| #231 | Physiologia plantarum. -- Oxford : Blackwell, 1948-. -- ISSN 0031-9317 print. -- ISSN 1399-3054 online |
| #232 | Physiological chemistry and physics. -- Wake Forest : Meridional Publications, 1983-. -- ISSN 0748-6642 |
| #233 | Phytochemistry. -- Oxford : Pergamon, 1961-. -- ISSN 0031-9422 print. -- ISSN 1873-3700 online |
| #234 | Plant and cell physiology. -- Tokyo : Japanese Society of Plant Physiologists, 1960-. -- ISSN 0032-0781 print. -- ISSN 1471-9053 online |
| #235 | Plant physiology. -- Washington : American Society of Plant Physiologists, 1926-. -- ISSN 0032-0889 print. -- ISSN 1532-2548 online |
| #236 | Planta. -- Berlin : Springer, 1934-. -- ISSN 0032-0935 print. -- ISSN 1432-2048 online |
| #237 | Planta medica : natural products and medicinal plant research. -- Stuttgart : Georg Thieme Verlag, 1953-. -- ISSN 0032-0943 print. -- ISSN 1439-0221 online |
| #238 | Plasmid. -- New York : Academic Press, 1977-. -- ISSN 0147-619X print. -- ISSN 1095-9890 online |
| #239 | Postepy biochemii. -- Warszawa : Polskie Towarzystwo Biochemiczne, 1953-. -- ISSN 0032-5422 |
| #240 | Preparative biochemistry. -- New York : Decker, 1971-1995. -- ISSN 0032-7484 |