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Silencing of expression in tomato plants leads to a dwarfed phenotype, reduced pollen vitality and reduces pollen germination rate. Male sterility of flowers, together with a dwarfed growth behavior is reminiscent to brassinosteroid defective mutant plants. Therefore we aimed to rescue the silencing phenotype by local brassinosteroid application. The phenotypical effects of down-regulation could partially be rescued by epi-brassinolide treatment suggesting that SlSUT2 interconnects sucrose partitioning with brassinosteroid signaling. We previously showed that silenced plants show increased mycorrhization and, this effect was explained by a putative sucrose retrieval function of SlSUT2 at the periarbuscular membrane. More recently, we reported that the symbiotic interaction between Solanaceous hosts and AM fungi is directly affected by watering the roots with epi-brassinolide. Here we show that the effects on mycorrhiza are not only based on the putative sucrose retrieval function of SlSUT2 at the periarbuscular membrane. Our analyses argue that brassinosteroids as well as SlSUT2 can impact the arbuscular morphology/architecture and thereby affect the efficiency of nutrient exchange between both symbionts and the mycorrhizal growth benefit for the plant.
This article was published in the following journal.
Name: Plant signaling & behavior
Most land plants can form symbiosis with arbuscular mycorrhizal (AM) fungi to enhance uptake of mineral nutrients, particularly phosphate (Pi) and nitrogen (N), from the soil. It is established that t...
Dual-mycorrhizal plants are capable of associating with fungi that form characteristic arbuscular mycorrhizal (AM) and ectomycorrhizal (EM) structures. Here we address the following questions: i) how ...
Arbuscular mycorrhizas absorb water from soil to host plants, while the relationship between mycorrhizas and aquaporins (AQPs, membrane water channel proteins, which function in water transport) in my...
Symbiotic association of plants with arbuscular mycorrhizal (AM) fungi brings about changes in levels of the phytohormone jasmonate (JA) in root and shoot tissues of a plant. The enhanced JA levels no...
RNA silencing is a sequence-specific suppression of gene expression conserved in eukaryotes including fungi, plants, and animals. Based on this mechanism, crop improvements have been made to confer pa...
This clinical trial aims to test the effects of consuming two types of tomato (one ordinary cherry red tomato containing lycopene, and the other a yellow cherry tomato low in lycopene), on...
The primary objective of this study is to determine if tomato-soy juice can reduce inflammation, which is linked to prostate cancer, in obese males.
To investigate the effect of added sugar to bake beans on glycemic and insulinemic response.
The purpose of this research study is to test whether certain compounds in tomatoes will help reduce factors in the subject's blood associated with disease risk. The investigators want to ...
RATIONALE: Tomato-soy juice may slow the growth of tumor cells. Studying samples of blood and tissue from patients with prostate cancer in the laboratory may help doctors identify biomarke...
Sucrose present in the diet. It is added to food and drinks as a sweetener.
An alkaloid that occurs in the extract of leaves of wild tomato plants. It has been found to inhibit the growth of various fungi and bacteria. It is used as a precipitating agent for steroids. (From The Merck Index, 11th ed)
A glycoside hydrolase found primarily in PLANTS and YEASTS. It has specificity for beta-D-fructofuranosides such as SUCROSE.
A nonreducing disaccharide composed of GLUCOSE and FRUCTOSE linked via their anomeric carbons. It is obtained commercially from SUGARCANE, sugar beet (BETA VULGARIS), and other plants and used extensively as a food and a sweetener.
A liverwort plant genus of the family Marchantiaceae, order Marchantiales, subclass MARCHANTIAE. Members contain brassinosteroids and DITERPENES.