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Journal articles on the topic 'Interactions pollen–pistil'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Palanivelu, Ravishankar, and Mark A. Johnson. "Functional genomics of pollen tube–pistil interactions in Arabidopsis." Biochemical Society Transactions 38, no. 2 (March 22, 2010): 593–97. http://dx.doi.org/10.1042/bst0380593.

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The pollen tube represents an attractive model system for functional genomic analysis of the cell–cell interactions that mediate guided cellular growth. The pollen tube extends through pistil tissues and responds to guidance cues that direct the tube towards an ovule, where it releases sperm for fertilization. Pollen is readily isolated from anthers, where it is produced, and can be induced to produce a tube in vitro. Interestingly, pollen tube growth is significantly enhanced in pistils, and pollen tubes are rendered competent to respond to guidance cues after growth in a pistil. This potentiation of the pollen tube by the pistil suggested that pollen tubes alter their gene-expression programme in response to their environment. Recently, the transcriptomes of pollen tubes grown in vitro or through pistil tissues were determined. Significant changes in the transcriptome were found to accompany growth in vitro and through the pistil tissues. Reverse genetic analysis of pollen-tube-induced genes identified a new set of factors critical for pollen tube extension and navigation of the pistil environment. Recent advances reviewed in the present paper suggest that functional genomic analysis of pollen tubes has the potential to uncover the regulatory networks that shape the genetic architecture of the pollen tube as it responds to migratory cues produced by the pistil.

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2

Kandasamy, M. K., J. B. Nasrallah, and M. E. Nasrallah. "Pollen-pistil interactions and developmental regulation of pollen tube growth in Arabidopsis." Development 120, no. 12 (December 1, 1994): 3405–18. http://dx.doi.org/10.1242/dev.120.12.3405.

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A developmental analysis of pollination responses in Arabidopsis implicates pollen as well as stigma maturation factors in the acquisition of reproductive function. In the anther, competence of pollen to germinate and to produce pollen tubes in situ occurred late in development. In the pistil, competence to support pollen germination and tube growth extended over a broad developmental window, and abundant as well as efficient pollen tube development was observed on pistils at anthesis and for a period of 1–2 days prior to flower opening. In contrast, pollen tube growth on immature pistils was found to proceed at low efficiency, at reduced growth rates, and with lack of directionality. Based on the pattern of pollen tube growth at different stages of pistil maturation, temporally regulated signals emanating from specialized cells of the pistil are inferred to be operative in each of the four identified phases of pollen tube growth. In the stigma and the stylar transmitting tissue, these signals directed the path of intra-specific pollen tubes as well as pollen tubes from another cruciferous genera, Brassica. By contrast, in the ovary, signaling by the ovule was effective only on intra-specific pollen tubes and was thus identified as the basis of inter-specific incompatibility. Furthermore, the acquisition of reproductive function was found to involve, in addition to the induction of a variety of stimulatory signals, a heretofore unrecognized developmental restriction in the capacity of epidermal surfaces of the flower to support pollen tube growth.

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3

Cheung, Alice Y. "Pollen—pistil interactions during pollen-tube growth." Trends in Plant Science 1, no. 2 (February 1996): 45–51. http://dx.doi.org/10.1016/s1360-1385(96)80028-8.

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4

Herscovitch, J. Clare, and Anthony R. H. Martin. "Pollen-pistil interactions inGrevillea banksii." Grana 28, no. 2 (June 1989): 69–84. http://dx.doi.org/10.1080/00173138909429958.

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5

Herscovitch, J. Clare, and Anthony R. H. Martin. "Pollen-pistil interactions inGrevillea banksii." Grana 29, no. 1 (January 1990): 5–17. http://dx.doi.org/10.1080/00173139009429973.

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6

Gaude, Thierry, and Sheila McCormick. "Signaling in pollen–pistil interactions." Seminars in Cell & Developmental Biology 10, no. 2 (April 1999): 139–47. http://dx.doi.org/10.1006/scdb.1999.0289.

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7

Broz, Amanda K., and Patricia A. Bedinger. "Pollen-Pistil Interactions as Reproductive Barriers." Annual Review of Plant Biology 72, no. 1 (June 17, 2021): 615–39. http://dx.doi.org/10.1146/annurev-arplant-080620-102159.

