F_1 hybrid between 90-12(Gossypium hirsutum)and Xin 7(G.barbadense),and its parents were compared for ultrastructure of chloroplast,chlorophyll content,net photosynthetic rate in the functional leaves,per-plant leaf area and dry-matter weight.
Pot and field experiments were carried out to study the effect of low Se concentration on soybean chloroplast ultra-structure and on Mg, Fe, Mn and contents in soybean leaves under continuous cropping stress.
(2) Yellowish-green plants whose chlorophyll content was 58% of the wild type did not obviously differed in chloroplast ultra-structure from the parent,but their stroma-thylakoids and granum-thylakoids were highly differentiated and their granum and grana lamellae were relatively plentiful;
In pea leaves tolerant to red-light irradiation, chloroplast ultrastructure did not essentially change.
The chloroplast ultrastructure, plastid pigments, and potential photosynthesis of leaf mesophyll cells were examined during the vegetative season of two spring ephemers Scilla sibirica Haw.
Changes in the chloroplast ultrastructure and starch and lipid content in the mesophyll and phloem companion cells of the phloem were studied after induction of source and sink functions in leaf tissues.
altissima plants retained the chloroplast ultrastructure and photosynthetic function in an intact condition.
More injured needles had lower content of chloroplast pigments and changed chloroplast ultrastructure, in comparison with less injured needles.