Results 71 to 80 of about 75,211 (301)

Contrasting effects of yeasts and bacteria on floral nectar traits [PDF]

Annals of Botany, 2018
Flowers can be highly variable in nectar volume and chemical composition, even within the same plant, but the causes of this variation are not fully understood. One potential cause is nectar-colonizing bacteria and yeasts, but experimental tests isolating their effects on wildflowers are largely lacking.
Vannette, Rachel L, Fukami, Tadashi
openaire   +4 more sources

Chloroplast Stress Signals Orchestrate Epidermis‐Specific Remodeling of Mitochondria and ER Under High Light

Advanced Science, EarlyView.
High light exposure triggers an epidermis‐specific remodeling of mitochondria and ER in Arabidopsis, driven by chloroplast‐derived signals. Live‐cell imaging shows that HL rapidly suppresses mitochondrial motility, followed by fusion‐driven elongation and ER cisternal expansion.
Evan R. Angelos, Hee‐Seung Choi, Jingzhe Guo, Andrea A. Zanini, Tessa M. Burch‐Smith, Emily Snyder, Matthew Part, Wilhelmina van de Ven, Manhoi Hur, Gerd Ulrich Balcke, Alain Tissier, Quanqing Zhang, Katayoon Dehesh   +12 more
wiley   +1 more source

Intraspecific floral colour variation in three Pedicularis species

Plant Diversity
Flower constancy describes the phenomenon that pollinators tend to successively visit flowers of a single species during foraging, reducing reproductive interference in natural communities.
Qiu-Yu Zhang, Zhe Chen, Hang Sun, Yang Niu   +3 more
doaj   +1 more source

Divergent selection on flowering phenology but not on floral morphology between two closely related orchids

Ecology and Evolution, 2020
Closely related species often differ in traits that influence reproductive success, suggesting that divergent selection on such traits contribute to the maintenance of species boundaries. Gymnadenia conopsea ss.
Elodie Chapurlat, Iris Le Roncé, Jon Ågren, Nina Sletvold   +3 more
doaj   +1 more source

Floral adaptation to local pollinator guilds in a terrestrial orchid [PDF]

, 2017
Background and Aims Studies of local floral adaptation in response to geographically divergent pollinators are essential for understanding floral evolution.
Gross, Karin, Schiestl, Florian P., Sun, Mimi   +2 more
core  

Morph‐specific selection on floral traits in a polymorphic plant [PDF]

Journal of Evolutionary Biology, 2010
AbstractCorrelations between phenotypic traits are common in many organisms, but the relative importance of nonadaptive mechanisms and selection for the evolution and maintenance of such correlations are poorly understood. In polymorphic species, morphs may evolve quantitative differences in additional characters as a result of morph‐specific selection.
Didrik, Vanhoenacker, P, Toräng, J, Agren, J, Ehrlén   +3 more
openaire   +2 more sources

Natural Negative Feedback Loops Confer Indica‐Japonica Differentiation for Grain Size Homeostasis in Rice

Advanced Science, EarlyView.
This study reveals the genetic and molecular mechanisms controlling grain size homeostasis through fine‐tuning OsGRX8 self‐expression by two natural negative feedback loops functioning in redox‐dependent or ‐independent manners and identifies two self‐regulatory haplotypes (SRHs) for the subspecies differentiation in rice.
Xingxing Li, Meng‐en Wu, Ziqi Qiao, Junkui Huang, Juncheng Zhang, Yang Ding, Junqing Zhu, Jingyue Xu, Yuxin Huang, Wei Li, Xiaomin Su, Yue Ding, Jianwei Zhang, Yibo Li   +13 more
wiley   +1 more source

Decrease of sexual organ reciprocity between heterostylous primrose species, with possible functional and evolutionary implications [PDF]

, 2017
Background and Aims Heterostyly is a floral polymorphism that has fascinated evolutionary biologists since Darwin's seminal studies on primroses. The main morphological characteristic of heterostyly is the reciprocal placement of anthers and stigmas in ...
Conti, Elena, de Vos, Jurriaan M., Keller, Barbara   +2 more
core  

TOGR3, a Proteasome β4 Subunit, Orchestrates Sugar Homeostasis to Trade Off Growth and Thermotolerance in Rice

Advanced Science, EarlyView.
This study identifies a novel thermoregulatory mechanism in rice: TOGR3 partners with 26S proteasome subunits, including TT1, to drive thermoresponsive ubiquitin–proteasome activity, maintaining sugar homeostasis in stomatal regulation to balance growth and stress resistance.
Biyao Zhang, Xiaoyan Wu, Ting Xu, Feifei Guo, Xiaolu Shen, Cuiping Meng, Yanan Wang, Xue Han, Hong Zhao, Yongbiao Xue   +9 more
wiley   +1 more source

Natural selection on floral traits of Caltha scaposa (Ranunculaceae), an alpine perennial with generalized pollination system from Northwest Yunnan

Plant Diversity, 2017
Floral traits, including those invisible to humans but visible to pollinators, that increase pollination efficiency may be selected by pollinators in plant species with pollen limitation of seed production, but the importance of pollinators as selective ...
Guopeng Zhang, Lihua Meng, Zhikun Wu, Zhiqiang Zhang, Lingjuan Yin, Yongping Yang, Yuanwen Duan   +6 more
doaj   +1 more source