Nec1 mutācijas ietekme uz atvārsnīšu darbības regulāciju miežos

6533b85afe1ef96bd12b9039

RESEARCH PRODUCT

Nec1 mutācijas ietekme uz atvārsnīšu darbības regulāciju miežos

Laura Kunga-jēgere

subject

description

Hipersensitīvās atbilde (HA) ir lokalizēta šūnu nāve tiešā infekcijas vietas tuvumā. Miežu mutantam nec1 ir ciklisko nukleotīdu regulētā jonu kanāla 4 mutācija, kas izraisa nekrotisku fenotipu un HA trūkumu. Izmaiņas HA var izsaukt traucējumus arī citās stresa atbildes reakcijās, piemēram, atvārsnīšu regulācijā. Darba mērķis ir raksturot atvārsnīšu darbību mutantā nec1. Sākotnējos eksperimentos konstatēts, ka nec1 ir izmainīta atvārsnīšu darbība, tādēļ darbā pārbaudīja vairākas hipotēzes, kas izskaidrotu šīs izmaiņas. Pārbaudīta gaismas stresa ietekme, iespējamā fitohormonu, NO un H2O2 loma nec1 atvārsnīšu regulācijā. Konstatēts, ka izmanīta atvārsnīšu darbība skaidrojama ar izmaiņām atbildes reakcijās uz fitohormona auksīna un aktīvām skābekļa formām H2O2 un NO. Būtiska gaismas stresa ietekme uz nec1 atvārsnīšu darbību netika konstatēta.

year	journal	country	edition	language
2009-01-01

https://dspace.lu.lv/dspace/handle/7/26877

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