Ob txoj kev nroj tsuag tiv thaiv lawv tus kheej li cas?

2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17

Peb tau sib sau ua ke qee qhov txawv tshaj plaws thiab feem ntau cov tswv yim zoo tshaj plaws uas cov nroj tsuag siv tiv thaiv lawv tus kheej

1. Lawv ua si tuag.
2. Lawv sting.
3. Lawv tso venom.
4. Lawv tsim kev koom tes nrog cov ntsaum.
5. Lawv ceeb toom ib leeg thaum muaj xwm txheej nyob ze.
6. Lawv taw qhia rau noog kom noj hem kab.
7. Lawv choke lawv predators.

Tsis tas li ntawd, cov nroj tsuag tiv thaiv lawv tus kheej li cas los ntawm kev noj?

Nroj tsuag tau evolved ib tug loj array ntawm mechanical thiab tshuaj tiv thaiv tiv thaiv cov tsiaj uas noj lawv. Nroj tsuag kev tiv thaiv muaj xws li: Mechanical tiv thaiv ntawm qhov chaw ntawm lub cog ; complex polymers uas txo cog digestibility rau tsiaj; thiab co toxins uas tua los yog tshuaj tua kab mob herbivores.

Tsis tas li ntawd, tsob nroj tiv thaiv mechanism yog dab tsi? Tsob ntoo tiv thaiv tawm tsam herbivory los yog host- cog Resistance (HPR) piav qhia txog ntau yam kev hloov pauv hloov zuj zus los ntawm nroj tsuag uas txhim kho lawv txoj sia nyob thiab kev yug me nyuam los ntawm kev txo qhov cuam tshuam ntawm herbivores. Cov tshuaj no tiv thaiv tuaj yeem ua cov tshuaj tua kab mob lossis co toxins rau herbivores, lossis txo cog digestibility.

Ib yam li ntawd, nws raug nug, ob qho tshuaj tiv thaiv ntawm cov nroj tsuag yog dab tsi?

Tshuaj tiv thaiv : Tsim los ntawm tshuaj Cov tebchaw khaws cia, zoo li phenolics, terpenoids, thiab alkaloids, thiab tso tawm los ntawm kev tawm tsam. Antinutritive tiv thaiv suav nrog tshuaj , co toxins, tiv thaiv proteins, enzymes, thiab resin deposits uas muaj peev xwm ntws mus tua los yog lub cev cuab lub cev me me.

Cov nroj tsuag siv tshuaj li cas los tiv thaiv lawv tus kheej?

Nroj tsuag siv cyanide rau tiv thaiv lawv tus kheej Piv txwv li, thaum tib neeg los yog kab noj lawv. Hauv qhov no, lub cog tso tawm lub foob pob hluav taws xob ncaj qha mus rau tus neeg tawm tsam. Lub cyanide ua rau kab mob thiab nws tsis noj cov cog.