Results 31 to 40 of about 9,106 (183)

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

Insect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn, Vicky L. Tolmay, Marlon‐Schylor Luke le Roux, Lintle Mohase, Mpho S. Mafa, Vittorio F. Nicolis, Eduard Venter, Nicolaas Francois Visser Burger, Anna‐Maria Botha   +8 more
wiley   +1 more source

Characteristics of dynamic changes of the callose in male sterile anthers of Lycium barbarum L.

Xibei zhiwu xuebao
[Objective] Callose is a beta-1, 3-bonded glucan that forms a wall structure, which occurs only in certain tissues. When degrading prematurely or delayed, it may lead to pollen abortion.
ZHOU Ting, WEI Yaru, SUN Xuran, GUAN Cuiping, LIANG Wenyu, YANG Shujuan   +5 more
doaj   +1 more source

A hypothesis concerning callose [PDF]

Plant Signaling & Behavior, 2018
Background Concept: Certain proteins and the glucose monomer have spacing of their carbonyl oxygen atoms that match the spacing of the oxygen atoms of hexagonal ice. This opens the possibility that a sequence of linked glucose residues may have a sequence of equally spaced carbonyl oxygen atoms.
openaire   +2 more sources

Reactive oxygen species, antioxidants and the regulation of plant development

The FEBS Journal, EarlyView.
The regulation of axillary bud outgrowth by the interplay between phytohormone and redox signals. Axillary bud outgrowth is regulated by cellular energy status and the balance between phytohormones, notably abscisic acid (ABA) and gibberellic acid (GA).
Juwita R. Dewi, Christine H. Foyer, Michael J. Considine   +2 more
wiley   +1 more source

An efficient method for the extraction and the quantitative determination of callose from HLB-affected and healthy citrus

Frontiers in Agronomy
Callose is a 1,3-β glucan responsible for several processes in planta such as cell division, ripening of pollen mother cells, maintaining the plasmodesmata opening, and providing structure to the sieve plates.
Chiara Bernardini, Chiara Bernardini, Alessandro Franco, Riccardo Russo, Riccardo Russo, Taylor Livingston, Frederick G. Gmitter, Amit Levy, Amit Levy, Tripti Vashisth   +9 more
doaj   +1 more source

Callose formation in injured cells of the vegetative and generative thallus of Chara vulgaris L. Absence of callose in the process of cytodifferentiation

Acta Societatis Botanicorum Poloniae, 2014
In an alga Chara vulgaris L. the processes of differentiation of vegetative system cells of the thallus, and initiation and development of generative organs are not associated with callose formation.
Mirosław Godlewski
doaj   +1 more source

H2O2 mediates transcriptome reprogramming during Soybean mosaic virus-induced callose deposition in soybean

Crop Journal, 2022
The main defense response to Soybean mosaic virus (SMV) infection in soybean [Glycine max (L.) Merr.] is thought to be blockage of intercellular virus transport by callose deposition on plasmodesmata. But the specific regulatory mechanism remains largely
Tianjie Sun, Xizhe Sun, Fukuan Li, Nan Ma, Mengxuan Wang, Yan Chen, Na Liu, Yuan Jin, Jie Zhang, Chunyan Hou, Chunyan Yang, Dongmei Wang   +11 more
doaj   +1 more source

Crossed-leg callosities

Acta Dermato-Venereologica, 1985
We report five patients in whom localised callosities were found on the dorsum of the feet. This was bilateral in four cases and was due to repetitive minor trauma associated with the sitting posture adopted by the patients. Three of the patients also had psoriasis vulgaris which was clinically dissimilar to the lesions we describe.
N H, Cox, A Y, Finlay
openaire   +2 more sources

PtoHY5 integrates photoperiodic signals with the ABA pathway to coordinate growth cessation and dormancy in Populus

Journal of Integrative Plant Biology, EarlyView.
In Populus, short days deactivate the growth‐promoting protein PtoHY5, turning off a growth accelerator and activating an abscisic acid‐driven brake. This directly couples growth cessation with dormancy, underscoring the role of abscisic acid in synchronizing these transitions for winter survival.
Hongbin Wei, Junlong Shen, Yongfeng Gao, Yue Xiao, Fan Sun, Miao Fang, Qin Song, Xiang Liu, Yinan Yao, Keming Luo   +9 more
wiley   +1 more source

Distinctive patterns of callose deposition provide an early sign of ovule abortion in the andromonoecious shrubCaesalpinia gilliesi

Boletín de la Sociedad Argentina de Botánica, 2009
Ovule abortion may lead to the partial or complete reduction of the number of functional ovules in the ovary and then is the primary factor that determines the sexual expression of the plant.
A. Calviño, C. Carrizo García
doaj   +1 more source