Results 91 to 100 of about 28,456 (255)

Phase measurement of a segmented wave front using PISton and TILt interferometry (PISTIL).

Optics Express, 2018
New architectures for telescopes or powerful lasers require segmented wave front metrology. This paper deals with a new interferometric wave front sensing technique called PISTIL (PISton and TILt), able to recover both piston and tilts of segment beams ...
M. Deprez, B. Wattellier, C. Bellanger, L. Lombard, J. Primot   +4 more
semanticscholar   +1 more source

Hybridity of mainly asexually propagating duckweeds in genus Lemna – dead end or breakthrough?

New Phytologist, EarlyView.
Summary The cosmopolitan, mainly vegetatively propagating, organ‐reduced monocotyledonous aquatic duckweeds are the smallest and fastest growing angiosperms, distributed world‐wide and flower rarely in nature. Recently, we reported intra‐ and interspecific hybrids and ploidy variants in the genus Lemna.
Yuri Lee, Luca Braglia, Anton Stepanenko, Jörg Fuchs, Veit Schubert, Silvia Gianì, Leone Ermes Romano, Giovanna Aronne, Chiara Forti, Ingo Schubert, Laura Morello   +10 more
wiley   +1 more source

Variation and evolutionary transformation of some characters of the pollinarium and pistil in Epidendroideae (Orchidaceae)

Plant Systematics and Evolution, 2019
We studied the variation in the pollinarium and pistil of Epidendroideae and reconstructed the ancestral states of the characters (pollinia number, pollinium orientation, pollinium with suture, and pollinium texture).
Hilda R. Mosquera-Mosquera, R. Valencia-Barrera, C. Acedo   +2 more
semanticscholar   +1 more source

Testing macroevolutionary predictions of the Grant‐Stebbins model in the origin of Aeschynanthus acuminatus

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, Yao‐Wu Xing, Hong Truong Luu, Richard H. Ree   +3 more
wiley   +1 more source

From recognition to response: integrated signaling pathways determining pollen acceptance and rejection in Brassicaceae

New Phytologist, EarlyView.
Summary Generation of competent offspring is vital for the prosperity of flowering plants. The pistil not only functions as a conduit for pollen tubes to grow to the ovary but also provides a selective venue for facilitating the growth of compatible pollen tubes and discouraging invaders and incompatible pollen.
Tong Zhang, Shuyan Li, Shengwei Dou, Qiaohong Duan   +3 more
wiley   +1 more source

High-density genetic map construction and mapping of the homologous transformation sterility gene (hts) in wheat using GBS markers

BMC Plant Biology, 2018
Background Homologous transformation sterility-1 (HTS-1) is a novel wheat mutant that exhibits pistillody, the transformation of stamens into pistils or pistil-like structures.
Qian Yang, Zaijun Yang, Haifeng Tang, Yan Yu, Zhenyong Chen, Shuhong Wei, Qinxu Sun, Zhengsong Peng   +7 more
doaj   +1 more source

In perennial Arabis alpina, CONSTANS and FLOWERING LOCUS T have common and distinct effects on flowering and inflorescence architecture

New Phytologist, EarlyView.
Summary Flowering of perennial Arabis alpina is differentially regulated on primary and axillary shoots. Although contributions of vernalization and ageing pathways have been analysed, those of photoperiodic flowering genes CONSTANS (CO), FLOWERING LOCUS T (FT), and TWIN‐SISTER OF FT (TSF) remain unexplored.
Niharika Sashidhar, George Coupland
wiley   +1 more source

Pistil Development [PDF]

The Plant Cell, 1993
C. S., Gasser, K., Robinson-Beers
openaire   +2 more sources

Pollen-pistil interactions: It takes two to tangle but a molecular cast of many to deliver.

Current opinion in plant biology, 2022
A. Cheung, Qiaohong Duan, Chao Li, Ming-Che James Liu, Hen-Ming Wu   +4 more
semanticscholar   +1 more source

MsWRKY49 Modulates Pollen Tube Elongation in Response to Boron Deficiency by Regulating Reactive Oxygen Species Homeostasis in Alfalfa

Plant Biotechnology Journal, EarlyView.
ABSTRACT Boron, an essential micronutrient, plays a crucial role in plant reproductive processes. Boron deficiency is widespread in many regions and significantly reduces alfalfa (Medicago sativa) seed yield, yet the molecular mechanisms underlying its impact on reproductive organ development remain elusive.
Juan Wang, Wenxin Peng, Zhicheng Jia, Xinru Su, Tianqi Zhu, Zhenzhen Liu, Shoujiang Sun, Jinyu Shi, Manli Li, Liru Dou, Peisheng Mao   +10 more
wiley   +1 more source