Phloem-specific expression of a melon Aux/IAA in tomato plants alters auxin sensitivity and plant development
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چکیده
منابع مشابه
Phloem-specific expression of a melon Aux/IAA in tomato plants alters auxin sensitivity and plant development
Phloem sap contains a large repertoire of macromolecules in addition to sugars, amino acids, growth substances and ions. The transcription profile of melon phloem sap contains over 1000 mRNA molecules, most of them associated with signal transduction, transcriptional control, and stress and defense responses. Heterografting experiments have established the long-distance trafficking of numerous ...
متن کاملCharacterization of phloem-sap transcription profile in melon plants.
The phloem's role as a tissue responsible for the distribution of photoassimilates and nutrients among the various organs of higher plants has long been recognized. Recent studies have established that numerous proteins and mRNA molecules are also present in the phloem translocation stream; however, limited information is available on the identity of transcripts present within the phloem sap. I...
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Concentration gradients of the hormone auxin are associated with various patterning events in plants. Recent work has refined our picture of the complex and dynamic system of auxin transport underlying the formation of these gradients.
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We have isolated four genomic DNA clones that contain the transcription initiation site of the parA gene(s) from a tobacco genomic library by hybridization with the 5' segment of the parA cDNA previously isolated. They were classified into two types on the basis of their nucleotide sequences. Southern blot analysis indicated that two types of clones were respectively derived from the two parent...
متن کاملFunction of Cyclophilin1 as a long-distance signal molecule in the phloem of tomato plants
Tomato (Solanum lycopersicum) diageotropica (dgt) mutants, containing a single mutation in the Cyclophilin1 (SlCyp1) gene, are auxin-insensitive, exhibiting a pleiotropic phenotype including lack of geotropism, abnormal xylem structure, lack of lateral roots (LRs), and elevated shoot-to-root ratio. SlCyp1 is a putative peptidyl-prolyl isomerase that can traffic from shoot to root, where it indu...
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ژورنال
عنوان ژورنال: Frontiers in Plant Science
سال: 2013
ISSN: 1664-462X
DOI: 10.3389/fpls.2013.00329