Results 61 to 70 of about 1,355 (164)

Defense responses of Hevea brasiliensis to elicitors from root rot fungi [PDF]

open access: yes, 1991
L'élicitation de quelques réactions de défense du système racinaire de l'Hévéa (#Hevea brasiliensis) aux attaques du #Rigidoporus lignosus$ a été réalisée en injectant des extraits des parois fongiques dans les racines de jeunes plantes âgées de 1 mois ...
Geiger, Jean-Paul   +5 more
core  

Gene regulatory network analysis of silver birch reveals the ancestral state of secondary cell wall biosynthesis in core eudicots

open access: yesNew Phytologist, Volume 246, Issue 5, Page 2059-2074, June 2025.
Summary The compact genome and lack of recent whole‐genome multiplication (WGM) events make the boreal pioneer tree silver birch (Betula pendula) a promising model for primary and secondary cell wall (PCW and SCW) regulation in forest trees. Here, we constructed regulatory networks through combined co‐expression and promoter motif analysis and carried ...
Maja Ilievska   +11 more
wiley   +1 more source

Morphoanatomical and physicochemical standardization of Casuarina equisetifolia L. stem bark

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2014
Objective: The present work was carried out to perform the morphoanatomical and physicochemical evaluation of Casuarina equisetifolia L. stem bark. Method: The pharmacognostic studies were carried out in terms of organoleptic, macroscopic, microscopic ...
Dinesh Kumar, Ajay Kumar, Om Prakash
doaj   +1 more source

International Biological Flora: Ceratonia siliqua

open access: yesJournal of Ecology, Volume 112, Issue 8, Page 1885-1922, August 2024.
The carob tree (Ceratonia siliqua) has a long traditional history in Mediterranean cultures providing food for humans and domestic animals. Its remarkable tolerance of drought, salt and fire, with an ability to thrive in poor, dry soils, makes it ideal for a warming Mediterranean climate.
Peter A. Thomas   +3 more
wiley   +1 more source

Characterization and comparison of lesions on ornamental sweetpotato 'Blackie', tomato 'Maxifort', interspecific geranium 'Caliente Coral', and bat-faced cuphea 'Tiny Mice'. [PDF]

open access: yes, 2014
Many plant species are prone to physiological disorders in which lesions develop on the leaf tissue. Nomenclature for such lesions has included intumescences, excrescences, neoplasms, galls, genetic tumors, enations, and oedemata.
Boyle, Daniel L.   +3 more
core  

The Importance of Phellogen Cells and their Structural Characteristics in Susceptibility and Resistance to Excoriation in Immature and Mature Potato Tuber (Solanum tuberosum L.) Periderm [PDF]

open access: yesAnnals of Botany, 2001
Potato tuber (Solanum tuberosum L.) periderm maturation is an important physiological process that directly affects the susceptibility and development of resistance to costly excoriation (skinning-type wounds) at harvest. The objectives of this research were to identify the specific types of cells and the cellular changes associated with susceptibility
openaire   +1 more source

Vascular cambium stem cells: past, present and future

open access: yesNew Phytologist, Volume 243, Issue 3, Page 851-865, August 2024.
Summary Secondary xylem and phloem originate from a lateral meristem called the vascular cambium that consists of one to several layers of meristematic cells. Recent lineage tracing studies have shown that only one of the cambial cells in each radial cell file functions as the stem cell, capable of producing both secondary xylem and phloem.
Brecht Wybouw   +2 more
wiley   +1 more source

Drought increases Norway spruce susceptibility to the Eurasian spruce bark beetle and its associated fungi

open access: yesNew Phytologist, Volume 242, Issue 3, Page 1000-1017, May 2024.
Summary Drought affects the complex interactions between Norway spruce, the bark beetle Ips typographus and associated microorganisms. We investigated the interplay of tree water status, defense and carbohydrate reserves with the incidence of bark beetle attack and infection of associated fungi in mature spruce trees.
Sigrid Netherer   +10 more
wiley   +1 more source

Bark structure is coordinated with xylem hydraulic properties in branches of five Cupressaceae species

open access: yesPlant, Cell &Environment, Volume 47, Issue 5, Page 1439-1451, May 2024.
Abstract The properties of bark and xylem contribute to tree growth and survival under drought and other types of stress conditions. However, little is known about the functional coordination of the xylem and bark despite the influence of selection on both structures in response to drought.
Radek Jupa   +2 more
wiley   +1 more source

Oak leaf galls: Neuroterus numismalis and Cynips quercusfolii, their structure and ultrastructure

open access: yesActa Societatis Botanicorum Poloniae, 2017
Anatomy and surface ultrastructure of the galls induced on oak leaves by the insects – Neuroterus numismalis (Ol.) and Cynips (Diplolepis) quercusfolii L. – were investigated using a scanning electron microscope (SEM) and a light microscope (LM).
Leszek Stanisław Jankiewicz   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy