Relatively little is known about the small subset of peroxisomal proteins with predicted protease activity. Here, we report that the peroxisomal LON2 (At5g47040) protease facilitates matrix protein import into Arabidopsis (Arabidopsis thaliana) peroxisomes. We identified T-DNA insertion alleles disrupted in five of the nine confirmed or predicted peroxisomal proteases and found only two-lon2 an...

The effect of salinity and calcium levels on water flows and on hydraulic parameters of individual cortical cells of excised roots of young maize (Zea mays L. cv Halamish) plants have been measured using the cell pressure probe. Maize seedlings were grown in one-third strength Hoagland solution modified by additions of NaCl and/or extra calcium so that the seedlings received one of four treatme...

Maritime pine (Pinus pinaster Ait.) is a fast-growing species of the western Mediterranean Basin with important ecological (e.g., site restoration), economic wood production), and social recreation) values. Due to global climate change, growing incidence drought wildfires challenges distribution growth maritime pine. Mechanical preparation (SP) either alone or integrated chemical weed control c...

Light regimes vary significantly within small forest openings, rangingfrom full sunlight to total shade, and they may affect the establishment and early growth of oak seedlings. We designed modified shadehouses to simulate the complex light conditions within forest openings and tested the effects of daily photosynthetically active radiation (PAR), time of direct light exposure, and the ratio of...

the present study examined the effects of mycorrhizal fungus glomus sp. on pistachio growth parameters and root-rot disease of pistachio seedlings under greenhouse conditions. the experiment was conducted in factorial arrangement based on completely randomized design with six replications. examined factors included: levels of glomus inoculation (with (m1) and without inoculation (m0) and two le...

today, the production of healthy and high quality seedlings is the main factors of success in growing vegetables such as tomato. hence, in order to investigate the effect of different levels of vermicompost and nitrogen on the growth parameters of tomato seedlings (lycopersicon esculentum mill. cv. rio grande), a factorial experiment was conducted in a randomized complete design with three repl...

Chamaecyparis obtusa is increasing the main reforestation species in warmer southern part of Republic Korea because its resistance to climate warming and economic value for timber. In this study, we investigated growth response 2-0 container seedlings combined artificial shading (full sunlight, 35%, 55%, 75%) fertilization (no fertilization, 0.5 g/L, 1.0 g/L 1.5 2.0 3.0 g/L) treatments. Seedlin...

For tree species adapted to shallow soil environments, rooting strategies that efficiently explore rock fractures are important because soil water depletion occurs frequently. However, two questions: (a) to what extent shallow soil-adapted species rely on exploring rock fractures and (b) what outcomes result from drought stress, have rarely been tested. Therefore, based on the expectation that ...

This study was carried out to investigate the effects of foliar spray of salicylic acid and ascorbic acid on some morpho-physiological traits of Pistacia vera cv. Badami-zarand under drought stress. The experiment was conducted during 2017-2018 in the greenhouse condition, in a factorial randomized complete block design with three replications on pot plants. The soil texture of experim...

The purpose of this paper is to describe the effects of C02 and N treatments on soil pC02, calculated CO2 efflux, root biomass and soil carbon in open-top chambers planted with Pinus ponderosa seedlings. Based upon the literature, it was hypothesized that both elevated CO2 and N would cause increased root biomass which would in turn cause increases in both total soil CO2 efflux and microbial re...