Results 61 to 70 of about 731 (213)

Spermine Regulates Pollen Tube Growth by Modulating Ca2+-Dependent Actin Organization and Cell Wall Structure

Frontiers in Plant Science, 2017
Proper growth of the pollen tube depends on an elaborate mechanism that integrates several molecular and cytological sub-processes and ensures a cell shape adapted to the transport of gametes.
Iris Aloisi, Giampiero Cai, Claudia Faleri, Lorella Navazio, Donatella Serafini-Fracassini, Stefano Del Duca   +5 more
doaj   +1 more source

The shared benefits of fallen fruits: A novel mechanism stabilizing a nursery pollination mutualism between Sambucus and kateretid beetles

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima, Hidehito Okada, Sadatomo Hisamatsu, Kenji Suetsugu   +3 more
wiley   +1 more source

Combined cytological and transcriptomic analysis reveals a nitric oxide signaling pathway involved in cold-inhibited Camellia sinensis pollen tube growth

Frontiers in Plant Science, 2016
Nitric oxide (NO) as a signaling molecule plays crucial roles in many abiotic stresses in plant development processes, including pollen tube growth. Here, the signaling networks dominated by NO during cold stress that inhibited Camellia sinensis pollen ...
Weidong eWang, Xianyong eSheng, Zaifa eShu, Dongqin eLi, Junting ePan, Xiaoli eYe, Pinpin eChang, Xinghui eLi, Yuhua eWang   +8 more
doaj   +1 more source

Persistent directional growth capability in Arabidopsis thaliana pollen tubes after nuclear elimination from the apex

Nature Communications, 2021
Arabidopsis pollen contains a vegetative nucleus and two sperm cells that move to the apical region during pollen tube growth. Here, Motomura et al. make use of transgenic pollen with immobilized nuclei and show that, contrary to previous assumptions ...
Kazuki Motomura, Hidenori Takeuchi, Michitaka Notaguchi, Haruna Tsuchi, Atsushi Takeda, Tetsu Kinoshita, Tetsuya Higashiyama, Daisuke Maruyama   +7 more
doaj   +1 more source

The pistil as a traffic light: Yellow‐to‐red color change likely influences pollinator visitation patterns in Saxifraga fortunei (Saxifragaceae)

PLANTS, PEOPLE, PLANET, EarlyView.
Flowers can communicate reproductive status to pollinators through visual cues. In Saxifraga fortunei, pistils often changed from yellow to red after pollination, and hoverflies and honeybees preferentially visited flowers with yellow pistils. This pattern suggests that a post‐pollination color shift confined to the pistil can reduce revisits to ...
Kazuma Takizawa, Masayasu Furukawa, Kenji Suetsugu   +2 more
wiley   +1 more source

Multifaceted obscurity of Thismia abei (Thismiaceae): A fairy lantern with the protologue long disregarded in practice

PLANTS, PEOPLE, PLANET, EarlyView.
Tiny, leafless fairy lanterns are easily overlooked on the forest floor. Thismia abei, endemic to Japan, persists in small, unstable populations and is listed nationally as Critically Endangered. Our recent work has revealed another, less obvious form of obscurity.
Kenji Suetsugu, Alexander N. Sennikov, Maxim S. Nuraliev   +2 more
wiley   +1 more source

Multiple barriers maintain species boundaries in sympatric brood‐site deceptive Gastrodia orchids

PLANTS, PEOPLE, PLANET, EarlyView.
Societal Impact Statement Gastrodia orchids are inconspicuous forest plants that lack chlorophyll and obtain carbon from fungi. Their dull‐colored, ground‐level flowers are often hidden among leaf litter, yet they rely on small flies for pollination.
Kenji Suetsugu, Akihiro Nishimura, Shun K. Hirota, Masahito T. Kimura   +3 more
wiley   +1 more source

2, 6-Dichlorobenzonitrile causes multiple effects on pollen tube growth beyond altering cellulose synthesis in Pinus bungeana Zucc. [PDF]

PLoS ONE, 2013
Cellulose is an important component of cell wall, yet its location and function in pollen tubes remain speculative. In this paper, we studied the role of cellulose synthesis in pollen tube elongation in Pinus bungeana Zucc.
Huaiqing Hao, Tong Chen, Lusheng Fan, Ruili Li, Xiaohua Wang   +4 more
doaj   +1 more source

VANGUARD1: At the Forefront of Pollen Tube Growth

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +2 more sources

Signalling pathways in pollen germination and tube growth [PDF]

Protoplasma, 2006
Signalling is an integral component in the establishment and maintenance of cellular identity. In plants, tip-growing cells represent an ideal system to investigate signal transduction mechanisms, and among these, pollen tubes (PTs) are one of the favourite models. Many signalling pathways have been identified during germination and tip growth, namely,
Malhó, R., Liu, Q., Monteiro, D., Rato, C., Camacho, L., Dinis, A.   +5 more
openaire   +3 more sources