Results 211 to 220 of about 19,004 (254)

Diversifying floral organ identity

Current Opinion in Plant Biology
A fascinating component of floral morphological diversity is the evolution of novel floral organ identities. Perhaps the best-understood example of this is the evolutionary sterilization of stamens to yield staminodes, which have evolved independently numerous times across angiosperms and display a considerable range of morphologies.
Andrea D. Appleton, Elena M. Kramer
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Genetic basis for innovations in floral organ identity

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 2005
AbstractOf the many innovations associated with the radiation of the angiosperms, the evolution of a petal identity program is among the best understood from a genetic standpoint. Although the existing data do indicate that similar genetic mechanisms control petal development across diverse taxa, there is also considerable evidence for variability in ...
Kramer, Elena, Jaramillo, M. Alejandra
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Quantitative live imaging of floral organ initiation and floral meristem termination in Aquilegia

Development, 2022
ABSTRACT In-depth investigation of any developmental process in plants requires knowledge of both the underpinning molecular networks and how they directly determine patterns of cell division and expansion over time. Floral meristems (FMs) produce floral organs, after which they undergo floral meristem termination (FMT); precise control ...
Ya Min, Stephanie J. Conway, Elena M. Kramer   +2 more
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The Birth and Death of Floral Organs in Cereal Crops

Annual Review of Plant Biology
Florets of cereal crops are the basic reproductive organs that produce grains for food or feed. The birth of a floret progresses through meristem initiation and floral organ identity specification and maintenance. During these processes, both endogenous and external cues can trigger a premature floral organ death, leading to reproductive failure ...
Thorsten Schnurbusch, Yongyu Huang
exaly   +3 more sources

Floral Structure and Organization in Platanaceae

International Journal of Plant Sciences, 2009
Developing and mature inflorescences and flowers of several representatives of Platanus were studied to clarify various aspects of floral structure and organization. Special attention was given to perianth differentiation. Extant Platanaceae are monoecious with unisexual flowers aggregated into compact, spherical inflorescence heads.
von Balthazar-Schönenberger, Anna Maria Louise, Schönenberger, Jürg   +1 more
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Molecular Studies on the Differentiation of Floral Organs

Annual Review of Plant Physiology and Plant Molecular Biology, 1991
INTRODUCTION . . . . . . . . . _ . . . _ . . . . . . . . . . . . . . . _ . . . _ _ . . . . . . . . . . . . . . . _ . , . _ . . . . . . . . . . . . _ . . . _ . . . . . . . . . . . . Floral Initiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Development of the Floral Organs

2007
AbstractIt is becoming clear that flower development is a cascade, with flowering time integrators activating floral meristem identity genes which activate floral organ identity genes. The floral organ identity genes themselves encode transcription factors, and are predicted to activate the many structural genes required to form the new organs, as well
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Patterns and Polarity in Floral Meristem and Floral Organ Initiation

Critical Reviews in Plant Sciences, 2014
The initial event in plant floral organogenesis is bract specification, followed by floral meristem (FM) initiation in bract axils, but initiation signals and the interplay between both lateral organs remain unelucidated. Floral organs are initiated on the flanks of the outgrowing FM and the enormous diversity in floral morphology throughout the plant ...
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Characterization and Identification of a Novel Mutant fon(t) on Floral Organ Number and Floral Organ Identity in Rice

Journal of Genetics and Genomics, 2007
The floral-organ-number mutant fon(t) was firstly discovered in the progeny of a cross between a diploid (Chunjiang 683) and a haploid (SARIV-620-A) rice cultivar. The fon(t) mutant showed normal vegetative development and produced normal inflorescence structures.
Yun, Li, Peizhou, Xu, Hongyu, Zhang, Hai, Peng, Quanfang, Zhang, Xudong, Wang, Xianjun, Wu   +6 more
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Floral Organ Initiation and Development

2009
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Bemer, M., Angenent, G.C.
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