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Pollen-pistil interactions serve as important prezygotic reproductive barriers that play a critical role in mate selection in plants. Here, we highlight recent progress toward understanding the molecular basis of pollen-pistil interactions as reproductive isolating barriers. These barriers can be active systems of pollen rejection, or they can result from a mismatch of required male and female factors. In some cases, the barriers are mechanistically linked to self-incompatibility systems, while others represent completely independent processes. Pollen-pistil reproductive barriers can act as soon as pollen is deposited on a stigma, where penetration of heterospecific pollen tubes is blocked by the stigma papillae. As pollen tubes extend, the female transmitting tissue can selectively limit growth by producing cell wall–modifying enzymes and cytotoxins that interact with the growing pollen tube. At ovules, differential pollen tube attraction and inhibition of sperm cell release can act as barriers to heterospecific pollen tubes.

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8

CHEUNG, A. "Pollen?Pistil Interactions in Nicotiana tabacum." Annals of Botany 85 (March 2000): 29–37. http://dx.doi.org/10.1006/anbo.1999.1016.

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9

Higashiyama, T. "Peptide Signaling in Pollen-Pistil Interactions." Plant and Cell Physiology 51, no. 2 (January 16, 2010): 177–89. http://dx.doi.org/10.1093/pcp/pcq008.

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10

Swanson, Robert, Anna F. Edlund, and Daphne Preuss. "Species Specificity in Pollen-Pistil Interactions." Annual Review of Genetics 38, no. 1 (December 2004): 793–818. http://dx.doi.org/10.1146/annurev.genet.38.072902.092356.

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11

Cheung, A. Y. "Pollen-pistil interactions in compatible pollination." Proceedings of the National Academy of Sciences 92, no. 8 (April 11, 1995): 3077–80. http://dx.doi.org/10.1073/pnas.92.8.3077.

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12

CAIOLA, M. GRILLI, and F. BRANDIZZI. "Pollen-pistil interactions inHermodactylus tuberosusMill. (Iridaceae)." Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology 131, no. 3 (January 1997): 197–205. http://dx.doi.org/10.1080/11263504.1997.10654182.

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13

Giranton, Jean-Loïc, Eugénie Passelègue, Christian Dumas, Jeremy Mark Cock, and Thierry Gaude. "Membrane proteins involved in pollen-pistil interactions." Biochimie 81, no. 6 (June 1999): 675–80. http://dx.doi.org/10.1016/s0300-9084(99)80125-4.

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14

McCormick, Sheila. "Self-incompatibility and other pollen-pistil interactions." Current Opinion in Plant Biology 1, no. 1 (February 1998): 18–25. http://dx.doi.org/10.1016/s1369-5266(98)80122-2.

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15

Kumar, A., and B. McClure. "Pollen-pistil interactions and the endomembrane system." Journal of Experimental Botany 61, no. 7 (April 1, 2010): 2001–13. http://dx.doi.org/10.1093/jxb/erq065.

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16

Mohindra, Vindhya, and J. L. Minocha. "Pollen pistil interactions and interspecific incompatibility in Pennisetum." Euphytica 56, no. 1 (July 1991): 1–5. http://dx.doi.org/10.1007/bf00041737.

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17

Fu, Ziyang, and Pingfang Yang. "Proteomics Advances in the Understanding of Pollen–Pistil Interactions." Proteomes 2, no. 4 (September 29, 2014): 468–84. http://dx.doi.org/10.3390/proteomes2040468.

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18

Wheeler, M. J., V. E. Franklin-Tong, and F. C. H. Franklin. "The molecular and genetic basis of pollen-pistil interactions." New Phytologist 151, no. 3 (September 2001): 565–84. http://dx.doi.org/10.1046/j.0028-646x.2001.00229.x.

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19

Chapman, L. A., and D. R. Goring. "Pollen-pistil interactions regulating successful fertilization in the Brassicaceae." Journal of Experimental Botany 61, no. 7 (February 24, 2010): 1987–99. http://dx.doi.org/10.1093/jxb/erq021.

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20

McCubbin, Andrew G., and Teh-hui Kao. "Molecular Recognition and Response in Pollen and Pistil Interactions." Annual Review of Cell and Developmental Biology 16, no. 1 (November 2000): 333–64. http://dx.doi.org/10.1146/annurev.cellbio.16.1.333.

