The results showed that the levels of arginine and arginase were the highest in cotyledons, which decreased slowly during plant development, followed by leaves and stems, with roots being the lowest.
结果表明，精氨酸含量和精氨酸酶活性子叶中最高，且随幼苗生长发育逐渐下降，其次为叶片和茎，根中最低。
Plant Development
英语例句库
原声例句
IELTS Reading
The new findings, published in the journal Science, show that phytochromes control genetic switches in response to temperature as well as light to dictate plant development.
发表在《科学》杂志上的新发现表明，光敏色素控制基因开关以响应温度和光来控制植物发育。
中文百科
植物形态学 Plant morphology
（重定向自Plant Development）
![](/Images/godic/202502/03/1859-Martinique.web5450.jpg")
植物形态学（英语：Plant morphology、phytomorphology） 是一门研究植物的外部形态及构造的科学。Bold等人 （1987年）定义为植物的「构造、组成、发育之个体发生及亲缘关系之研究」
英语百科
Plant morphology 植物形态学
（重定向自Plant Development）
![Inflorescences emerging from protective coverings](/Images/godic/202502/03/Angelica_gigas5450.jpg")
![Asclepias syriaca showing complex morphology of the flowers.](/Images/godic/202502/03/Asclepia_syriaca35450.jpg")
![Looking up into the branch structure of a Pinus sylvestris tree](/Images/godic/202502/03/Strom_roka_borovica_velke_borove_035450.jpg")
![](/Images/godic/202502/03/E_obesa_symmetrica_ies5451.jpg")
Plant morphology or phytomorphology is the study of the physical form and external structure of plants. This is usually considered distinct from plant anatomy, which is the study of the internal structure of plants, especially at the microscopic level. Plant morphology is useful in the visual identification of plants.
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