) Nectar formation and floral nectary anatomy of Anigozanthos flavidus: a combined magnetic resonance imaging and spectroscopy study. J Exp Bot 59:3425–3434
Wist TJ, Davis AR (2006) Floral nectar production and nectary anatomy and ultrastructure of Echinacea purpurea (Asteraceae). Ann Bot 97:177–193
Wist TJ, Davis AR (2008) Floral structure and dynamics of nectar production in Echinacea pallida var. angustifolia (Asteraceae). Int J Plant Sci 169:708–722
Zhu J, Hu ZH (2002) Cytological studies on the development of sieve element and floral nectary tissue in Arabidopsis thaliana. Acta Bot Sin 44:9–14
Zhu J, Hu Z, Muuml IM (1995) Ultrastructural investigations on floral nectary of Arabidopsis thaliana prepared by high pressure freezing and freeze substitution. Biol Cell 84:225
Zhu J, Hu ZH, Müller M (1997) Ultrastructure of the floral nectary of Arabidopsis thaliana L. prepared from high pressure freezing and freeze substitution. Acta Bot Sin 39:289–295
Acknowledgments
We apologize to the authors of many relevant articles not discussed earlier in this article due to space constraints. Thanks are given Mr. Jeffery Ruhlmann for providing the laser-scanning confocal microscopy image utilized herein and to Dr. Art Davis, University of Saskatchewan, for providing invaluable critical feedback on the manuscript. Portions of this work were previously unpublished and supported by funds from the United States Department of Agriculture (2006-35301-16887 to C·C.) and the National Science Foundation (0820730 to C·C.).
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by Scott Russell.
Rights and permissions
About this article
Cite this article
Kram, B.W., Carter, C.J. Arabidopsisthaliana as a model for functional nectary analysis. Sex Plant Reprod 22, 235–246 (2009). https://doi.org/10.1007/s00497-009-0112-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00497-009-0112-5