บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Physiological and stress-induced changes in potato tuber gene expression.

Belknap, W.; Rickey, T.;

The molecular and cellular biology of the potato Year: 1990 Pages: 89-95 Ref: 13 ref.

1990

บทคัดย่อ

Physiological and stress-induced changes in potato tuber gene expression.

The sensitivity of potato tubers to blackspot bruise injury (caused by the biosynthesis of melanin following physical impact during harvesting and postharvest operations) is determined by environmental, physiological and genetic components. A study is described in which the bruise-sensitive cultivar Lemhi was used to characterize biochemical and molecular biological changes induced by bruising. It is concluded: (1) that different forms of physical stress (cutting, bruising, slow heating and ethylene treatment) do not induce identical changes in levels of the transcripts examined (phenylalanine ammonia-lyase, ubiquitin, HSP70 and patatin); and (2) that stress-induced changes in transcripts are not coupled, suggesting that changes in the levels of these transcripts are regulated independently.