Journal of Plant Biology
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Stable Plastid Transformation in Nicotiana benthamiana
Journal of Plant Biology - Tập 52 - Trang 244-250 - 2009
Plastids from Nicotiana benthamiana were transformed with the vector for dicistronic expression of two genes—aminoglycoside 3'-adenyltransferase (aadA) and green fluorescent protein (gfp)—in the plastids of Nicotiana tabacum. Transplastomic shoots exhibited green fluorescence under UV light. Transformation efficiencies were similar between species. Although the border sequence (trnI and trnA) for ......
Transgenic Rice Overexperessing a Tomato Mitochondrial Phosphate Transporter, SlMPT3;1, Promotes Phosphate Uptake and Increases Grain Yield
Journal of Plant Biology - Tập 61 - Trang 383-400 - 2018
Mitochondrial phosphate transporter plays an important regulatory role in promoting the uptake and transport of phosphate in plants. In this study, the SlMPT3;1 gene, a member of mitochondrial phosphate transporter family in tomato, was isolated and transformed into the rice Oryza sativa L. ssp. japonica cultivar Kitaake. The SlMPT3;1 is localized to the mitochondrial membrane and functions in com......
ROS-Mediated ABA Signaling
Journal of Plant Biology - Tập 52 - Trang 102-113 - 2009
In plants, reactive oxygen species (ROS) are short-lived molecules produced through various cellular mechanisms in response to biotic and abiotic stimuli. ROS function as second messengers for hormone signaling, development, oxygen deprivation, programmed cell death, and plant–pathogen interactions. Recent research on ROS-mediated responses has produced stimulating findings such as the specific so......
Cell type identity inArabidopsis roots is altered by both ascorbic acid-induced changes in the redox environment and the resultant endogenous auxin response
Journal of Plant Biology - Tập 50 - Trang 484-489 - 2007
Redox plays a critical role in controlling many cellular processes of plant growth and development. To understand the effect of changes in redox on cell-type determination in the root meristem, we examined the influence of a strong reducing agent -ascorbic acid (AA) - on both the expression patterns of several cell type-specific promoters and the endogenous auxin sensitivity of auxin-responsive DR......
Sequence Variation and Comparison of the 5S rRNA Sequences in Allium Species and their Chromosomal Distribution in Four Allium Species
Journal of Plant Biology - Tập 55 - Trang 15-25 - 2011
The gene structure and sequence diversity of 5S rRNA genes were analyzed in 13 Allium species. While the lengths and sequences of the coding gene segments were conserved, the spacers were highly variable and could be characterized as either short (213–404 bp) or long (384–486 bp) spacers. The short spacers were further classified into five subtypes (SS-I to SS-V) and the long spacers into four sub......
Phosphorus use efficiency in anthocyanin-free tomato (Lycopersicon esculentum Mill.)
Journal of Plant Biology - Tập 41 - Trang 86-92 - 1998
An anthocyanin-free tomato plant, H957, and its parental wild type, H883, were hydroponically grown to test for tolerance to a low phosphorus (P) in H957. The tolerance was evaluated by comparing growth and metabolism of H957 vs. H883 at different P concentrations ranging 25–400 μM. Fresh weights were measured weekly. Dry weight, mineral contents, photosynthetic rate, and P utilization ratios of t......
Reactive oxygen species mediate IAA-lnduced ethylene production in mungbean (Vigna radiata L.) hypocotyls
Journal of Plant Biology - Tập 50 - Trang 18-23 - 2007
We reported previously that ROS may function as a downstream component for signaling auxin, a hormone that induces the ethylene production. Here we demonstrated that ROS can act upstream to promote auxin-induced ethylene production in mungbean hypocotyls. When plants were treated with AVG, ethyiene biosynthetic inhibitor, or ACC, ethylene precursor, we found that little effect on the ROS generatio......
Ultrastructural changes of cell organelles inArabidopsis stems after gamma irradation
Journal of Plant Biology - Tập 48 - Trang 195-200 - 2005
We examined ultrastructural changes of the cell organelles ofArabidopsis stems in response to gamma irradiation. Seedlings treated with 0 to 5 Gy developed normally, while height growth in plants exposed to 50 Gy was significantly inhibited. Based on TEM observations, the chloroplasts were extremely sensitive to such irradiation. In particular, the thylakoids were heavily swollen, some portions of......
Physical and physiological dormancy in black henbane (Hyoscyamus niger L.) seeds
Journal of Plant Biology - - 2004
Ultrastructural Characteristics of Three Chenopod Halophytes Lacking Salt Excretion Structures
Journal of Plant Biology - Tập 53 - Trang 314-320 - 2010
Plants maintained in high soil salinity generally develop particular structures to either tolerate or survive such adverse environments. Excretion of excess ions by special salt glands or other similar structures is a well-known phenomenon for regulating the mineral content of many halophytes. However, the three chenopod halophytes of Suaeda inhabit high saline soils, yet they exhibit no signs of ......
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