PMC

Coefficient of correlation between the content of phosphorus (% DM) and the content of (a) calcium and (b) magnesium (% DM) present in the mineral composition of the herb of the summer savory cv. Saturn in relation to the nitrogen dose and plant development phases () (* correlation at p < 0.05).

Plant nutrient acquisition. P content (a) and mineral and symbiotically fixed N content (b) in plants of the grassland microcosms containing no plant symbionts (C), only rhizobia (R), only AM fungi (M), both symbionts (MR). Total plant nutrient content (shoot and roots combined) refers to the overall plant nutrient uptake in the microcosms (sum of the three harvests). Bars represent means (n=9;±s.e.m.) and letters indicate statistical significance; treatments not sharing a letter differ at P<0.05 (Tukey's HSD). Statistic details and the nutrient acquisition data per functional groups are reported in and , respectively.

The multiple cellular functions of plant aquaporins in mineral nutrition. The figure illustrates the variety of transporter functions of aquaporins in various subcellular compartments. The different subclasses of aquaporins are identified in different colours. The plasma membrane intrinsic proteins (PIPs) might be involved in the internal re-distribution of mineral nutrients by transporting them from the endoplasmic reticulum (ER) to the plasma membrane via the Golgi apparatus. Moreover, PIPs also undergo repeated cycles of endocytosis and recycling through the early endosome to the multivesicular body/prevacuolar compartments before eventually being targeted to the vacuole. PIPs primarily facilitated urea and boric acid transport, while tonoplast intrinsic proteins (TIPs) are principally involved in urea, NH₃, and boric acid transport, and nodulin 26-like intrinsic proteins (NIPs) are involved in urea, boric acid, and silicic acid transport.

Ishikawa diagram for quick visualization of the main categories of causes (plant material, cultural conditions, nutrition, plant growth regulators, and vitamins) that affect the plant cell tissue culture. Each category grouped factors representing the root causes of variation on the final quality of the process. As example of plant growth regulators. the next auxins (IAA, indole acetic acid; IBA, indole-butiric acid); CKs, cytokinins (BAP, Benzyl adenine purine; KIN, kinetin), and GA, gibberellins (GA₃, gibberellic acid) were included.