A lokacin rani, tsirrai suna fuskantar matsin lamba da yawa kamar yanayin zafi mai yawa, haske mai ƙarfi, fari (matsalar ruwa), da kuma matsin lamba na oxidative. Betaine, a matsayin muhimmin mai daidaita osmotic da kuma maganin da ya dace da kariya, yana taka muhimmiyar rawa wajen jure wa tsire-tsire daga waɗannan matsin lamba na lokacin rani. Manyan ayyukansa sun haɗa da:

1. Tsarin kiyayewa:
Kula da matsin lamba na tantanin halitta:

Yawan zafin jiki da fari suna sa tsire-tsire su rasa ruwa, wanda ke haifar da ƙaruwar ƙarfin osmotic na cytoplasmic (yana ƙara kauri), wanda ke haifar da bushewa da bushewar ƙwayoyin halitta daga ramukan da ke kewaye ko bangon ƙwayoyin halitta waɗanda ke da ƙarfin sha ruwa mai ƙarfi. Betaine yana taruwa da yawa a cikin cytoplasm, yana rage ƙarfin osmotic na cytoplasm yadda ya kamata, yana taimaka wa ƙwayoyin halitta su riƙe matsin lamba mai yawa, ta haka yana tsayayya da bushewa da kuma kiyaye daidaiton tsarin ƙwayoyin halitta da aikinsu.

Matsi mai daidaita iskar osmotic:

Adadin ions marasa tsari (kamar K⁺, Cl⁻, da sauransu) suna taruwa a cikin vacuole don kiyaye matsin lamba na osmotic. Betaine galibi yana wanzuwa a cikin cytoplasm, kuma tarinsa yana taimakawa wajen daidaita bambancin matsin lamba na osmotic tsakanin cytoplasm da vacuoles, yana hana lalacewar cytoplasm saboda yawan bushewar jiki.

2. Kare ƙwayoyin halitta:
Tsarin furotin mai ƙarfi:

Yanayin zafi mai yawa na iya haifar da rashin daidaituwar furotin da rashin aiki cikin sauƙi. Kwayoyin Betaine suna ɗauke da caji mai kyau da mara kyau (zwitterionic) kuma suna iya daidaita yanayin sunadarai ta hanyar haɗa hydrogen da ruwa, hana naɗewa, haɗuwa, ko rashin daidaituwa a yanayin zafi mai yawa. Wannan yana da mahimmanci don kiyaye ayyukan enzyme, mahimman furotin a cikin photosynthesis, da ayyukan sauran furotin na rayuwa.

Tsarin fim mai kariya:

Yawan zafin jiki da kuma iskar oxygen mai amsawa na iya lalata tsarin lipid bilayer membranes na tantanin halitta (kamar membranes na thylakoid da plasma membranes), wanda ke haifar da rashin daidaituwar ruwan membrane, zubewa, har ma da wargajewa. Betaine na iya daidaita tsarin membrane, kiyaye ruwansa na yau da kullun da kuma ikon zaɓaɓɓen aiki, da kuma kare mutuncin gabobin photosynthetic da organelles.

3. Kariyar hana tsufa:
Kula da daidaiton osmotic kuma rage lalacewar da damuwa ke haifarwa.

Daidaita tsarin da ayyukan enzymes masu hana tsufa (kamar superoxide dismutase, catalase, ascorbate peroxidase, da sauransu), haɓaka ingancin tsarin kariya daga ƙwayoyin cuta, da kuma taimakawa wajen share nau'ikan iskar oxygen masu amsawa a kaikaice.
Cire nau'in iskar oxygen mai amsawa kai tsaye:

Hasken rana mai ƙarfi da yanayin zafi mai yawa a lokacin rani na iya haifar da samar da adadi mai yawa na nau'ikan iskar oxygen masu amsawa a cikin tsirrai, wanda ke haifar da lalacewar oxidative. Duk da cewa betaine kanta ba mai ƙarfi ba ne na antioxidant, ana iya cimma shi ta hanyar:

4. Kare photosynthesis:
Yawan zafin jiki da kuma tsananin hasken rana suna haifar da mummunar illa ga tsarin photosynthesis, tsarin photosystem II. Betaine na iya kare membrane na thylakoid, yana kula da daidaiton hadadden tsarin photosystem II, yana tabbatar da aiki mai kyau na sarkar jigilar lantarki, da kuma rage hana daukar hoto na photosynthesis.

5. A matsayin mai bayar da gudummawar methyl:

Betaine yana ɗaya daga cikin muhimman masu ba da gudummawar methyl a cikin halittu masu rai, waɗanda ke da hannu a cikin zagayowar methionine. A ƙarƙashin yanayin damuwa, yana iya shiga cikin haɗakar wasu abubuwa ko daidaita metabolism na wasu abubuwa masu amsawa ga damuwa ta hanyar samar da ƙungiyoyin methyl.

A taƙaice, a lokacin zafi mai zafi, babban aikin betaine akan tsirrai shine:

Rike ruwa da juriyar fari:yana yaƙi da bushewar ruwa ta hanyar daidaita osmotic.
Kariyar juriyar zafi:yana kare sunadaran, enzymes, da membranes na tantanin halitta daga lalacewar yanayin zafi mai yawa.

Juriya ga iskar shaka:yana ƙara ƙarfin antioxidant kuma yana rage lalacewar photooxidative.
Kula da photosynthesis:kare gabobin photosynthesis da kuma kula da samar da makamashi na asali.

Saboda haka, lokacin da tsire-tsire suka fahimci alamun damuwa kamar yawan zafin jiki da fari, suna kunna hanyar haɗa betaine (galibi ta hanyar oxidation na choline a cikin chloroplasts mai matakai biyu), suna tara betaine da ƙarfi don haɓaka juriyar damuwa da inganta ƙarfin rayuwarsu a cikin mawuyacin yanayi na bazara. Wasu amfanin gona masu jure fari da gishiri (kamar su beets na sukari, alayyafo, alkama, sha'ir, da sauransu) suna da ƙarfin tattara betaine.

A fannin noma, ana amfani da feshin betaine na waje a matsayin maganin hana tsufa don ƙara juriyar amfanin gona (kamar masara, tumatir, barkono, da sauransu) ga yanayin zafi mai zafi a lokacin rani da kuma matsin lamba na fari.