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21

Distefano, G., A. Gentile, and M. Herrero. "Pollen–pistil interactions and early fruiting in parthenocarpic citrus." Annals of Botany 108, no. 3 (July 27, 2011): 499–509. http://dx.doi.org/10.1093/aob/mcr187.

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22

Bedinger, Patricia A., Amanda K. Broz, Alejandro Tovar-Mendez, and Bruce McClure. "Pollen-Pistil Interactions and Their Role in Mate Selection." Plant Physiology 173, no. 1 (November 29, 2016): 79–90. http://dx.doi.org/10.1104/pp.16.01286.

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23

Seth, Romit, Abhishek Bhandawat, Rajni Parmar, Pradeep Singh, Sanjay Kumar, and Ram Sharma. "Global Transcriptional Insights of Pollen-Pistil Interactions Commencing Self-Incompatibility and Fertilization in Tea [Camellia sinensis (L.) O. Kuntze]." International Journal of Molecular Sciences 20, no. 3 (January 28, 2019): 539. http://dx.doi.org/10.3390/ijms20030539.

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This study explicates molecular insights commencing Self-Incompatibility (SI) and CC (cross-compatibility/fertilization) in self (SP) and cross (CP) pollinated pistils of tea. The fluorescence microscopy analysis revealed ceased/deviated pollen tubes in SP, while successful fertilization occurred in CP at 48 HAP. Global transcriptome sequencing of SP and CP pistils generated 109.7 million reads with overall 77.9% mapping rate to draft tea genome. Furthermore, concatenated de novo assembly resulted into 48,163 transcripts. Functional annotations and enrichment analysis (KEGG & GO) resulted into 3793 differentially expressed genes (DEGs). Among these, de novo and reference-based expression analysis identified 195 DEGs involved in pollen-pistil interaction. Interestingly, the presence of 182 genes [PT germination & elongation (67), S-locus (11), fertilization (43), disease resistance protein (30) and abscission (31)] in a major hub of the protein-protein interactome network suggests a complex signaling cascade commencing SI/CC. Furthermore, tissue-specific qRT-PCR analysis affirmed the localized expression of 42 DE putative key candidates in stigma-style and ovary, and suggested that LSI initiated in style and was sustained up to ovary with the active involvement of csRNS, SRKs & SKIPs during SP. Nonetheless, COBL10, RALF, FERONIA-rlk, LLG and MAPKs were possibly facilitating fertilization. The current study comprehensively unravels molecular insights of phase-specific pollen-pistil interaction during SI and fertilization, which can be utilized to enhance breeding efficiency and genetic improvement in tea.

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24

Leydon, Alexander R., Adisorn Chaibang, and Mark A. Johnson. "Interactions between pollen tube and pistil control pollen tube identity and sperm release in the Arabidopsis female gametophyte." Biochemical Society Transactions 42, no. 2 (March 20, 2014): 340–45. http://dx.doi.org/10.1042/bst20130223.

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Flowering plants have immotile sperm that develop within the pollen cytoplasm and are delivered to female gametes by a pollen tube, a highly polarized extension of the pollen cell. In many flowering plant species, including seed crop plants, hundreds of pollen tubes grow towards a limited number of ovules. This system should ensure maximal fertilization of ovules and seed production; however, we know very little about how signalling between the critical cells is integrated to orchestrate delivery of two functional sperm to each ovule. Recent studies suggest that the pollen tube changes its gene-expression programme in response to growth through pistil tissue and that this differentiation process is critical for pollen tube attraction by the female gametophyte and for release of sperm. Interestingly, these two signalling systems, called pollen tube guidance and pollen tube reception, are also species-preferential. The present review focuses on Arabidopsis pollen tube differentiation within the pistil and addresses the idea that pollen tube differentiation defines pollen tube identity and recognition by female cells. We review recent identification of genes that may control pollen tube–female gametophyte recognition and discuss how these may be involved in blocking interspecific hybridization.

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25

Roulston, T'ai H., James H. Cane, and Stephen L. Buchmann. "WHAT GOVERNS PROTEIN CONTENT OF POLLEN: POLLINATOR PREFERENCES, POLLEN–PISTIL INTERACTIONS, OR PHYLOGENY?" Ecological Monographs 70, no. 4 (November 2000): 617–43. http://dx.doi.org/10.1890/0012-9615(2000)070[0617:wgpcop]2.0.co;2.

