Results 61 to 70 of about 6,669 (206)
Cellular localization of ROS and NO in olive reproductive tissues during flower development
BMC Plant Biology, 2010 Background Recent studies have shown that reactive oxygen species (ROS) and nitric oxide (NO) are involved in the signalling processes taking place during the interactions pollen-pistil in several plants. The olive tree (Olea europaea L.) is an important
Alché Juan +2 more
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Thiol-based redox regulation in sexual plant reproduction: new insights and perspectives [PDF]
, 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 ...
Pulido, Amada +2 more
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THESEUS1 is a component of the receptor complex for establishing polytubey block in Arabidopsis
Journal of Integrative Plant Biology, EarlyView.THESEUS1 (THE1) is a component of the CrRLK1L‐RALF signaling complex specifically responsible for establishing the polytubey block at the Arabidopsis septum. Genetic and biochemical analyses demonstrate that THE1, together with FERONIA, ANJ and HERK1, forms a receptor complex that senses pollen tube‐derived RALF peptides, thereby establishing a barrier
Qiyun Li +5 more
wiley +1 more source
Acta Societatis Botanicorum Poloniae, 2014 In the pistil of Petunia hybrida, the transmitting tract and the ovules are the sites which give Ca2+-CTC fluorescence. In unpollinated pistil the level of membrane-associated Ca2+ decreases from the stigma to the base of the style.
Elżbieta Bednarska
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Incompatible pollen abortion and late-acting self-incompatibility in Schima superba
Scientific Reports, 2022 In angiosperms, self-incompatibility (SI) is a common and widespread mechanism for plant prevention of inbreeding, and late-acting self-incompatibility (LSI) may be ancestral in the group.
Rui Zhang, Hanbo Yang, Zhichun Zhou
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Plants, 2021 Study of reproductive biology and pollination ecology helps in understanding the life history patterns of species. Such a study brings to light the bottlenecks, if any, on account of which the individuals of the species are not able to reproduce in ...
Susheel Verma +6 more
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Transcriptome analysis reveals self-incompatibility in the tea plant (Camellia sinensis) might be under gametophytic control [PDF]
, 2016 BACKGROUND: Self-incompatibility (SI) is under genetic control and prevents inbreeding depression in angiosperms. SI mechanisms are quite complicated and still poorly understood in many plants.
Cheng-Cai Zhang +7 more
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New Phytologist, EarlyView.Summary The Grant‐Stebbins model predicts that a plant species encountering different pollinators across its range may undergo local adaptation and, subsequently, ecological speciation. We tested whether this could explain the origin of Aeschynanthus acuminatus (Gesneriaceae), a species phylogenetically derived from sunbird specialist ancestors.
Jing‐Yi Lu +3 more
wiley +1 more source
Plants, 2021 Compared to other grasses, flowering in bamboo is quite divergent, yet complex with respect to time to flower, number of individual culms in a population that have been induced at a time (sporadic vs.
Sukanya Chakraborty +6 more
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Callose (β-1,3 glucan) is essential for Arabidopsis pollen wall patterning, but not tube growth [PDF]
, 2005 Background: Callose (β-1,3 glucan) separates developing pollen grains, preventing their underlying walls (exine) from fusing. The pollen tubes that transport sperm to female gametes also contain callose, both in their walls as well as in the plugs that ...
Swanson, Rob
core +2 more sources