植物生理學(xué)其目的在于認(rèn)識(shí)植物的物質(zhì)代謝、能量轉(zhuǎn)化和生長(zhǎng)發(fā)育等的規(guī)律與機(jī)理、調(diào)節(jié)與控制以及植物體內(nèi)外環(huán)境條件對(duì)其生命活動(dòng)的影響。包括光合作用、植物代謝、植物呼吸、植物水分生理、植物礦質(zhì)營(yíng)養(yǎng)、植物體內(nèi)運(yùn)輸、生長(zhǎng)與發(fā)育、抗逆性和植物運(yùn)動(dòng)等研究?jī)?nèi)容。
測(cè)定植物組織的成分含量是植物生理學(xué)研究中不可或缺的一部分。
植物的基本組成物質(zhì)如蛋白質(zhì)、糖、脂肪和核酸以及它們的代謝都與其他生物(動(dòng)物、微生物)大同小異。但是,植物本身又有一些獨(dú)特的地方,如:
①能利用太陽(yáng)能,用來(lái)自空氣中的 CO2和土壤中的水及礦物質(zhì)合成有機(jī)物,因而是現(xiàn)代地球上幾乎一切有機(jī)物的原初生產(chǎn)者。
②植物扎根在土中營(yíng)固定式生活,趨利避害的余地很小,必須能適應(yīng)當(dāng)?shù)丨h(huán)境條件并演化出對(duì)不良環(huán)境的耐性與抗性。
③植物的生長(zhǎng)沒(méi)有定限,雖然部分組織或細(xì)胞死亡,仍可以再生或更新,不斷地生長(zhǎng)。
④植物的體細(xì)胞具全能性,在適宜的條件下,體細(xì)胞經(jīng)過(guò)生長(zhǎng)和分化,就可成為一棵完整的植株。因此植物生理學(xué)在實(shí)踐上、理論上都具有重要的意義。
實(shí)驗(yàn)步驟
需了解具體步驟,請(qǐng)致電廠家
實(shí)驗(yàn)結(jié)果
研磨后的樣品色澤均勻,可用于在糖類,酶活,有機(jī)酸等實(shí)驗(yàn)中的測(cè)定。穩(wěn)定的樣品研磨效果可保證更準(zhǔn)確的實(shí)驗(yàn)數(shù)據(jù)。
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