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26

Roulston, T'ai H., James H. Cane, and Stephen L. Buchmann. "What Governs Protein Content of Pollen: Pollinator Preferences, Pollen-Pistil Interactions, or Phylogeny?" Ecological Monographs 70, no. 4 (November 2000): 617. http://dx.doi.org/10.2307/2657188.

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27

Singh, A., T. D. Perdue, and D. J. Paolillo. "Pollen-pistil interactions inBrassica oleracea: Cell calcium in self and cross pollen grains." Protoplasma 151, no. 1 (February 1989): 57–61. http://dx.doi.org/10.1007/bf01403301.

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28

Egerton-Warbuton, LM, BJ Griffin, and BB Lamont. "Pollen̵1Pistil Interactions in Eucalyptus calophylla Provide No Evidence of a Selection Mechanism for Aluminium Tolerance." Australian Journal of Botany 41, no. 5 (1993): 541. http://dx.doi.org/10.1071/bt9930541.

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Selection for aluminium (Al) tolerance was assessed by studying pollen-pistil interactions in Eucalyptus calophylla trees colonising a 30-year-old abandoned coal mine-site (soil pH 4.3) compared with E. calophylla trees on an adjacent forest-site (soil pH 5.3). Energy-dispersive X-ray micro-analysis of reproductive tissues demonstrated that low levels of Al occurred in the stigma, lower style and unfertilised ovules of forest-site flowers. In contrast, significantly higher levels of Al were detected in all reproductive tissues of mine-site flowers. Al concentrations were higher at the base of the style than in the stigma. Al was also detected in stigmatic exudates of mine-site flowers. Selection for Al tolerance occurred in the anther of mine-site flowers as pollen from mine-site flowers germinated six-fold (15.6%) compared with forest-site pollen (2.6%) at the highest concentration of Al (22 ppm) used. However, the rate of pollen tube growth was not significantly different between mine- and forest-sites at any Al concentration. Tolerance of Al by the mine-site pollen was not shared by the progeny as there was no increase in the survival or growth of mine-site seedlings in mine soils over forest-site seedlings. Controlled pollinations between mine-/forest-site pollen and mine-site pistils demonstrated that there was no significant difference in the number of mine- or forest-site pollen tubes at any level in the style in mine-site pistils. Pollen tube abnormalities principally occurred in mine-site pistils. We concluded that there is no evidence yet for a genetically-based tolerance of Al in E. calophylla on coal mining soils.

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29

Nugrahapraja, Husna, Edoardo Bertolini, and Mario Enrico Pè. "Revisiting pollen-pistil interaction and cross incompatibility in maize." Current Research on Biosciences and Biotechnology 1, no. 1 (August 30, 2019): 3–12. http://dx.doi.org/10.5614/crbb.2019.1.1/dtcs2650.

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The review addressed aspects of plant fertilisation and the phenomenon of genetic cross-incompatibility in maize controlled by the Gametophyte1 locus. This phenomenon determines the failure to accomplish successful fertilisation and a full seed set when pollen grains carrying the ga1 allele pollinate female inflorescences carrying the Ga1-strong (Ga-1s) allele in the homozygous state (Ga1-s/Ga1-s). We divided the review work into several topics — first, the introduction of sexual plant reproduction. Second, pollen-pistil interactions in plants. Third, reproductive barriers during plant reproduction. Third, Incompatibility in plants. Fourth, fine mapping of the Ga1 locus in maize. Fifth, recent researches on Ga1-related cross-incompatibility in maize.

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30

Zheng, Ren, Shun Su, Hui Xiao, and Hui Tian. "Calcium: A Critical Factor in Pollen Germination and Tube Elongation." International Journal of Molecular Sciences 20, no. 2 (January 19, 2019): 420. http://dx.doi.org/10.3390/ijms20020420.

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Pollen is the male gametophyte of higher plants. Its major function is to deliver sperm cells to the ovule to ensure successful fertilization. During this process, many interactions occur among pollen tubes and pistil cells and tissues, and calcium ion (Ca2+) dynamics mediate these interactions among cells to ensure that pollen reaches the embryo sac. Although the precise functions of Ca2+ dynamics in the cells are unknown, we can speculate about its roles on the basis of its spatial and temporal characteristics during these interactions. The results of many studies indicate that calcium is a critical element that is strongly related to pollen germination and pollen tube growth.

