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Host resistance responses against Puccinia striiformis f. sp. tritici in wheat cultivars with different resistance levels: molecular, biochemical, and ultrastructural studies.
BMC Plant Biol
November 2024
Wheat Diseases Research Department, Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt.
Background: Yellow (stripe) rust of wheat, caused by Puccinia striiformis, is a serious disease that results in great economic losses. This study aimed to investigate the variation in plant responses in three wheat cultivars with different resistance levels against yellow rust.
Results: The highest disease severity was recorded for cv.
Effects of Flubeneteram on Inhibiting the Development of f. sp. in Wheat Leaves.
J Agric Food Chem
April 2023
State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A & F University, Yangling 712100, P. R. China.
Stripe rust caused by f. sp. () is a serious threat to wheat production, and the application of fungicides is one of the most important means for controlling the disease.
View Article and Find Full Text PDFEffect of flutianil on the morphology and gene expression of powdery mildew.
J Pestic Sci
May 2021
Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan.
Flutianil, a fungicide effective only on powdery mildew, was previously reported to affect the host cell's haustorial formation and nutrient absorption. Studies were conducted to investigate flutianil's primary site of action on morphology using transmission electron microscope (TEM) observation and RNA sequencing (RAN-seq) techniques. TEM observation revealed that flutianil caused the extra-haustorial matrix and fungal cell wall to be obscured, without remarkable changes of other fungal organelles.
View Article and Find Full Text PDFThree-dimensional reconstructions of haustoria in two parasitic plant species in the Orobanchaceae.
Plant Physiol
April 2021
Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara, 630-0192, Japan.
Article Synopsis
- Parasitic plants like Striga hermonthica and Phtheirospermum japonicum infect other plants using specialized structures called haustoria, which contain different types of cells that play roles in parasitism.
- This study presents a 3-D reconstruction of haustoria from these two species, highlighting their complex internal structures and how they interact with host plants like rice and Arabidopsis.
- Key findings include differences in the cellular organization of haustoria, especially at the connection points to the host's xylem, which are crucial for further understanding how these parasitic plants function.
Glycerol-3-phosphate acyltransferase 6 controls filamentous pathogen interactions and cell wall properties of the tomato and Nicotiana benthamiana leaf epidermis.
New Phytol
August 2019
Sainsbury Laboratory (SLCU), University of Cambridge, Cambridge, UK.
The leaf outer epidermal cell wall acts as a barrier against pathogen attack and desiccation, and as such is covered by a cuticle, composed of waxes and the polymer cutin. Cutin monomers are formed by the transfer of fatty acids to glycerol by glycerol-3-phosphate acyltransferases, which facilitate their transport to the surface. The extent to which cutin monomers affect leaf cell wall architecture and barrier properties is not known.
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