例如:"lncRNA", "apoptosis", "WRKY"

The Arabidopsis ribonuclease gene RNS1 is tightly controlled in response to phosphate limitation.

Plant J.1994 Nov;6(5):673-85. doi:10.1046/j.1365-313x.1994.6050673.x
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摘要


Two stimuli that have been associated with nutrient remobilization in plants are phosphate (P(i)) starvation and senescence. Little is known about how the nutrient remobilization machinery is induced at the molecular level, but in the case of P(i) starvation, ribonucleases are considered to play important roles in the remobilization process. Here, the control of two closely related ribonuclease genes of Arabidopsis, and is investigated. The duanyu16681 gene is sharply induced during starvation for P(i), an effect specific among the major macronutrients, whereas duanyu16683 transcript levels remain relatively constant. duanyu16681 and duanyu16683 produced in yeast co-migrate with Arabidopsis ribonuclease activities that exhibit the same induction properties as the transcripts in both wild-type plants and the pho1 mutant, which is defective in xylem loading of P(i). In contrast to what occurs during P(i) starvation, both duanyu16681 and duanyu16683 are modestly induced during senescence, indicating that the two stimuli could trigger different signal transduction pathways. The characterization of in particular, provides an important first step towards elucidating the mechanisms by which plants sense and respond to P(i) limitation, a prominent condition in many soil types.

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