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31

Scribailo, Robin W., and Spencer C. H. Barrett. "POLLEN-PISTIL INTERACTIONS IN TRISTYLOUS PONTEDERIA SAGITTATA (PONTEDERIACEAE). II. PATTERNS OF POLLEN TUBE GROWTH." American Journal of Botany 78, no. 12 (December 1991): 1662–82. http://dx.doi.org/10.1002/j.1537-2197.1991.tb14531.x.

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32

Pereira, Ana Marta, Diana Moreira, Sílvia Coimbra, and Simona Masiero. "Paving the Way for Fertilization: The Role of the Transmitting Tract." International Journal of Molecular Sciences 22, no. 5 (March 5, 2021): 2603. http://dx.doi.org/10.3390/ijms22052603.

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Angiosperm reproduction relies on the precise growth of the pollen tube through different pistil tissues carrying two sperm cells into the ovules’ embryo sac, where they fuse with the egg and the central cell to accomplish double fertilization and ultimately initiate seed development. A network of intrinsic and tightly regulated communication and signaling cascades, which mediate continuous interactions between the pollen tube and the sporophytic and gametophytic female tissues, ensures the fast and meticulous growth of pollen tubes along the pistil, until it reaches the ovule embryo sac. Most of the pollen tube growth occurs in a specialized tissue—the transmitting tract—connecting the stigma, the style, and the ovary. This tissue is composed of highly secretory cells responsible for producing an extensive extracellular matrix. This multifaceted matrix is proposed to support and provide nutrition and adhesion for pollen tube growth and guidance. Insights pertaining to the mechanisms that underlie these processes remain sparse due to the difficulty of accessing and manipulating the female sporophytic tissues enclosed in the pistil. Here, we summarize the current knowledge on this key step of reproduction in flowering plants with special emphasis on the female transmitting tract tissue.

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33

Liu, Yang, Valentin Joly, Sonia Dorion, Jean Rivoal, and Daniel P. Matton. "The Plant Ovule Secretome: A Different View toward Pollen–Pistil Interactions." Journal of Proteome Research 14, no. 11 (October 2, 2015): 4763–75. http://dx.doi.org/10.1021/acs.jproteome.5b00618.

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34

Kovaleva, L. V., and V. V. Roshchina. "Does cholinesterase participate in the intercellular interactions in pollen-pistil system?" Biologia plantarum 39, no. 2 (September 1, 1997): 207–13. http://dx.doi.org/10.1023/a:1000384618661.

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35

Edens‐Meier, Retha M., Nan Vance, Yi‐Bo Luo, Peng Li, Eric Westhus, and Peter Bernhardt. "Pollen‐Pistil Interactions in North American and Chinese Cypripedium L. (Orchidaceae)." International Journal of Plant Sciences 171, no. 4 (May 2010): 370–81. http://dx.doi.org/10.1086/651225.

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36

Smith, D. K., J. F. Harper, and I. S. Wallace. "A potential role for protein O-fucosylation during pollen-pistil interactions." Plant Signaling & Behavior 13, no. 5 (May 4, 2018): e1467687. http://dx.doi.org/10.1080/15592324.2018.1467687.

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37

Lenartowska, Marta, Robert Lenartowski, Dariusz Jan Smoliński, Bogdan Wróbel, Janusz Niedojadło, Krzysztof Jaworski, and Elżbieta Bednarska. "Calreticulin expression and localization in plant cells during pollen–pistil interactions." Planta 231, no. 1 (October 7, 2009): 67–77. http://dx.doi.org/10.1007/s00425-009-1024-1.

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38

McCubbin, Andrew G., Carmen Zuniga, and Teh-hui Kao. "Construction of a binary bacterial artificial chromosome library of Petunia inflata and the isolation of large genomic fragments linked to the self-incompatibility (S-) locus." Genome 43, no. 5 (October 1, 2000): 820–26. http://dx.doi.org/10.1139/g00-057.

