Results 21 to 30 of about 28,456 (255)

Penetration of the stigma and style elicits a novel transcriptome in pollen tubes, pointing to genes critical for growth in a pistil. [PDF]

PLoS Genetics, 2009
Pollen tubes extend through pistil tissues and are guided to ovules where they release sperm for fertilization. Although pollen tubes can germinate and elongate in a synthetic medium, their trajectory is random and their growth rates are slower compared ...
Yuan Qin, Alexander R Leydon, Ann Manziello, Ritu Pandey, David Mount, Stojan Denic, Bane Vasic, Mark A Johnson, Ravishankar Palanivelu   +8 more
doaj   +1 more source

Transcriptome analysis of flower bud identified genes associated with pistil abortions between long branches and spur twigs in apricots (Prunus armeniaca L.).

PLoS ONE, 2022
Pistil abortions of flower buds occur frequently in many apricot cultivars, especially in long branches. However, the molecular mechanism underlying pistil abortion in apricots remains unclear.
Qiu-Ping Zhang, Xiao Wei
doaj   +1 more source

Ultrastructure of receptive stigma and transmitting tissue at anthesis in two pear species

Acta Agrobotanica, 2023
The ultrastructure of stigmatic and stylar secretory tissues was studied in one cultivar of Pyrus communis and six cultivars of Pyrus pyrifolia var.
Barbara Łotocka, Emilia Wysokińska, Emilian Pitera, Ewa Szpadzik   +3 more
doaj   +1 more source

Flower Biology and the Effects of Different Chemicals on Pollen Germination of Some Early Sweet Cherry Cultivars

Brazilian Archives of Biology and Technology, 2021
Sweet cherry fruit is a tasty and valuable product for consumers. In order to increase the export share of cherry, which is also very important in export, it is beneficial to grow with cherry varieties that mature at different times. The cherries offered
Hasan Cumhur Sarısu
doaj   +1 more source

Pistil Factors Controlling Pollination [PDF]

THE PLANT CELL ONLINE, 2004
The successful establishment of angiosperms on land is in part determined by their floral design. Because plants cannot move to find the ideal mate, they have developed a great variety of flowers to provide different mechanisms of pollen release, pollen transfer, and deposition of the pollen ...
Sanchez, AM, Bosch, M.J.M., Bots, M., Nieuwland, J.H., Feron, R., Mariani, C.   +5 more
openaire   +3 more sources

Thiol-based redox regulation in sexual plant reproduction: new insights and perspectives

Frontiers in Plant Science, 2013
The success of sexual reproduction in plants involves (i) the proper formation of the plant gametophytes (pollen and embryo sac) containing the gametes, (ii) the accomplishment of specific interactions between pollen grains and the stigma, which ...
Jose A Traverso, Amada ePulido, Maria Isabel Rodríguez-García, Juan De Dios Alché   +3 more
doaj   +1 more source

Heat Stress Leads to Poor Fruiting Mainly Due to Inferior Pollen Viability and Reduces Shoot Photosystem II Efficiency in “Da Hong” Pitaya

Agronomy, 2022
High summer temperatures (day/night: 40 °C/30 °C) are known to cause poor fruiting, reduced fruit/seed weight, and delayed fruit development in the “Da Hong” red-fleshed pitaya (Hylocereus polyrhizus); however, the mechanisms of these effects are unknown.
Yu-Chun Chu, Jer-Chia Chang
doaj   +1 more source

Molecular cloning and transcriptional activity of a new Petunia calreticulin gene involved in pistil transmitting tract maturation, progamic phase, and double fertilization [PDF]

, 2013
Calreticulin (CRT) is a highly conserved and ubiquitously expressed Ca2+-binding protein in multicellular eukaryotes. As an endoplasmic reticulum-resident protein, CRT plays a key role in many cellular processes including Ca2+ storage and release ...
A Christensen, AJ Crofts, AM Hassan, Anna Suwińska, BA Kwiatkowski, BQ Huang, CM Williams, CN Nardi, CO Lim, DE Nelson, E Gasteiger, E Zuckerkandl, F Chen, H Jin, HJ Li, HJ Li, HQ Tian, J Denecke, J Felsenstein, J Li, JC Huang, JL Went Van, JR Nevins, Justyna Prusińska, K Hsieh, K Tamura, Krzysztof Gumowski, L Navazio, L Thelin, LI Gold, LL Ge, M Iwano, M Lenartowska, M Lenartowska, M Lenartowska, M Michalak, MA Larkin, Marta Lenartowska, MTM Willemse, N Blom, N Borisjuk, N Saitou, P Mariani, P Shaw, Robert Lenartowski, S Persson, S Persson, SF Altschul, SJ Coughlan, T Dresselhaus, T Ishimizu, UK Tirlapur, WA Wang, XL Ye, XY Jia, XY Jia, Y Fu, Y Saijo, YQ An, Z Li   +59 more
core   +2 more sources

A Pectin Methylesterase ZmPme3 Is Expressed in Gametophyte factor1-s (Ga1-s) Silks and Maps to that Locus in Maize (Zea mays L.)

Frontiers in Plant Science, 2017
The ga1 locus of maize confers unilateral cross incompatibility, preventing cross pollination between females carrying the incompatible Ga1-s allele and males not carrying a corresponding compatible allele.
Adrienne N. Moran Lauter, Michael G. Muszynski, Ryan D. Huffman, M. Paul Scott   +3 more
doaj   +1 more source

HD-AGPs as Speciation Genes: Positive Selection on a Proline-Rich Domain in Non-Hybridizing Species of Petunia, Solanum, and Nicotiana

Plants, 2019
Transmitting tissue-specific proteins (TTS proteins) are abundant in the extracellular matrix of Nicotiana pistils, and vital for optimal pollen tube growth and seed set.
Tara D. Callaway, Anu Singh-Cundy
doaj   +1 more source