Results 51 to 60 of about 9,106 (183)

The impact of seasonal variations in inner bark width and xylem growth on irreversible annual stem diameter measurements

Plant Biology, EarlyView.
The seasonal variation in inner bark width differed from that of xylem growth, indicating that xylem phenology cannot be reliably assessed without cellular observations. Abstract To better interpret continuous xylem growth measurements from dendrometers, we evaluated how the widths of developing xylem and phloem, along with seasonal trends in inner ...
J. Gričar, K. Eler
wiley   +1 more source

An Arabidopsis Callose Synthase, GSL5, Is Required for Wound and Papillary Callose Formation [PDF]

The Plant Cell, 2003
Arabidopsis was transformed with double-stranded RNA interference (dsRNAi) constructs designed to silence three putative callose synthase genes: GLUCAN SYNTHASE-LIKE5 (GSL5), GSL6, and GSL11. Both wound callose and papillary callose were absent in lines transformed with GSL5 dsRNAi and in a corresponding sequence-indexed GSL5 T-DNA insertion line but ...
Jacobs, A., Lipka, V., Burton, R., Panstruga, R., Strizhov, N., Schulze-Lefert, P., Fincher, G.   +6 more
openaire   +4 more sources

Aphid Resistance in Pulse Crops: Sources, Mechanisms, Genetics and Breeding

Legume Science, Volume 8, Issue 4, December 2026.
ABSTRACT Aphids are major pests of pulse crops, causing damage through phloem sap feeding and virus transmission. In this context, resistant varieties are central components of sustainable aphid management. This review synthesizes current knowledge on resistance sources, phenotyping strategies, resistance mechanisms, genetic control and breeding ...
Francisco A. Mendes, Susana T. Leitão, Diego Rubiales, Maria Carlota Vaz Patto   +3 more
wiley   +1 more source

Tracking Sodium Inside the Plant: Hydraulic Adjustments to Deal With Salinity

Journal of Agronomy and Crop Science, Volume 212, Issue 6, November 2026.
ABSTRACT Sorghum is a crop that has become more relevant in recent years due to its uses and properties (biofuel, gluten‐free flour) as well as its versatility to grow in unfavourable environmental conditions. Salinity is one of the main abiotic stresses affecting crop production and yield worldwide.
Moira R. Sutka, Pablo D. Cáceres, Marina Recchi, Andrea S. Dengis, Milena E. Manzur   +4 more
wiley   +1 more source

Plasmodesmata Function and Callose Deposition in Plant Disease Defense

Plants
Callose, found in the cell walls of higher plants such as β-1,3-glucan with β-1,6 branches, is pivotal for both plant development and responses to biotic and abiotic stressors.
Jingsheng Chen, Xiaofeng Xu, Wei Liu, Ziyang Feng, Quan Chen, You Zhou, Miao Sun, Liping Gan, Tiange Zhou, Yuanhu Xuan   +9 more
doaj   +1 more source

New insight into silica deposition in horsetail (Equisetum arvense)

BMC Plant Biology, 2011
Background The horsetails (Equisetum sp) are known biosilicifiers though the mechanism underlying silica deposition in these plants remains largely unknown.
Exley Christopher, Law Chinnoi
doaj   +1 more source

Novel Amino Acid Changes Increase Phosphoenolpyruvate Carboxylase Output in planta

Plant, Cell &Environment, Volume 49, Issue 11, Page 8306-8321, November 2026.
ABSTRACT Characterization of previously reported Arabidopsis mutants with increased aluminum (Al) resistance (alr) resulting from greater release of Al‐chelating malate identified three unique amino acid substitutions that each impacts PHOSPHOENOLPYRUVATE CARBOXYLASE 1, a key anaplerotic carbon fixation enzyme.
Jinrui Sheng, Kevin Frausto, Sarah Haesaerts, Taylor J. Meyer, Maruša Prolič‐Kalinšek, Seán E. O'Leary, Remy Loris, Paul B. Larsen   +7 more
wiley   +1 more source

Tripartite Interaction Between Penicillium pinophilum‐Host Plants and CMV‐Y: A Model for Endophyte‐Mediated Viral Biocontrol

Plant, Cell &Environment, Volume 49, Issue 11, Page 8521-8539, November 2026.
ABSTRACT Plant‐fungus‐virus tripartite interactions represent complex ecological systems in which mutualistic endophytes can influence host physiology, yet the molecular basis of endophyte‐mediated defence remains poorly understood. Here, we demonstrate that the endophytic fungus Penicillium pinophilum EU0013 suppresses the yellow strain of cucumber ...
Sarah R. Ibiang, Ivan Galis, Hideki Kondo, Nobuhiro Suzuki   +3 more
wiley   +1 more source

Harnessing Natural Diversity and Rational Design for Enhanced Plant Immunity

Plant, Cell &Environment, Volume 49, Issue 11, Page 8643-8656, November 2026.
ABSTRACT Plant pathogens cause crop loss. Genetic resistance, through natural genetic diversity or engineered resistance, can be highly effective in protecting plants from infection. Genetic resistance from wild relatives of crops has been successfully introduced into crops to control pathogen infection.
Nathan Diplock, Jennifer D. Lewis
wiley   +1 more source

The effect of intracellular calcium level regulators on the synthesis of pollen tube callose in Oenothera biennis L.

Acta Societatis Botanicorum Poloniae, 2014
It is shown that callose synthesis in the Oenothera biennis pollen tube is regulated by the endogenous Ca2+ level. Calcium antagonists reduced the amount of callose in the wall above the tip of the pollen tube (Verapamil - calcium channels blocker) and ...
Elżbieta Bednarska
doaj   +1 more source