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The Solanaceae family of flowering plants possesses a type of self-incompatibility mechanism that enables the pistil to reject self pollen but accept non-self pollen for fertilization. The pistil function in this system has been shown to be controlled by a polymorphic gene at the S-locus, termed the S-RNase gene. The pollen function is believed to be controlled by another as yet unidentified polymorphic gene at the S-locus, termed the pollen S-gene. As a first step in using a functional genomic approach to identify the pollen S-gene, a genomic BAC (bacterial artificial chromosome) library of the S2S2 genotype of Petunia inflata, a self-incompatible solanaceous species, was constructed using a Ti-plasmid based BAC vector, BIBAC2. The average insert size was 136.4 kb and the entire library represented a 7.5-fold genome coverage. Screening of the library using cDNAs for the S2-RNase gene and 13 pollen-expressed genes that are linked to the S-locus yielded 51 positive clones, with at least one positive clone for each gene. Collectively, at least 2 Mb of the chromosomal region was spanned by these clones. Together, three clones that contained the S2-RNase gene spanned ~263 kb. How this BAC library and the clones identified could be used to identify the pollen S-gene and to study other aspects of self-incompatibility is discussed.Key words: bacterial artificial chromosome, Petunia inflata, pollen-pistil interactions, self-incompatibility, S-locus.

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39

Palser, Barbara F., John L. Rouse, and Elizabeth G. Williams. "A scanning electron microscope study of the pollen tube pathway in pistils of Rhododendron." Canadian Journal of Botany 70, no. 5 (May 1, 1992): 1039–60. http://dx.doi.org/10.1139/b92-129.

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The pollen tube pathway was observed at regular intervals in pistils of four species of Rhododendron, with emphasis on Rhododendron fortunei. Rhododendron is characterized by a nonpapillate wet stigma, angled stylar canal, placentae with central clefts, and many unitegmic anatropous ovules. Receptive stigmas were hand-pollinated with self pollen 1 – 8 days after anthesis. The pollen, which occurs in permanent tetrads, started germinating during the 1st day. After crossing the stigma surface to one of the grooves leading into the stylar canal, pollen tubes grew straight through the style, and continued into the placental clefts from which they emerged onto the placental surface to grow among the ovules. Tubes reached the ovary in 5 – 10 days depending on the species and took several days after entering the upper ovary to reach the base of the placentae. Single tubes (rarely two or more) diverged from the interovular network and grew under the integument (which is close against the placental surface) to enter the slit-like micropylar opening of an ovule. The morphology of the micropylar slit and the direction of pollen tube entry showed variation among ovules. In R. fortunei ovule entries occurred first on the upper half of the placenta, though not at the top, and in ovules closest to the placental cleft. All portions of the pathway, from stigma surface to micropylar opening, are covered by exudate. Stigmatic exudate increased in amount and became more viscous after pollination, burying the pollen grains and tubes, then gradually dried. Exudate was produced in the style and ovary whether or not pollination occurred. Characteristics of the pollen tube pathway in Rhododendron are discussed relative to those in other angiosperm taxa. Key words: Rhododendron, pollen–pistil interactions, fertilization, transmitting tissues, pistil exudates, ovule entries.

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40

Kovaleva, Lidia V. "Gametophyte-Sporophyte Interactions in Pollen-Pistil System after Compatible and Incompatible Pollination." Engei Gakkai zasshi 67, no. 6 (1998): 1143–46. http://dx.doi.org/10.2503/jjshs.67.1143.

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41

Soares, Taliane Leila, Onildo Nunes de Jesus, Everton Hilo de Souza, and Eder Jorge de Oliveira. "Reproductive biology and pollen–pistil interactions in Passiflora species with ornamental potential." Scientia Horticulturae 197 (December 2015): 339–49. http://dx.doi.org/10.1016/j.scienta.2015.09.045.

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42

Lei, Chih-Hsien, Jon T. Lindstrom, and William R. Woodson. "Regulation and Function of a Pollen-specific ACC Synthase Gene from Petunia." HortScience 30, no. 4 (July 1995): 760G—761. http://dx.doi.org/10.21273/hortsci.30.4.760g.

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At anthesis, petunia pollen contains large amounts of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC). This ACC is thought to contribute to the rapid burst of ethylene produced by the pistil following pollination. An analysis of ACC content in developing anthers revealed that ACC began to accumulate the day before anthesis, indicating its synthesis was a late event in pollen development. We employed degenerate DNA primers to conserved amino acid sequences of ACC synthesis to amplify a cDNA from anther mRNA by RT-PCR. The resulting cDNA (pACS2) was sequenced and found to represent ACC synthase. Use of pACS2 as a hybridization probe revealed an increase in ACC synthase mRNA concomitant with the increase in ACC content. Further analysis indicated the ACC synthase mRNA was localized specifically to the haploid pollen grain. In an attempt to determine the function of ACC in pollen maturation or pollen–pistil interactions, we have generated a series of transgenic petunias designed to inhibit the accumulation of ACC in pollen. For these experiments, we have employed a pollen-specific promoter (LAT52) from tomato to drive the expression of antisense pACS2 or the coding region of ACC deaminase. The results of the experiments will be discussed.

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43

McCubbin, Andrew G., Xi Wang, and Teh-hui Kao. "Identification of self-incompatibility (S-) locus linked pollen cDNA markers in Petunia inflata." Genome 43, no. 4 (August 1, 2000): 619–27. http://dx.doi.org/10.1139/g00-019.

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Solanaceous type self-incompatibility (SI) is controlled by a single polymorphic locus, termed the S-locus. The only gene at the S-locus that has been characterized thus far is the S-RNase gene, which controls pistil function, but not pollen function, in SI interactions between pistil and pollen. One approach to identifying additional genes (including the pollen S-gene, which controls pollen function in SI) at the S-locus and to study the structural organization of the S-locus is chromosome walking from the S-RNase gene. However, the presence of highly repetitive sequences in its flanking regions has made this approach difficult so far. Here, we used RNA differential display to identify pollen cDNAs of Petunia inflata, a self-incompatible solanaceous species, which exhibited restriction fragment length polymorphism (RFLP) for at least one of the three S-haplotypes (S1, S2, and S3) examined. We found that the genes corresponding to 10 groups of pollen cDNAs are genetically tightly linked to the S-RNase gene. These cDNA markers will expedite the mapping and cloning of the chromosomal region of the Solanaceae S-locus by providing multiple starting points.Key words: Petunia inflata, pollen cDNAs, self-incompatibility, S-linked cDNA markers, S-locus.

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Stuart, Mary, and Pablo Jourdan. "455 PB 326 PISTIL INFLUENCE ON GROWTH OF POLLEN TUBES OF P. X DOMESTICUM." HortScience 29, no. 5 (May 1994): 496e—496. http://dx.doi.org/10.21273/hortsci.29.5.496e.

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The regal pelargonium (P. x domesticum) is generally characterized by low fertility and poor seed set. In studys designed to assess factors that contribute to low fecundity in this crop we have examined genotype interactions among various cultivars and have identified lines that differ in degree of male and female fertility. The objective of this study was to examine genotypic variation, other than self-incompatibility, of P. x domesticum pistils in supporting the development of the male gametophyte. Variation in pollen germination and growth was assessed after crossing either a male of high fertility or a mate of poor fertility to nine different selections of varying female fertility. Styles were harvested 2 hours after pollination and examined using fluorescence microscopy to determine the number of germinated pollen grains on the stigma and the number of pollen tubes growing down the style. Female selections displayed large differences in their ability to support pollen tubes. Styles from different females pollinated with the same male varied in average number of pollen tubes from 30 to 2.

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Alves, Camila M. L., Andrzej K. Noyszewski, and Alan G. Smith. "Nicotiana tabacum pollen–pistil interactions show unexpected spatial and temporal differences in pollen tube growth among genotypes." Plant Reproduction 32, no. 4 (July 29, 2019): 341–52. http://dx.doi.org/10.1007/s00497-019-00375-8.

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Hamlin, Jennafer A. P., Natasha A. Sherman, and Leonie C. Moyle. "Two Loci Contribute Epistastically to Heterospecific Pollen Rejection, a Postmating Isolating Barrier Between Species." G3 Genes|Genomes|Genetics 7, no. 7 (July 1, 2017): 2151–59. http://dx.doi.org/10.1534/g3.117.041673.

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Abstract Recognition and rejection of heterospecific male gametes occurs in a broad range of taxa, although the complexity of mechanisms underlying these components of postmating cryptic female choice is poorly understood. In plants, the arena for postmating interactions is the female reproductive tract (pistil), within which heterospecific pollen tube growth can be arrested via active molecular recognition and rejection. Unilateral incompatibility (UI) is one such postmating barrier in which pollen arrest occurs in only one direction of an interspecific cross. We investigated the genetic basis of pistil-side UI between Solanum species, with the specific goal of understanding the role and magnitude of epistasis between UI QTL. Using heterospecific introgression lines (ILs) between Solanum pennellii and S. lycopersicum, we assessed the individual and pairwise effects of three chromosomal regions (ui1.1, ui3.1, and ui12.1) previously associated with interspecific UI among Solanum species. Specifically, we generated double introgression (‘pyramided’) genotypes that combined ui12.1 with each of ui1.1 and ui3.1, and assessed the strength of UI pollen rejection in the pyramided lines, compared to single introgression genotypes. We found that none of the three QTL individually showed UI rejection phenotypes, but lines combining ui3.1 and ui12.1 showed significant pistil-side pollen rejection. Furthermore, double ILs (DILs) that combined different chromosomal regions overlapping ui3.1 differed significantly in their rate of UI, consistent with at least two genetic factors on chromosome three contributing quantitatively to interspecific pollen rejection. Together, our data indicate that loci on both chromosomes 3 and 12 are jointly required for the expression of UI between S. pennellii and S. lycopersicum, suggesting that coordinated molecular interactions among a relatively few loci underlie the expression of this postmating prezygotic barrier. In addition, in conjunction with previous data, at least one of these loci appears to also contribute to conspecific self-incompatibility (SI), consistent with a partially shared genetic basis between inter- and intraspecific mechanisms of postmating prezygotic female choice.

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Silva, L., J. Sanzol, M. Herrero, and C. M. Oliveira. "STUDY OF POLLEN-PISTIL INTERACTIONS ON CROSSES BETWEEN 'ROCHA' PEAR AND POTENTIAL POLLINATORS." Acta Horticulturae, no. 800 (October 2008): 205–10. http://dx.doi.org/10.17660/actahortic.2008.800.22.

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Kenrick, J. "Review of pollen - pistil interactions and their relevance to the reproductive biology of Acacia." Australian Systematic Botany 16, no. 1 (2003): 119. http://dx.doi.org/10.1071/sb02005.

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Some of the published work on the reproductive biology of acacias is reviewed. The material selected refers to a few members of each of the three subgenera: Acacia, Aculieferum and Phyllodineae. Particular reference is made to anatomy, floral development and pollen–stigma interactions. Factors relevant to reproduction, including pollinators, self-incompatibility and fruit set are discussed.

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Shimizu, K. K., and K. Okada. "Attractive and repulsive interactions between female and male gametophytes in Arabidopsis pollen tube guidance." Development 127, no. 20 (October 15, 2000): 4511–18. http://dx.doi.org/10.1242/dev.127.20.4511.

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Sexual reproduction in plants, unlike that of animals, requires the action of multicellular haploid gametophytes. The male gametophyte (pollen tube) is guided to a female gametophyte through diploid sporophytic cells in the pistil. While interactions between the pollen tube and diploid cells have been described, little is known about the intercellular recognition systems between the pollen tube and the female gametophyte. In particular, the mechanisms that enable only one pollen tube to interact with each female gametophyte, thereby preventing polysperm, are not understood. We isolated female gametophyte mutants named magatama (maa) from Arabidopsis thaliana by screening for siliques containing half the normal number of mature seeds. In maa1 and maa3 mutants, in which the development of the female gametophyte was delayed, pollen tube guidance was affected. Pollen tubes were directed to mutant female gametophytes, but they lost their way just before entering the micropyle and elongated in random directions. Moreover, the mutant female gametophytes attracted two pollen tubes at a high frequency. To explain the interaction between gametophytes, we propose a monogamy model in which a female gametophyte emits two attractants and prevents polyspermy. This prevention process by the female gametophyte could increase a plant's inclusive fitness by facilitating the fertilization of sibling female gametophytes. In addition, repulsion between pollen tubes might help prevent polyspermy. The reproductive isolations observed in interspecific crosses in Brassicaceae are also consistent with the monogamy model.

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Nishida, Sachiko, Masahiro M. Kanaoka, Keisuke Hashimoto, Koh-Ichi Takakura, and Takayoshi Nishida. "Pollen-pistil interactions in reproductive interference: comparisons of heterospecific pollen tube growth from alien species between two nativeTaraxacumspecies." Functional Ecology 28, no. 2 (September 20, 2013): 450–57. http://dx.doi.org/10.1111/1365-2435.12165.

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